YNL05S10025-002G - Power-One

MCD10188 Rev. 1.0, 21-Jun-10 Page 1 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Applications

 Intermediate Bus Architectures

 Telecommunications

 Data communications

 Distributed Power Architectures

 Servers, workstations

Benefits

 High efficiency – no heat sink required

 Reduces total solution board area

 Tape and reel packing

 Compatible with pick & place equipment

The Products: Y-Series

Features

 RoHS lead-free solder and lead-solder-exempted

products are available

 Delivers up to 10 A (33 W)

 No derating up to 85 C

 Surface-mount package

 Industry-standard footprint and pinout

 Small size and low profile: 1.30” x 0.53” x 0.314”

(33.02 x 13.46 x 7.98 mm)

 Weight: 0.22 oz [6.12 g]

 Co-planarity less than 0.003”, maximum

 Synchronous Buck Converter topology

 Start-up into pre-biased output

 No minimum load required

 Programmable output voltage via external resistor

 Operating ambient temperature: -40 °C to 85 °C

 Remote output sense

 Remote ON/OFF (positive or negative)

 Fixed-frequency operation

 Auto-reset output overcurrent protection

 Auto-reset overtemperature protection

 High reliability, MTBF = 32.54 million hours

calculated per Telcordia TR-332, Method I Case 1

 All materials meet UL94, V-0 flammability rating

 UL60950 recognition in U.S. & Canada, and DEMKO

certification per IEC/EN60950

Description

The YNL05S100xy non-isolated DC-DC converters deliver up to 10 A of output current in an industry-standard

surface-mount package. Operating from a 3.0 to 5.5 VDC input, the YNL05S100xy converters are ideal choices

for Intermediate Bus Architectures where Point-of-Load (POL) power delivery is generally a requirement. The

converters are available in individual output voltage versions, allowing coverage of the output voltage range from

0.9 to 3.3 VDC. Each version is capable of providing an extremely tight, highly regulated and trimmable output.

The YNL05S100xy converters provide exceptional thermal performance, even in high temperature environments

with no airflow. No derating is required up to 85 C, without airflow at natural convection. This performance is

accomplished through the use of advanced circuitry, packaging, and processing techniques to achieve a design

possessing ultra-high efficiency, excellent thermal management, and a very low-body profile.

The low-body profile and the preclusion of heat sinks minimize impedance to system airflow, thus enhancing

cooling for both upstream and downstream devices. The use of 100% automation for assembly, coupled with

advanced power electronics and thermal design, results in a product with extremely high reliability.

MCD10188 Rev. 1.0, 21-Jun-10 Page 2 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Electrical Specifications

Conditions: TA = 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 5 VDC, Vout = 0.9 – 3.3 VDC, unless otherwise specified.

Parameter Notes Min Typ Max Units

Absolute Maximum Ratings

Input Voltage Continuous -0.3 6 VDC

Operating Ambient Temperature -40 85 °C

Storage Temperature -55 125 °C

Feature Characteristics

Switching Frequency Full Temperature Range 250 300 350 kHz

Output Voltage Trim Range1 See Trim equation -10 +10 %

Vout = 0.9 VDC -5 +10 %

Remote Sense Compensation1 Percent of VOUT(NOM) 0.5 VDC

Turn-On Delay Time2 Full resistive load

With Vin (Converter Enabled, then

Vin applied) From Vin = Vin(min) to Vo = 0.1* Vo(nom) 3 3.5 4.5 ms

With Enable (Vin = Vin(nom)

applied, then enabled) From enable to Vo = 0.1*Vo(nom) 3 3.5 4.5 ms

Rise time2 From 0.1*Vo(nom) to 0.9*Vo(nom) 3 3.5 5 ms

ON/OFF Control (Positive Logic) 3

Converter Off -5 0.8 VDC

Converter On 2.4 5.5 VDC

ON/OFF Control (Negative Logic) 3

Converter Off 2.4 5.5 VDC

Converter On -5 0.8 VDC

Additional Notes:

1 The output voltage should not exceed 3.63 V (taking into account both the trimming and remote sense compensation).

2 Note that startup time is the sum of turn-on delay time and rise time.

3 The converter is on if ON/OFF pin is left open.

MCD10188 Rev. 1.0, 21-Jun-10 Page 3 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Electrical Specifications (continued)

Conditions: TA = 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 5 VDC, Vout = 0.9 – 3.3 VDC, unless otherwise specified.

