GE Energy Datasheet
June 24, 2013 ©2012 General Electric Company. All rights reserved.
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
Features
Compliant to RoHS II EU “Directive 2011/65/EU”
Compliant to IPC-9592 (September 2008), Category 2,
Class II
Compatible in a Pb-free or SnPb reflow environment (Z
versions)
Wide Input voltage range (3Vdc-14Vdc)
Output voltage programmable from 0.6Vdc to 5.5Vdc via
external resistor.
Tunable LoopTM to optimize dynamic output voltage
response
Power Good signal
Fixed switching frequency
Output overcurrent protection (non-latching)
Over temperature protection
Remote On/Off
Ability to sink and source current
Cost efficient open frame design
Small size:12.2 mm x 12.2 mm x 4.5 mm
(0.48 in x 0.48 in x 0.18 in)
Wide operating temperature range [-40°C to 105°C]
Ruggedized (-D) version able to withstand high levels of
shock and vibration
UL* 60950-1 2nd Ed. Recognized, CSA† C22.2 No.
60950-1-07 Certified, and VDE‡ (EN60950-1 2nd Ed.)
Licensed
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Industrial equipment
Description
The 2A DLynxTM power modules are non-isolated dc-dc converters that shall deliver up to 2A of output current.
These modules shall operate over a wide range of input voltage (VIN = 3Vdc-14Vdc) and provide a precisely regulated
output voltage from 0.6Vdc to 5.5Vdc, programmable via an external resistor. Features remote On/Off, adjustable
output voltage, over current and over temperature protection. The module shall also include the Tunable LoopTM
feature that allows the user to optimize the dynamic response of the converter to match the load with reduced
amount of output capacitance leading to savings on cost and PWB area.
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
TRIM
VOUT
SENSE
GND
CTUNE
RTUNE
RTrim
VIN
Co
Cin
Vin+ Vout+
ON/OFF
Q1
PGOOD
MODULE
RoHS Compliant
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 2
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings
only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations
sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter Device Symbol Min Max Unit
Input Voltage All VIN -0.3 15 Vdc
Continuous
Operating Ambient Temperature All TA -40 85 °C
(see Thermal Considerations section)
Storage Temperature All Tstg -55 125 °C
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage All VIN 3.0
⎯ 14.0 Vdc
Maximum Input Current All IIN,max 1.8A Adc
(VIN=3V to 14V, IO=IO, max )
Input No Load Current
(VIN = 12.0Vdc, IO = 0, module enabled)
VO,set = 0.6 Vdc IIN,No load 20 mA
VO,set = 5.5Vdc IIN,No load 30 mA
Input Stand-by Current
(VIN = 12.0Vdc, module disabled) All IIN,stand-by 8 mA
Inrush Transient All I2t 1 A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN = 0 to
14V, IO= IOmax ; See Test Configurations)
All 10 mAp-p
Input Ripple Rejection (120Hz) All -65 dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part
of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum
safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating
of 4A (see Safety Considerations section) in the positive input lead. Based on the information provided in this data sheet on inrush
energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s
data sheet for further information.
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 3
Electrical Specifications (continued)
Parameter Device Symb
ol
Min Typ Max Unit
Output Voltage Set-point (with 0.5% tolerance for external
resistor used to set output voltage) All VO, set -1.5 +1.5 % VO, set
Output Voltage (Over all operating input voltage, resistive load,
and temperature conditions until end of life) All VO, set -2.5 ⎯ +2.5 % VO, set
Adjustment Range (selected by an external resistor)
(Some output voltages may not be possible depending on the
input voltage – see Feature Descriptions Section)
All VO 0.6 5.5 Vdc
Remote Sense Range All 0.5 Vdc
Output Regulation (for VO ≥ 2.5Vdc)
Line (VIN=VIN, min to VIN, max) All
⎯ +0.4 % VO, set
Load (IO=IO, min to IO, max) All
⎯ 10 mV
Output Regulation (for VO < 2.5Vdc)
Line (VIN=VIN, min to VIN, max) All
⎯ 10 mV
Load (IO=IO, min to IO, max) All
⎯ 5 mV
Temperature (Tref=TA, min to TA, max) All
⎯ 1 % VO, set
Output Ripple and Noise on nominal output
(VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 10 μF ceramic
ca
p
acitors)
Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 30 60 mVpk-pk
RMS (5Hz to 20MHz bandwidth) All 10 20 mVrms
External Capacitance1
Without the Tunable LoopTM
ESR ≥ 1 mΩ All CO 22 ⎯ 47 μF
With the Tunable LoopTM
ESR ≥0.15 mΩ All
CO, 22 ⎯ 1000 μF
ESR ≥ 10 mΩ All
CO, 22 ⎯ 3000 μF
Output Current (in either sink or source mode) All Io 0 2 Adc
Output Current Limit Inception (Hiccup Mode)
(current limit does not operate in sink mode) All IO, lim 180 % Io,max
Output Short-Circuit Current All IO, s/c 140 mA
(VO≤250mV) ( Hiccup Mode )
Efficiency VO,set = 0.6Vdc η 69.3 %
VIN= 12Vdc, TA=25°C VO, set = 1.2Vdc η
82.2 %
IO=IO, max , VO= VO,set V
O,set = 1.8Vdc η
87.4 %
V
O,set = 2.5Vdc η
89.4 %
V
O,set = 3.3Vdc η
91.9 %
V
O,set = 5.0Vdc η
93.8 %
Switching Frequency All fsw ⎯ 600 ⎯ kHz
1 External capacitors may require using the new Tunable LoopTM feature to ensure that the module is stable as well as getting the best
transient response. See the Tunable LoopTM section for details.
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 4
General Specifications
Parameter Device Min Typ Max Unit
Calculated MTBF (IO=0.8IO, max, TA=40°C) Telecordia Issue 2 Method 1
Case 3 APXS 26,121,938 Hours
Weight
⎯ 0.8 (0.0282) ⎯ g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.
Parameter Device Symbol Min Typ Max Unit
On/Off Signal Interface
(VIN=VIN, min to VIN, max ; open collector or equivalent,
Signal referenced to GND)
Device Code with no suffix – Negative Logic (See Ordering
Information)
(On/OFF pin is open collector/drain logic input with
external pull-up resistor; signal referenced to GND)
Logic High (Module OFF)
Input High Current All IIH — — 1 mA
Input High Voltage All VIH 3 — VIN, max Vdc
Logic Low (Module ON)
Input low Current All IIL — — 10 μA
Input Low Voltage All VIL -0.2 — 0.3 Vdc
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then input power is
applied (delay from instant at which VIN = VIN, min until Vo =
10% of Vo, set)
All Tdelay — 5 — msec
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at
which Von/Off is enabled until Vo = 10% of Vo, set)
All Tdelay — 5.2 — msec
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set) All Trise — 1.4 — msec
Output voltage overshoot (TA = 25oC 3.0 % VO, set
VIN= VIN, min to VIN, max,IO = IO, min to IO, max)
With or without maximum external capacitance
Over Temperature Protection All Tref 140 °C
(See Thermal Considerations section)
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 5
Feature Specifications (cont.)
Parameter Device Symbol Min Typ Max Units
Input Undervoltage Lockout
Turn-on Threshold All 2.95 Vdc
Turn-off Threshold All 2.8 Vdc
Hysteresis All
0.2 Vdc
PGOOD (Power Good)
Signal Interface Open Drain, Vsupply ≤ 5VDC
Overvoltage threshold for PGOOD 112.5 %VO, set
Undervoltage threshold for PGOOD 87.5 %VO, set
Pulldown resistance of PGOOD pin All 30 70 Ω
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 6
Characteristic Curves
The following figures provide typical characteristics for the PNVX002A0X-SRZ (0.6V, 2A) at 25oC.
EFFICIENCY, η (%)
55
60
65
70
75
80
85
90
0 0.4 0.8 1.2 1.6 2
Vin=14V
Vin=12V
Vin=3V
OUTPUT CURRENT, Io (A)
1.5
1.7
1.9
2.1
45 55 65 75 85
NC
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 1. Converter Efficiency versus Output Current. Figure 2. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (1Adiv) VO (V) (100mV/div)
TIME, t (2μs/div) TIME, t (500μs /div)
Figure 3. Typical output ripple and noise (VIN = 12V, Io = Io,max). Figure 4. Transient Response to Dynamic Load Change
from 0% to 50% to 0% .
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
VO (V) (200mV/div) VON/OFF (V) (5V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (200mV/div) VIN (V) (5V/div)
TIME, t (5ms/div) TIME, t (5ms/div)
Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max,
Vin=12V,Cext= 22uF).
Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io
= Io,max).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 7
Characteristic Curves
The following figures provide typical characteristics for the PNVX002A0X-SRZ (1.2V, 2A) at 25oC.