Parameter Notes Min Typ Max Units

Input Characteristics

Operating Input Voltage Range VOUT = 0.9 – 2.5 VDC 3.0 5.0 5.5 VDC

OUT > 2.5 VDC 4.5 5.0 5.5 VDC

Input Undervoltage Lockout

Turn-on Threshold Guaranteed by controller 1.95 2.05 2.15 VDC

Turn-off Threshold Guaranteed by controller 1.73 1.9 2.07 VDC

Maximum Input Current

VIN = 4.5 VDC, IOUT = 10 A VOUT = 3.3 VDC 7.9 ADC

VIN = 3.0 VDC, IOUT = 10 A VOUT = 2.5 VDC 9.1 ADC

VIN = 3.0 VDC, IOUT = 10 A VOUT = 2.0 VDC 7.3 ADC

VIN = 3.0 VDC, IOUT = 10 A VOUT = 1.8 VDC 6.7 ADC

VIN = 3.0 VDC, IOUT = 10 A VOUT = 1.5 VDC 5.7 ADC

VIN = 3.0 VDC, IOUT = 10 A VOUT = 1.2 VDC 4.7 ADC

VIN = 3.0 VDC, IOUT = 10 A VOUT = 1.0 VDC 4.0 ADC

VIN = 3.0 VDC, IOUT = 10 A VOUT = 0.9 VDC 3.6 ADC

Input Standby Current (Converter disabled) Vin = 5.0 VDC 10 mA

Input No Load Current (Converter enabled) Vin = 5.5 VDC

VOUT = 3.3 VDC 90 mA

VOUT = 2.5 VDC 90 mA

VOUT = 2.0 VDC 80 mA

VOUT = 1.8 VDC 75 mA

VOUT = 1.5 VDC 70 mA

VOUT = 1.2 VDC 65 mA

VOUT = 1.0 VDC 60 mA

VOUT = 0.9 VDC 50 mA

Input Reflected-Ripple Current -

s See Fig. H for setup (BW = 20 MHz) 15 mAP-P

MCD10188 Rev. 1.0, 21-Jun-10 Page 4 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Electrical Specifications (continued)

Conditions: TA = 25 ºC, Airflow = 300 LFM (1.5 m/s), Vin = 5 VDC, Vout = 0.9 – 3.3 VDC, unless otherwise specified.

Parameter Notes Min Typ Max Units

Output Characteristics

Output Voltage Set Point (no load) -1.5 Vout +1.5 %Vout

Output Regulation4

Over Line Full resistive load 0.1 0.5 %Vout

Over Load From no load to full load 0.1 0.5 %Vout

Output Voltage Accuracy

(Over all operating input voltage, resistive load

and temperature conditions until end of life )

-3 +3 %Vout

Output Ripple and Noise – 20 MHz bandwidth Over line, load and temperature (Fig. H)

Peak-to-Peak VOUT = 3.3 VDC 30 50 mVP-P

Peak-to-Peak VOUT = 0.9 VDC 15 30 mVP-P

External Load Capacitance Plus full load (resistive)

Min ESR > 1 m 1,000 F

Min ESR > 10 m 5,000 F

Output Current Range 0 10 A

Output Current Limit Inception (IOUT) 18 A

Output Short-Circuit Current (Hiccup mode) Short = 10 m, continuous 3 Arms

Dynamic Response

50% Load current change from

5 A -10 A with di/dt = 5 A/s4 Co = 47 F tant. + 1 F ceramic 110 mV

Settling Time (VOUT < 10% peak deviation)4 25 µs

50% Load current change from

5 A -10 A with di/dt = -5 A/s4 Co = 47 F tant. + 1 F ceramic 120 mV

Settling Time (VOUT < 10% peak deviation)4 25 µs

Efficiency Full load (10 A)

OUT = 3.3 VDC 94.5 %

OUT = 2.5 VDC 93.0 %

OUT = 2.0 VDC 92.0 %

OUT = 1.8 VDC 91.5 %

OUT = 1.5 VDC 89.5 %

OUT = 1.2 VDC 87.5 %

OUT = 1.0 VDC 86.0 %

OUT = 0.9 VDC 84.5 %

Additional Notes:

4 See waveforms for dynamic response and settling time for different output voltages.

MCD10188 Rev. 1.0, 21-Jun-10 Page 5 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Operations

Input and Output Impedance

The Y-Series converter should be connected via a

low impedance to the DC power source. In many

applications, the inductance associated with the

distribution from the power source to the input of the

converter can affect the stability of the converter.

The use of decoupling capacitors is recommended in

order to ensure stability of the converter and reduce

input ripple voltage. Internally, the converter has

52 F (low ESR ceramics) of input capacitance.

In a typical application, low - ESR tantalum or POS

capacitors will be sufficient to provide adequate

ripple voltage filtering at the input of the converter.