EFFICIENCY, η (%)
65
70
75
80
85
90
95
1
00
00.40.81.21.62
Vin=14V
Vin=3V
Vin=12V
OUTPUT CURRENT, Io (A)
1.5
1.7
1.9
2.1
45 55 65 75 85
NC
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 7. Converter Efficiency versus Output Current. Figure 8. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (1Adiv) VO (V) (100mV/div)
TIME, t (2μs/div) TIME, t (500μs /div)
Figure 9. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 10. Transient Response to Dynamic Load Change from
0% to 50% to 0%.
OUTPUT
VOLTAGE
ON/OFF
VOLTAGE
VO (V) (500mV/div) VON/OFF (V) (5V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (500mV/div) VIN (V) (5V/div)
TIME, t (5ms/div) TIME, t (5ms/div)
Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max,
Vin=12V,Cext= 22uF).
Figure 12. Typical Start-up Using Input Voltage (VIN = 12V,
Cext= 22uF, Io = Io,max).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 8
Characteristic Curves
The following figures provide typical characteristics for the PNVX002A0X-SRZ (1.8V, 2A) at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
1
00
0 0.4 0.8 1.2 1.6 2
Vin=14V
Vin=12V
Vin=3V
OUTPUT CURRENT, Io (A)
1.5
1.7
1.9
2.1
45 55 65 75 85
NC
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 13. Converter Efficiency versus Output Current. Figure 14. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (1Adiv) VO (V) (100mV/div)
TIME, t (2μs/div) TIME, t (500μs /div)
Figure 15. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 16. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (500mV/div) VON/OFF (V) (5V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO(V) (500mV/div) VIN (V) (5V/div)
TIME, t (5ms/div) TIME, t (5ms/div)
Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max,
Vin=12V,Cext= 22uF,).
Figure 18. Typical Start-up Using Input Voltage (VIN = 12V,
Cext= 22uF, Io = Io,max).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 9
Characteristic Curves
The following figures provide typical characteristics for the PNVX002A0X-SRZ (2.5V, 2A) at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
0 0.4 0.8 1.2 1.6 2
Vin=14V
Vin=12V
Vin=3.3V
OUTPUT CURRENT, Io (A)
1.5
1.7
1.9
2.1
45 55 65 75 85
NC
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 19. Converter Efficiency versus Output Current. Figure 20. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (1Adiv) VO (V) (100mV/div)
TIME, t (2μs/div) TIME, t (500μs /div)
Figure 21. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 22. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (1V/div) VON/PFF (V) (5V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (5ms/div) TIME, t (5ms/div)
Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max,
Vin=12V,Cext= 22uF ).
Figure 24. Typical Start-up Using Input Voltage (VIN = 12V,
Cext= 22 uF, Io = Io,max).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 10
Characteristic Curves
The following figures provide typical characteristics for the PNVX002A0X-SRZ (3.3V, 2A) at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
0 0.4 0.8 1.2 1.6 2
Vin=14V
Vin=12V
Vin=4.5V
OUTPUT CURRENT, Io (A)
1.5
1.7
1.9
2.1
45 55 65 75 85
NC
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 25. Converter Efficiency versus Output Current. Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (1Adiv) VO (V) (100mV/div)
TIME, t (1μs/div) TIME, t (500μs /div)
Figure 27. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 28. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
OUTPUT VOLTAGE ON/OFF VOLTAGE
VO (V) (1V/div) VON?OFF (V) (5V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
VO (V) (1V/div) VIN (V) (5V/div)
TIME, t (5ms/div) TIME, t (5ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max,
Vin=12V,Cext= 22uF)
Figure 30. Typical Start-up Using Input Voltage (VIN = 12V,
Cext= 22 uF, Io = Io,max).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 11
Characteristic Curves
The following figures provide typical characteristics for the PNVX002A0X-SRZ (5V, 2A) at 25oC.
EFFICIENCY, η (%)
70
75
80
85
90
95
100
0 0.4 0.8 1.2 1.6 2
Vin=14V
Vin=12V
Vin=6.5V
OUTPUT CURRENT, Io (A)
1.5
1.7
1.9
2.1
45 55 65 75 85
NC
OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC
Figure 31. Converter Efficiency versus Output Current. Figure 32. Derating Output Current versus Ambient
Temperature and Airflow.
OUTPUT VOLTAGE
VO (V) (20mV/div)
OUTPUT
CURRENT
,
OUTPUT
VOLTAGE
IO (A) (1Adiv) VO (V) (100mV/div)
TIME, t (2μs/div) TIME, t (500μs /div)
Figure 33. Typical output ripple and noise (VIN = 12V, Io =
Io,max).
Figure 34. Transient Response to Dynamic Load Change
from 0% to 50% to 0%.