However, very low ESR ceramic capacitors

100 - 200 F are recommended at the input of the

converter in order to minimize the input ripple

voltage. They should be placed as close as possible

to the input pins of the converter.

The YNL05S100xy has been designed for stable

operation with or without external capacitance. Low

ESR ceramic capacitors placed as close as possible

to the load (minimum 47 F) are recommended for

improved transient performance and lower output

voltage ripple.

It is important to keep low resistance and low

inductance PCB traces for connecting load to the

output pins of the converter in order to maintain good

load regulation.

Fig. A shows the input voltage ripple for various

output voltages using four 47 F input ceramic

capacitors. The same plot is shown in Fig. B with

one 470 F polymer capacitor (6TPB470M from

Sanyo) in parallel with two 47 F ceramic capacitors

at full load.

100

120

140

01234

Vout [V]

Input Voltage Ripple [mV]

Vin=5.0V

Vin=3.3V

Fig. A: Input Voltage Ripple, CIN = 4x47 μF ceramic, full load.

100

120

140

160

01234

Vout [V]

Input Voltage Ripple [mV]

Vin=5.0V

Vin=3.3V

Fig. B: Input Voltage Ripple, CIN = 470 μF polymer +

2 x 47 μF ceramic.

ON/OFF (Pin 1)

The ON/OFF pin is used to turn the power converter

on or off remotely via a system signal. There are two

remote control options available, positive logic

(standard option) and negative logic, with ON/OFF

signal referenced to GND. The typical connections

are shown in Fig. C.

Rload

Vin

CONTROL

INPUT

Vin

GND

ON/OFF

SENSE

(Top View)

Converter

TRIM

Vout

R* is for negative logic option only

Y-Series

Fig. C: Circuit configuration for ON/OFF function.

To turn the converter on the ON/OFF pin should be

at a logic low or left open, and to turn the converter

off the ON/OFF pin should be at a logic high or

connected to Vin. See the Electrical Specifications

for logic high/low definitions.

The positive logic version turns the converter on

when the ON/OFF pin is at a logic high or left open,

and turns the converter off when at a logic low or

shorted to GND.

The negative logic version turns the converter on

when the ON/OFF pin is at logic low or left open, and

turns the converter off when the ON/OFF pin is at a

logic high or connected to Vin.

The ON/OFF pin is internally pulled up to Vin for

positive logic version, and pulled down for a negative

logic version. A TTL or CMOS logic gate, open-

MCD10188 Rev. 1.0, 21-Jun-10 Page 6 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

collector (open-drain) transistor can be used to drive

ON/OFF pin. This device must be capable of:

– sinking up to 1.2 mA at a low level voltage of

 0.8 V

– sourcing up to 0.25 mA at a high logic level of

2.3 - 5.5 V.

When using open-collector (open-drain) transistor

with a negative logic option, add a pull-up resistor

(R*) to Vin as shown in Fig. C:

– 20 K, if the minimum Vin is 4.5 V

– 10 K, if the minimum Vin is 3.0 V

– 5 K, if the undervoltage shutdown at 2.05 - 2.15 V

is required.

Remote Sense (Pin 2)

The remote sense feature of the converter

compensates for voltage drops occurring only

between Vout pin (Pin 4) of the converter and the

load. The SENSE (Pin 2) pin should be connected at

the load or at the point where regulation is required

(see Fig. D). There is no sense feature on the output

GND return pin, where the solid ground plane should

provide a low voltage drop.

VinVin

Rload

Vin

GND

ON/OFF

(Top View)

Converter

TRIM

SENSE

Vout

Y-Series

Fig. D: Remote sense circuit configuration.

The option without SENSE pin is available; see the

Part Numbering Scheme section for the ordering

information. However, if remote sensing is not

required, the SENSE pin must be connected to the

Vout pin (Pin 4) to ensure the converter will regulate

at the specified output voltage. If these connections

are not made, the converter will deliver an output

voltage that is slightly higher than the specified

value.

Because the sense lead carries minimal current,

large traces on the end-user board are not required.

However, the sense trace should be located close to

a ground plane to minimize system noise and ensure

optimum performance.

When utilizing the remote sense feature, care must

be taken not to exceed the maximum allowable

output power capability of the converter, which is

equal to the product of the nominal output voltage

and the allowable output current for the given

conditions.

When using remote sense, the output voltage at the

converter can be increased up to 0.5 V above the

nominal rating in order to maintain the required

voltage across the load. Therefore, the designer

must, if necessary, decrease the maximum current

(originally obtained from the derating curves) by the

same percentage to ensure the converter’s actual

output power remains at or below the maximum

allowable output power.

Output Voltage Adjust/Trim (Pin 3)

The output voltage can be adjusted up 10% or down

10% of its nominal output rating using an external

resistor. The converter without Trim feature is also

available; see the Part Numbering Scheme section

for the ordering information.

Rload

Vin

RT-INCR

Converter

Vin

GND

ON/OFF

SENSE

(Top View)

TRIM

Vout

Y-Series

Fig. E: Configuration for increasing output voltage.

To trim up the output voltage, refer to Fig. E. A trim

resistor, RT-INCR, should be connected between TRIM

pin (Pin 3) and GND pin (Pin 5) with value of:

For VO-NOM  1.2 V,

INTINCRT R

)V- (V

08.24

NOM-OREQ-O

 [k]

For VO-NOM = 1.0 V and 0.9 V,

INTINCRT R

)V- (V

21.07

NOM-OREQ-O

 [k]

where,



INCRTRRequired value of trim-up resistor [k]



REQOVDesired (trimmed) output voltage [V]



NOMOVNominal output voltage [V]



INTRInternal series resistor according to Table 1

[k]

Table 1: Internal series Resistors RINT

0-NOM [V] 3.3 2.5 2.0 1.8 1.5 1.2 1.0 0.9

RINT [kΩ] 59 78.7 100 100 100 59 30.1 5.11

MCD10188 Rev. 1.0, 21-Jun-10 Page 7 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

To trim down the output voltage (Fig. F), a trim

resistor, RT-DECR, should be connected between

the TRIM pin (Pin 3) and SENSE pin (Pin 2), with a

value of:

For VO-NOM  1.2 V,

INTDECRT R

)V- (V

30.1 *0.8)- (V

REQ-ONOM-O

REQ-O  [k]

For VO-NOM = 1.0 V, 0.9 V,

INTDECRT R

)V- (V

30.1 *0.7)- (V

REQ-ONOM-O

REQ-O  [k]

where, DECRTRRequired value of trim-down

resistor [k]

Rload

Vin

RT-DECR

Converter

Vin

GND

ON/OFF

SENSE

(Top View)

TRIM

Vout

Y-Series

Fig. F: Configuration for decreasing output voltage.

Standard 1% and 5% resistors can be used for

trimming. Ground pin of the trim resistor should be

connected directly to the module GND pin (Pin 5)

with no voltage drop in between.

The output voltage can be trimmed up or down using

an external voltage source:

For VO-NOM  1.2 V,

30.1

R*)V- (V

8.0V INT

RIMT

NOM-OREQ-O

 [V]

For VO-NOM = 1.0 V, 0.9 V,

30.1

R*)V- (V

7.0V INT

RIMT

NOM-OREQ-O

 [V]

where, RIMTVOutput voltage applied to TRIM pin

(referenced to GND) [V]

The trim equations for the converters with VO-NOM 

1.2 V are industry standard; thus allowing easy

second sourcing.

Protection Features

Input Undervoltage Lockout

Input undervoltage lockout is standard with this

converter. The converter will shut down when the

input voltage drops below a pre-determined voltage;

it will start automatically when Vin returns to a

specified range.

The input voltage must be typically 2.05 V for the

converter to turn on. Once the converter has been

turned on, it will shut off when the input voltage

drops below typically 1.9 V.

Output Overcurrent Protection (OCP)

The converter is protected against overcurrent and

short circuit conditions. Upon sensing an overcurrent

condition, the converter will enter hiccup mode. Once

an over-load or short circuit condition is removed,

Vout will return to nominal value.

Overtemperature Protection (OTP)

The converter will shut down under an

overtemperature condition to protect itself from

overheating caused by operation outside the thermal

derating curves, or operation in abnormal conditions

such as system fan failure. After the converter has

cooled to a safe operating temperature, it will

automatically restart.

Safety Requirements

The converter meets North American and

International safety regulatory requirements per

UL60950 and EN60950. The maximum DC voltage

between any two pins is Vin under all operating

conditions. Therefore, the unit has ELV (extra low

voltage) output; it meets SELV requirements under

the condition that all input voltages are ELV.

The converter is not internally fused. To comply with

safety agencies’ requirements, a recognized fuse

with a maximum rating of 20 Amps must be used in

series with the input line.

Characterization

General Information

The converter has been characterized for many

operational aspects, to include thermal derating

(maximum load current as a function of ambient

temperature and airflow) for vertical and horizontal

mountings, efficiency, startup and shutdown

parameters, output ripple and noise, transient

response to load step-change, overload, and short

circuit.