OUTPUT VOLTAG E ON/OFF VOLTAGE
VO (V) (2V/div) VON/OFF (V) (5V/div)
OUTPUT VOLTAGE INPUT VOLTAGE
Vo (V) (2V/div) VIN (V) (5V/div)
TIME, t (5ms/div) TIME, t (5ms/div)
Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max,
Vin=12V,Cext= 22uF).
Figure 36. Typical Start-up Using Input Voltage (VIN = 12V,
Io = Io,max, Cext= 22uF).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 12
Test Configurations
TO OSCILLOSCOPE CURRENT PROBE
LTEST
1μH
BATTERY
CS 1000μF
Electrolytic
E.S.R.<0.1Ω
@ 20°C 100kHz
2x100μF
Tantalum
VIN(+)
COM
NOTE: Measure input reflected ripple current with a simulated
source inductance (LTEST) of 1μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
CIN
Figure 37. Input Reflected Ripple Current Test Setup.
NOTE: All voltage measurements to be taken at the module
terminals, a s shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Vo+
COM
0.1uF
RESISTIVE
LOAD
SCOP E U SING
BNC SOCKET
COPPER STRIP
GROUND PLANE
10uF
Figure 38. Output Ripple and Noise Test Setup.
VO
COM
VIN(+)
COM
RLOAD
Rcontact Rdistribution
Rcontact Rdistribution
Rcontact
Rcontact
Rdistribution
Rdistribution
VIN VO
NOTE: All voltage measurements to be taken at the module
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
Figure 39. Output Voltage and Efficiency Test Setup.
η =
VO. IO
VIN. IIN
x 100 %
Efficiency
Design Considerations
Input Filtering
The 12V DLynxTM 2A module should be connected to a
low ac-impedance source. A highly inductive source
can affect the stability of the module. An input
capacitance must be placed directly adjacent to the
input pin of the module, to minimize input ripple
voltage and ensure module stability.
To minimize input voltage ripple, ceramic capacitors
are recommended at the input of the module. Figure
40 shows the input ripple voltage for various output
voltages at 2A of load current with 1x10 µF or 1x22 µF
ceramic capacitors and an input of 5V. Figure 41
shows the input ripple voltage for an input of 12V
Input Ripple Voltage (mVp-p)
20
30
40
50
60
70
80
90
0.5 1 1.5 2 2.5 3 3.5
1x10uF
1x22uF
Output Voltage (Vdc)
Figure 40. Input ripple voltage for various output
voltages with 1x10 µF or 1x22 µF ceramic capacitors
at the input (2A load). Input voltage is 5V. Scope BW:
20MHz.
Input Ripple Voltage (mVp-p)
20
30
40
50
60
70
80
90
100
110
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
1x10uF
1x22uF
Output Voltage (Vdc)
Figure 41. Input ripple voltage for various output
voltages with 1x10 µF or 1x22 µF ceramic capacitors
at the input (2A load). Input voltage is 12V. Scope BW:
20MHz
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 13
Output Filtering
The 12V DLynxTM 2A modules are designed for low output ripple
voltage and will meet the maximum output ripple specification
with 0.1 µF ceramic and 22µF ceramic capacitors at the output
of the module. However, additional output filtering may be
required by the system designer for a number of reasons. First,
there may be a need to further reduce the output ripple and
noise of the module. Second, the dynamic response
characteristics may need to be customized to a particular load
step change.
To reduce the output ripple and improve the dynamic response
to a step load change, additional capacitance at the output can
be used. Low ESR polymer and ceramic capacitors are
recommended to improve the dynamic response of the
module. A minimum 22uF External Cap must be used. Figure
42 provides output ripple information for different external
capacitance values at various Vo and for a load current of 2A.
For stable operation of the module, limit the capacitance to less
than the maximum output capacitance as specified in the
electrical specification table. Optimal performance of the
module can be achieved by using the Tunable LoopTM feature
described later in this data sheet.
0
2
4
6
8
10
12
14
0.51.52.53.54.5
Output Voltage(Volts)
Ripple(mVp-p)
1x22uF External Cap
1x47uF External Cap
2x47uF External cap
Figure 42. Output ripple voltage for various output voltages
with external 1x22 µF, 1x47 µF or 2x47 µF ceramic capacitors
at the output (2A load). Input voltage is 12V.
Safety Considerations
For safety agency approval the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standards, i.e., UL
60950-1 2nd, CSA C22.2 No. 60950-1-07, DIN EN 60950-1:2006
+ A11 (VDE0805 Teil 1 + A11):2009-11; EN 60950-1:2006 +
A11:2009-03.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the input must
meet SELV requirements. The power module has extra-low
voltage (ELV) outputs when all inputs are ELV.