MCD10188 Rev. 1.0, 21-Jun-10 Page 8 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

The figures are numbered as Fig. x.y, where x

indicates the different output voltages, and y

associates with specific plots (y = 1 for the vertical

thermal derating, …). For example, Fig. x.1 will refer

to the vertical thermal derating for all the output

voltages in general.

The following pages contain specific plots or

waveforms associated with the converter. Additional

comments for specific data are provided below.

Test Conditions

All data presented were taken with the converter

soldered to a test board, specifically a 0.060” thick

printed wiring board (PWB) with four layers. The top

and bottom layers were not metalized. The two inner

layers, comprised of two-ounce copper, were used to

provide traces for connectivity to the converter.

The lack of metalization on the outer layers as well

as the limited thermal connection ensured that heat

transfer from the converter to the PWB was

minimized. This provides a worst-case but consistent

scenario for thermal derating purposes.

All measurements requiring airflow were made in the

vertical and horizontal wind tunnels using Infrared

(IR) thermography and thermocouples for

thermometry.

Ensuring components on the converter do not

exceed their ratings is important to maintaining high

reliability. If one anticipates operating the converter

at or close to the maximum loads specified in the

derating curves, it is prudent to check actual

operating temperatures in the application.

Thermographic imaging is preferable; if this

capability is not available, then thermocouples may

be used. The use of AWG #40 gauge thermocouple

is recommended to ensure measurement accuracy.

Careful routing of the thermocouple leads will further

minimize measurement error. Refer to Fig. G for the

optimum measuring thermocouple location.

Fig. G: Location of the thermocouple for thermal testing.

Thermal Derating

Load current vs. ambient temperature and airflow

rates are given in Figs. x.1 and Figs. x.2 for

maximum temperature of 110°C. Ambient

temperature was varied between 25 °C and 85 °C,

with airflow rates from 30 to 500 LFM (0.15 m/s to

2.5 m/s), and vertical and horizontal mountings. The

airflow during the testing is parallel to the short axis

of the converter, going from pin 1 and pin 6 to

pins 2–5.

For each set of conditions, the maximum load

current is defined as the lowest of:

(i) The output current at which any MOSFET

temperature does not exceed a maximum specified

temperature (110°C) as indicated by the

thermographic image, or

(ii) The maximum current rating of the converter

(10 A).

During normal operation, derating curves with

maximum FET temperature less than or equal to

110 °C should not be exceeded. Temperature on the

PCB at the thermocouple location shown in Fig. G

should not exceed 110 °C in order to operate inside

the derating curves.

Efficiency

Fig. x.3 shows the efficiency vs. load current plot for

ambient temperature of 25 ºC, airflow rate of

200 LFM (1 m/s), and input voltages of 4.5 V, 5.0 V,

and 5.5 V. Fig. x.4 is for input voltages of 3.0 V,

3.3 V, and 3.6 V, and for output voltages  2.5 V.

Power Dissipation

Fig. 3.3V.4 shows the power dissipation vs. load

current plot for Ta = 25 ºC, airflow rate of 200 LFM

(1 m/s) with vertical mounting and input voltages of

4.5 V, 5.0 V, and 5.5 V, and output of 3.3 V.

Ripple and Noise

The output voltage ripple waveform is measured at

full rated load current. Note that all output voltage

waveforms are measured across a 1 F ceramic

capacitor.

The output voltage ripple and input reflected-ripple

current waveforms are obtained using the test setup

shown in Fig. H.

Vout

Vsource

1 F

ceramic

capacitor

1 H

source

inductance

DC-DC

Converter

4x47 F

ceramic

capacitor

47 F

ceramic

capacitor

CIN

Y-Series

Fig. H: Test Setup for measuring input reflected-ripple

currents, is and output voltage ripple.

MCD10188 Rev. 1.0, 21-Jun-10 Page 9 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 3.3V.1: Available load current vs. ambient temperature

and airflow rates for YNL05S10033 converter mounted

vertically with Vin = 5 V, and maximum MOSFET temperature

 110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

1.00

5.5 V

5.0 V

4.5 V

Fig. 3.3V.3: Efficiency vs. load current and input voltage for

YNL05S10033 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 3.3V.2: Available load current vs. ambient temperature

and airflow rates for YNL05S10033 converter mounted

horizontally with Vin = 5 V, and maximum MOSFET

temperature  110 C.

Load Current [Adc]

024681012

Power Dissipation [W]

0.0

0.5

1.0

1.5

2.0

2.5

5.5 V

5.0 V

4.5 V



Fig. 3.3V.4: Power Loss vs. load current and input voltage for

YNL05S10033 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

MCD10188 Rev. 1.0, 21-Jun-10 Page 10 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Fig. 3.3V.5: Turn-on transient (YNL05S10033) with the

application of Enable signal at full rated load current

(resistive) and 47 μF external capacitance at Vin = 5 V. Top

trace: Enable signal (2 V/div.); Bottom trace: output voltage

(1 V/div.); Time scale: 2 ms/div.

Fig. 3.3V.7: Output voltage (YNL05S10033) to positive load

current step change from 5 A to 10 A with slew rate of 5 A/μs

at Vin = 5 V. Top trace: output voltage (100 mV/div.); Bottom

trace: load current (5 A/div.). Co = 47 μF ceramic + 1 μF

ceramic. Time scale: 20 μs/div.

Fig. 3.3V.6: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

47 μF ceramic + 1 μF ceramic and Vin = 5 V (YNL05S10033).

Time scale: 2 μs/div.

Fig. 3.3V.8: Output voltage response (YNL05S10033) to

negative load current step change from 10 A to 5 A with slew

rate of -5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

MCD10188 Rev. 1.0, 21-Jun-10 Page 11 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 2.5V.1: Available load current vs. ambient temperature

and airflow rates for YNL05S10025 converter mounted

vertically with Vin = 5 V, and maximum MOSFET temperature

 110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

1.00

5.5 V

5.0 V

4.5 V

Fig. 2.5V.3: Efficiency vs. load current and input voltage for

YNL05S10025 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 2.5V.2: Available load current vs. ambient temperature

and airflow rates for YNL05S10025 converter mounted

horizontally with Vin = 5 V, and maximum MOSFET

temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

1.00

3.6 V

3.3 V

3.0 V

Fig. 2.5V.4: Efficiency vs. load current and input voltage for

YNL05S10025 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

MCD10188 Rev. 1.0, 21-Jun-10 Page 12 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Fig. 2.5V.5: Turn-on transient (YNL05S10025) with the

application of Enable signal at full rated load current

(resistive) and 47 μF external capacitance at Vin = 5 V. Top

trace: Enable signal (2 V/div.); Bottom trace: output voltage

(1 V/div.); Time scale: 2 ms/div.

Fig. 2.5V.7: Output voltage response (YNL05S10025) to

positive load current step change from 5 A to 10 A with slew

rate of 5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

Fig. 2.5V.6: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

47 μF ceramic + 1 μF ceramic and Vin = 5 V (YNL05S10025).

Time scale: 2 μs/div.

Fig. 2.5V.8: Output voltage response (YNL05S10025) to

negative load current step change from 10 A to 5 A with slew

rate of -5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

MCD10188 Rev. 1.0, 21-Jun-10 Page 13 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 2.0V.1: Available load current vs. ambient temperature

and airflow rates for YNL05S10020 converter mounted

vertically with Vin = 5 V, and maximum MOSFET temperature

 110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

1.00

5.5 V

5.0 V

4.5 V

Fig. 2.0V.3: Efficiency vs. load current and input voltage for

YNL05S10020 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 2.0V.2: Available load current vs. ambient temperature

and airflow rates for YNL05S10020 converter mounted

horizontally with Vin = 5 V, and maximum MOSFET

temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

1.00

3.6 V

3.3 V

3.0 V



Fig. 2.0V.4: Efficiency vs. load current and input voltage for

YNL05S10020 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

MCD10188 Rev. 1.0, 21-Jun-10 Page 14 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Fig. 2.0V.5: Turn-on transient (YNL05S10020) with the

application of Enable signal at full rated load current

(resistive) and 47 μF external capacitance at Vin = 5 V. Top

trace: Enable signal (2 V/div.); Bottom trace: output voltage

(500 mV/div.); Time scale: 2 ms/div.

Fig. 2.0V.7: Output voltage response (YNL05S10020) to

positive load current step change from 5 A to 10 A with slew

rate of 5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

Fig. 2.0V.6: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

47 μF ceramic + 1 μF ceramic and Vin = 5 V (YNL05S10020).

Time scale: 2 μs/div.