The input to these units is to be provided with a slow-
blow fuse with a maximum rating of 4A in the positive
input lead.
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 14
Feature Descriptions
Remote Enable
The 12V DLynxTM 2A power modules feature an On/Off pin for
remote On/Off operation. Two On/Off logic options are
available. In the Positive Logic On/Off option, (device code
suffix “4” – see Ordering Information), the module turns ON
during a logic High on the On/Off pin and turns OFF during a
logic Low. With the Negative Logic On/Off option, (no device
code suffix, see Ordering Information), the module turns OFF
during logic High and ON during logic Low. The On/Off signal is
always referenced to ground. For either On/Off logic option,
leaving the On/Off pin disconnected will turn the module ON
when input voltage is present.
For positive logic modules, the circuit configuration for using
the On/Off pin is shown in Figure 43. Contact GE Energy
regarding availability of positive logic module
Q1
VIN+
GND
+
PWM Enable
ON/OFF
V
ON/OFF
_
MOD ULE
I
Rpullup
ON/OFF
10K
Q2
10K
50K
50K
Q3
10K
10K
Figure 43. Circuit configuration for using positive On/Off
logic.
For negative logic On/Off modules, the circuit configuration is
shown in Fig. 44.
Q1
ON/OFF
VIN+
GND
+
PWM Enable
VON/OFF
_
MODULE
I
Rpullup
ON/OFF
10K
Q2
10K
Figure 44. Circuit configuration for using negative On/Off
logic.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current limiting
continuously. At the point of current-limit inception, the
unit enters hiccup mode. The unit operates normally
once the output current is brought back into its specified
range.
Overtemperature Protection
To provide protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit will
shutdown if the overtemperature threshold of 140oC is
exceeded at the thermal reference point Tref . The
thermal shutdown is not intended as a guarantee that
the unit will survive temperatures beyond its rating.
Once the unit goes into thermal shutdown it will then
wait to cool before attempting to restart.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, the module operation is disabled. The module will
begin to operate at an input voltage above the
undervoltage lockout turn-on threshold.
Output Voltage Programming
The output voltage of the 12V DLynxTM 2A modules can
be programmed to any voltage from 0.6dc to 5.5Vdc by
connecting a resistor between the Trim and GND pins of
the module. Certain restrictions apply on the output
voltage set point depending on the input voltage. These
are shown in the Output Voltage vs. Input Voltage Set
Point Area plot in Fig. 45. The Lower Limit curve shows
that for output voltages of 2.4V and higher, the input
voltage needs to be larger than the minimum of 3V.
0
2
4
6
8
10
12
14
16
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
Output Voltage (V)
Input Voltage (v)
Figure 45. Output Voltage vs. Input Voltage Set Point
Area plot showing limits where the output voltage can
be set for different input voltages.
Without an external resistor between Trim and GND pins,
the output of the module will be 0.6Vdc. To calculate the
value of the trim resistor, Rtrim for a desired output
voltage, use the following equation:
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 15
()
Ω
−
=k
Vo
Rtrim
6.0
0.6
Rtrim is the external resistor in kΩ
Vo is the desired output voltage.
Table 1 provides Rtrim values required for some common
output voltages.
Table 1
VO, set (V) Rtrim (KΩ)
1.0 15
1.2 10
1.5 6.67
1.8 5
2.5 3.16
3.3 2.22
5.0 1.36
By using a ±0.5% tolerance trim resistor with a TC of ±100ppm,
a set point tolerance of ±1.5% can be achieved as specified in
the electrical specification.
Remote Sense
The 12V DLynxTM 2A power modules have a Remote Sense
feature to minimize the effects of distribution losses by
regulating the voltage at the SENSE pin. The voltage between
the SENSE pin and VOUT pin must not exceed 0.5V. Note that
the output voltage of the module cannot exceed the specified
maximum value. This includes the voltage drop between the
SENSE and Vout pins. When the Remote Sense feature is not
being used, connect the SENSE pin to the VOUT pin.
VO(+)
TRIM
GND
Rtr i m
LOAD
VIN
(+)
ON/OFF
SENSE
Figure 46. Circuit configuration for programming output
voltage using an external resistor.
Voltage Margining
Output voltage margining can be implemented in the 12V
DLynxTM 2A modules by connecting a resistor, Rmargin-up, from
the Trim pin to the ground pin for margining-up the output
voltage and by connecting a resistor, Rmargin-down, from the Trim
pin to output pin for margining-down. Figure 10 shows the
circuit configuration for output voltage margining. The POL
Programming Tool, available at www.lineagepower.com under
the Design Tools section, also calculates the values of Rmargin-up
and Rmargin-down for a specific output voltage and % margin.