Fig. 2.0V.8: Output voltage response (YNL05S10020) to

negative load current step change from 10 A to 5 A with slew

rate of -5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

MCD10188 Rev. 1.0, 21-Jun-10 Page 15 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.8V.1: Available load current vs. ambient temperature

and airflow rates for YNL05S10018 converter mounted

vertically with Vin = 5 V, and maximum MOSFET temperature

 110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

1.00

5.5 V

5.0 V

4.5 V

Fig. 1.8V.3: Efficiency vs. load current and input voltage for

YNL05S10018 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.8V.2: Available load current vs. ambient temperature

and airflow rates for YNL05S10018 converter mounted

horizontally with Vin = 5 V, and maximum MOSFET

temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

1.00

3.6 V

3.3 V

3.0 V



Fig. 1.8V.4: Efficiency vs. load current and input voltage for

YNL05S10018 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

MCD10188 Rev. 1.0, 21-Jun-10 Page 16 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Fig. 1.8V.5: Turn-on transient (YNL05S10018) with the

application of Enable signal at full rated load current

(resistive) and 47 μF external capacitance at Vin = 5 V. Top

trace: Enable signal (2 V/div.); Bottom trace: output voltage

(500 mV/div.); Time scale: 2 ms/div.

Fig. 1.8V.7: Output voltage response (YNL05S10018) to

positive load current step change from 5 A to 10 A with slew

rate of 5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

Fig. 1.8V.6: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

47 μF ceramic + 1 μF ceramic and Vin = 5 V (YNL05S10018).

Time scale: 2 μs/div.

Fig. 1.8V.8: Output voltage response (YNL05S10018) to

negative load current step change from 10 A to 5 A with slew

rate of -5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

MCD10188 Rev. 1.0, 21-Jun-10 Page 17 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.5V.1: Available load current vs. ambient temperature

and airflow rates for YNL05S10015 converter mounted

vertically with Vin = 5 V, and maximum MOSFET temperature

 110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

5.5 V

5.0 V

4.5 V

Fig. 1.5V.3: Efficiency vs. load current and input voltage for

YNL05S10015 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.5V.2: Available load current vs. ambient temperature

and airflow rates for YNL05S10015 converter mounted

horizontally with Vin = 5 V, and maximum MOSFET

temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.75

0.80

0.85

0.90

0.95

3.6 V

3.3 V

3.0 V



Fig. 1.5V.4: Efficiency vs. load current and input voltage for

YNL05S10015 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

MCD10188 Rev. 1.0, 21-Jun-10 Page 18 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Fig. 1.5V.5: Turn-on transient (YNL05S10015) with the

application of Enable signal at full rated load current

(resistive) and 47 μF external capacitance at Vin = 5 V. Top

trace: Enable signal (2 V/div.); Bottom trace: output voltage

(500 mV/div.); Time scale: 2 ms/div.

Fig. 1.5V.7: Output voltage response (YNL05S10015) to

positive load current step change from 5 A to 10 A with slew

rate of 5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

Fig. 1.5V.6: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

47 μF ceramic + 1 μF ceramic and Vin = 5 V (YNL05S10015).

Time scale: 2 μs/div.

Fig. 1.5V.8: Output voltage response (YNL05S10015) to

negative load current step change from 10 A to 5 A with slew

rate of -5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

MCD10188 Rev. 1.0, 21-Jun-10 Page 19 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.2V.1: Available load current vs. ambient temperature

and airflow rates YNL05S10012 converter mounted vertically

with Vin = 5 V, and maximum MOSFET temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.70

0.75

0.80

0.85

0.90

0.95

5.5 V

5.0 V

4.5 V

Fig. 1.2V.3: Efficiency vs. load current and input voltage for

YNL05S10012 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.2V.2: Available load current vs. ambient temperature

and airflow rates for YNL05S10012 converter mounted

horizontally with Vin = 5 V, and maximum MOSFET

temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.70

0.75

0.80

0.85

0.90

0.95

3.6 V

3.3 V

3.0 V



Fig. 1.2V.4: Efficiency vs. load current and input voltage for

YNL05S10012 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

MCD10188 Rev. 1.0, 21-Jun-10 Page 20 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Fig. 1.2V.5: Turn-on transient (YNL05S10012) with the

application of Enable signal at full rated load current

(resistive) and 47 μF external capacitance at Vin = 5 V. Top

trace: Enable signal (2 V/div.); Bottom trace: output voltage

(500 mV/div.); Time scale: 2 ms/div.

Fig. 1.2V.6: Output voltage response (YNL05S10012) to

positive load current step change from 5 A to 10 A with slew

rate of 5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

Fig. 1.2V.6: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

47 μF ceramic + 1 μF ceramic and Vin = 5 V (YNL05S10012).

Time scale: 2 μs/div.

Fig. 1.2V.8: Output voltage response (YNL05S10012) to

negative load current step change from 10 A to 5 A with slew

rate of -5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

MCD10188 Rev. 1.0, 21-Jun-10 Page 21 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.0V.1: Available load current vs. ambient temperature

and airflow rates YNL05S10010 converter mounted vertically

with Vin = 5 V, and maximum MOSFET temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.70

0.75

0.80

0.85

0.90

0.95

5.5 V

5.0 V

4.5 V

Fig. 1.0V.3: Efficiency vs. load current and input voltage for

YNL05S10010 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

Ambient Temperature [°C]

20 30 40 50 60 70 80 90

Load Current [Adc]

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1.0V.2: Available load current vs. ambient temperature

and airflow rates for YNL05S10010 converter mounted

horizontally with Vin = 5 V, and maximum MOSFET

temperature  110 C.

Load Current [Adc]

024681012

Efficiency

0.70

0.75

0.80

0.85

0.90

0.95

3.6 V

3.3 V

3.0 V



Fig. 1.0V.4: Efficiency vs. load current and input voltage for

YNL05S10010 converter mounted vertically with air flowing at

a rate of 200 LFM (1 m/s) and Ta = 25 C.

MCD10188 Rev. 1.0, 21-Jun-10 Page 22 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Fig. 1.0V.5: Turn-on transient (YNL05S10010) with the

application of Enable signal at full rated load current

(resistive) and 47 μF external capacitance at Vin = 5 V. Top

trace: Enable signal (2 V/div.); Bottom trace: output voltage

(500 mV/div.); Time scale: 2 ms/div.

Fig. 1.0V.7: Output voltage response (YNL05S10010) to

positive load current step change from 5 A to 10 A with slew

rate of 5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

Fig. 1.0V.6: Output voltage ripple (20 mV/div.) at full rated

load current into a resistive load with external capacitance

47 μF ceramic + 1 μF ceramic and Vin = 5 V (YNL05S10010).

Time scale: 2 μs/div.

Fig. 1.0V.8: Output voltage response (YNL05S10010) to

negative load current step change from 10 A to 5 A with slew

rate of -5 A/μs at Vin = 5 V. Top trace: output voltage

(100 mV/div.); Bottom trace: load current (5 A/div.). Co =

47 μF ceramic + 1 μF ceramic. Time scale: 20 μs/div.

NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical

components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written

consent of the respective divisional president of Power-One, Inc.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on

the date manufactured. Specifications are subject to change without notice.

MCD10188 Rev. 1.0, 21-Jun-10 Page 23 of 23 www.power-one.com

YNL05S100xy DC-DC Converter Family Data Sheet

3.0 to 5.5 VDC Input; 0.9 to 3.3 VDC @ 10 A Output

Physical Information

YNL05S Pinout (Surface-mount)

TOP VIEW

(*) PIN # 1 ROTATED 90°

SIDE VIEW

345

1(*)

Converter Part Numbering Scheme

Product

Series

Input

Voltage

Mounting

Scheme

Rated

Load

Current

Output

Voltage

Enable

Logic

Special

Feature Environmental

YNL 05 S 10 033

– 0

Y-Series 3.0 – 5.5 V

S 

Surface-

mount

10 A

009  0.9 V

010  1.0 V

012  1.2 V

015  1.5 V

018  1.8 V

020  2.0 V

025  2.5 V

033  3.3 V

0 

Standard

(Positive

Logic)

D 

Opposite of

Standard

(Negative

Logic)

01  No

Trim Pin

Option

02  No

Remote

Sense Pin

Option

03  No

Trim &

Remote

Sense Pin

Option

No Suffix 

RoHS

lead-solder-

exemption

compliant

G  RoHS

compliant for all

six substances

The example above describes P/N YNL05S10033-0: 3.0 – 5.5 V input, surface-mount, 10 A @ 3.3 V output, standard enable logic, and

Eutectic Tin/Lead solder1. Please consult factory for the complete list of available options.

Note: The TRIM and/or SENSE pin will not be populated depending on the selected special feature “01”, “02” or “03”.

Model numbers highlighted in yellow or shaded are not recommended for new designs.

Pad/Pin Connections

Pad/Pin # Function

1 ON/OFF

2 SENSE

3 TRIM

4 Vout

5 GND

6 Vin

YNL05S Platform Notes

 All dimensions are in inches [mm]

 Connector Material: Copper

 Connector Finish: Gold over Nickel

 Converter Weight: 0.22 oz [6.12 g]

 Converter Height: 0.327” Max., 0.301” Min.

 Recommended surface-mount pads:

Min. 0.080” X 0.112” [2.03 x 2.84]