Please consult your local GE Energy technical
representative for additional details.
Vo
MODULE
GND
Trim
Q1
Rtrim
Rmargin-up
Q2
Rmargin-down
Figure 47. Circuit Configuration for margining Output
voltage.
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 16
Monotonic Start-up and Shutdown
The 12V DLynxTM 2A modules have monotonic start-up and
shutdown behavior for any combination of rated input voltage,
output current and operating temperature range.
Startup into Pre-biased Output
The 12V DLynxTM 2A modules can start into a prebiased output
as long as the prebias voltage is 0.5V less than the set output
voltage.
Power Good
The 12V DLynxTM 2A modules provide a Power Good (PGOOD)
signal that is implemented with an open-drain output to
indicate that the output voltage is within the regulation limits of
the power module. The PGOOD signal will be de-asserted to a
low state if any condition such as overtemperature, overcurrent
or loss of regulation occurs that would result in the output
voltage going ±12.5% outside the setpoint value. The PGOOD
terminal should be connected through a pullup resistor
(suggested value 100KΩ) to a source of 5VDC or lower.
Tunable LoopTM
The 12V DLynxTM 2A modules have a new feature that
optimizes transient response of the module called Tunable
LoopTM.
External capacitors are usually added to the output of the
module for two reasons: to reduce output ripple and noise (see
Fig. 42) and to reduce output voltage deviations from the
steady-state value in the presence of dynamic load current
changes. Adding external capacitance however affects the
voltage control loop of the module, typically causing the loop to
slow down with sluggish response. Larger values of external
capacitance could also cause the module to become unstable.
The Tunable LoopTM allows the user to externally adjust the
voltage control loop to match the filter network connected to
the output of the module. The Tunable LoopTM is implemented
by connecting a series R-C between the SENSE and TRIM pins of
the module, as shown in Fig. 48. This R-C allows the user to
externally adjust the voltage loop feedback compensation of
the module.
MODULE
VOUT
SENSE
TRIM
GND
RTUNE
CTUNE
RTrim
C O
Figure. 48. Circuit diagram showing connection of RTUME and
CTUNE to tune the control loop of the module.
Recommended values of RTUNE and CTUNE for different
output capacitor combinations are given in Tables 2 and
3. Table 2 shows the recommended values of RTUNE and
CTUNE for different values of ceramic output capacitors up
to 470uF that might be needed for an application to
meet output ripple and noise requirements. Selecting
RTUNE and CTUNE according to Table 2 will ensure stable
operation of the module.
In applications with tight output voltage limits in the
presence of dynamic current loading, additional output
capacitance will be required. Tables 3,4 and 5 list
recommended values of RTUNE and CTUNE in order to meet
2% output voltage deviation limits for some common
output voltages in the presence of a 1A to 2A step
change (50% of full load), for input voltages of 12V, 5V
and 3.3V respectively.
Please contact your GE Energy technical representative
to obtain more details of this feature as well as for
guidelines on how to select the right value of external R-
C to tune the module for best transient performance and
stable operation for other output capacitance values or
input voltages other than 12V.
Table 2. General recommended values of of RTUNE and
CTUNE for Vin=12V/5V/3.3V and various external
ceramic capacitor combinations.
Co 1x47μF2x47μF 3x47μF 4x47μF10x47μF
RTUNE 220 150 100 100 100
CTUNE 3900pF 10nF 18nF 18nF 22nF
Table 3. Recommended values of RTUNE and CTUNE to
obtain transient deviation of ≤2% of Vout for a 1A step
load with Vin=12V
o5V 3.3V 2.5V 1.8V 1.2V 0.6
V
Co 1x22μF1x47μF2x47μF 2x47μF 3x47μF330μF
Polymer
RTUNE 220 220 150 150 100 100
CTUNE 2200pF 3900pF 10nF 10nF 18nF 68nF
ΔV 81mV 61mV 35mV 34mV 23mV 12mV
Table 4. Recommended values of RTUNE and CTUNE to
obtain transient deviation of ≤2% of Vout for a 1A step
load with Vin=5V
o3.3V 2.5V 1.8V 1.2V 0.6V
Co 1x47μF2x47μF2x47μF 3x47μF 330μF
Polymer
RTUNE 220 150 150 100 100
CTUNE 3900pF 10nF 10nF 18nF 68nF
ΔV 62mV 35mV 34mV 23mV 12mV
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 17
Table 5. Recommended values of RTUNE and CTUNE to obtain
transient deviation of ≤2% of Vout for a 1A step load with
Vin=3.3V
Vo 2.5V 1.8V 1.2V 0.6V
Co 3x47μF 2x47μF 3x47μF 330μF
Polymer
RTUNE 100 150 100 100
CTUNE 18nF 10nF 18nF 68nF
ΔV 48mV 34mV 23mV 12mV
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 18
Thermal Considerations
Power modules operate in a variety of thermal environments;
however, sufficient cooling should always be provided to help
ensure reliable operation.
Considerations include ambient temperature, airflow, module
power dissipation, and the need for increased reliability. A
reduction in the operating temperature of the module will result
in an increase in reliability. The thermal data presented here is
based on physical measurements taken in a wind tunnel. The
test set-up is shown in Figure 49. The preferred airflow
direction for the module is in Figure 50.
A
i
r
flow
x
Power Module
W
ind Tunnel
PWBs
12.7_
(0.50)
76.2_
(3.0)
Probe Location
for measuring
airflow and
ambient
temperature
25.4_
(1.0)
Figure 49. Thermal Test Setup.
The thermal reference points, Tref used in the specifications are
also shown in Figure 50. For reliable operation the
temperatures at these points should not exceed 125oC. The
output power of the module should not exceed the rated power
of the module (Vo,set x Io,max).
Please refer to the Application Note “Thermal Characterization
Process For Open-Frame Board-Mounted Power Modules” for a
detailed discussion of thermal aspects including maximum
device temperatures.
Figure 50. Preferred airflow direction and location of
hot-spot of the module (Tref).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 19
Example Application Circuit
Requirements:
Vin: 12V
Vout: 1.8V
Iout: 1A max., worst case load transient is from 1A to 1.5A
ΔVout: 1.5% of Vout (27mV) for worst case load transient
Vin, ripple 1.5% of Vin (180mV, p-p)
CI1 1x0.1μF/16V ceramic capacitor (0402 size)
CI2 1x10μF/16V ceramic capacitor (e.g. TDK C Series)
CI2 100μF/16V bulk electrolytic
CO1 1x0.1μF/16V ceramic capacitor (0402 size)
CO1 2x47μF/6.3V ceramic capacitor (e.g. TDK C Series, Murata GRM32ER60J476ME20)
CTune 5600pF ceramic capacitor
RTune 150 ohms SMT resistor
RTrim 5kΩ SMT resistor (recommended tolerance of 0.1%)
MODULE
VOUT
SENSE
GND
TRIM
RTUNE
CTUNE
RTrim
VIN
CO1
+CI3 CI1
Vin+ Vout+
ON/OFF
Q3
CI2 CO2
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 20
Mechanical Outline
Dimensions are in millimeters and (inches).
Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]
x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 21
Recommended Pad Layout
Dimensions are in millimeters and (inches).
Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated]
x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.)
PIN FUNCTION
1 ON/OFF
2 VIN
3 GND
4 VOUT
5 SENSE
6 TRIM
7 GND
8 NC
9 NC
10 PGOOD
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 22
Packaging Details
The 12V DLynxTM 2A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 400 modules per reel.
All Dimensions are in millimeters and (in inches).
Reel Dimensions:
Outside Dimensions: 330.2 mm (13.00)
Inside Dimensions: 177.8 mm (7.00”)
Tape Width: 24.00 mm (0.945”)
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
June 24, 2013 ©2012 General Electric Company. All rights reserved. Page 23
Surface Mount Information
Pick and Place
The 12V DLynxTM 2A modules use an open frame construction
and are designed for a fully automated assembly process. The
modules are fitted with a label designed to provide a large
surface area for pick and place operations. The label meets all
the requirements for surface mount processing, as well as
safety standards, and is able to withstand reflow temperatures
of up to 300oC. The label also carries product information such
as product code, serial number and the location of
manufacture.
Nozzle Recommendations
The module weight has been kept to a minimum by using open
frame construction. Variables such as nozzle size, tip style,
vacuum pressure and placement speed should be considered
to optimize this process. The minimum recommended inside
nozzle diameter for reliable operation is 3mm. The maximum
nozzle outer diameter, which will safely fit within the allowable
component spacing, is 7 mm.
Bottom Side / First Side Assembly
This module is not recommended for assembly on the bottom
side of a customer board. If such an assembly is attempted,
components may fall off the module during the second reflow
process. If assembly on the bottom side is planned, please
contact GE Energy for special manufacturing process
instructions.
Only ruggedized (-D version) modules with additional epoxy will
work with a customer’s first side assembly. For other versions,
first side assembly should be avoided
Lead Free Soldering
The 12V DLynxTM 2A modules are lead-free (Pb-free) and RoHS
compliant and fully compatible in a Pb-free soldering process.
Failure to observe the instructions below may result in the
failure of or cause damage to the modules and can adversely
affect long-term reliability.
Pb-free Reflow Profile
Power Systems will comply with J-STD-020 Rev. C
(Moisture/Reflow Sensitivity Classification for
Nonhermetic Solid State Surface Mount Devices) for both
Pb-free solder profiles and MSL classification procedures.
This standard provides a recommended forced-air-
convection reflow profile based on the volume and
thickness of the package (table 4-2). The suggested Pb-
free solder paste is Sn/Ag/Cu (SAC). A 6 mil thick stencil is
recommended.
For questions regarding Land grid array(LGA) soldering, solder
volume; please contact GE Energy for special manufacturing
process instructions.
The recommended linear reflow profile using Sn/Ag/Cu
solder is shown in Fig. 51. Soldering outside of the
recommended profile requires testing to verify results
and performance.
MSL Rating
The 12V DLynxTM 2A modules have a MSL rating of 2a.
Storage and Handling
The recommended storage environment and handling
procedures for moisture-sensitive surface mount
packages is detailed in J-STD-033 Rev. A (Handling,
Packing, Shipping and Use of Moisture/Reflow Sensitive
Surface Mount Devices). Moisture barrier bags (MBB)
with desiccant are required for MSL ratings of 2 or
greater. These sealed packages should not be broken
until time of use. Once the original package is broken,
the floor life of the product at conditions of ≤ 30°C and
60% relative humidity varies according to the MSL rating
(see J-STD-033A). The shelf life for dry packed SMT
packages will be a minimum of 12 months from the bag
seal date, when stored at the following conditions: < 40°
C, < 90% relative humidity.
Per J-STD-020 Rev. C
0
50
100
150
200
250
300
Reflow Time (Seconds)
Reflow Temp (°C)
Heating Zone
1°C/Second
Peak Temp 260°C
* Min. Time Above 235°C
15 Seconds
*Time Above 217°C
60 Seconds
Cooling
Zone
Figure 51. Recommended linear reflow profile using
Sn/Ag/Cu solder.
Post Solder Cleaning and Drying Considerations
Post solder cleaning is usually the final circuit-board
assembly process prior to electrical board testing. The
result of inadequate cleaning and drying can affect both
the reliability of a power module and the testability of the
finished circuit-board assembly. For guidance on
appropriate soldering, cleaning and drying procedures,
refer to Board Mounted Power Modules: Soldering and
Cleaning Application Note (AN04-001).
GE Energy Datasheet
2A DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14Vdc input; 0.6Vdc to 5.5Vdc output; 2A Output Current
Contact Us
For more information, call us at
USA/Canada:
+1 888 546 3243, or +1 972 244
9288
Asia-Pacific:
+86.021.54279977*808
Europe, Middle-East and Africa:
+49.89.878067-280
India:
+91.80.28411633
www.ge.com/powerelectronics
June 24, 2013 ©2012 General Electric Company. All rights reserved. Version 1.1
Ordering Information
Please contact your GE Energy Sales Representative for pricing, availability and optional features.
Table 6. Device Codes
Device Code Input
Voltage Range
Output
Voltage
Output
Current
On/Off
Logic Sequencing Comcodes
PNVX002A0X3-SRZ 3 – 14Vdc 0.6 – 5.5 Vdc 2A Negative No 150025978
PNVX002A0X3-SRDZ* 3 – 14Vdc 0.6 – 5.5 Vdc 2A Negative No TBD
-Z refers to RoHS compliant parts
* Check availability with GE Sales
Table 7. Coding Scheme
Package Family. Sequencing Output
current
Output
voltage
On/Off
logic
Remote
Sense
Options ROHS
Compliance
P NV X 002A0 X 4 3 -SR -D* Z
P : Pico
U : Micro
M : Mega
G : Giga
A : Pre-
4G
NV:
DLynx
analog
open
frame.
T: with EZ-
SEQUENCE
X: without EZ-
SEQUENCE
2.0A X =
programmable
output
4 =
positive
No entry =
negative
3 =
Remote
Sense
No entry
=
negative
S = Surface
Mount
R =
Tape&Reel
D = 105C
operating
ambient, 40G
operating
shock as per
MIL Std 810F
Z = ROHS6