MIC5330-SOYML - Micrel

MIC5330

Dual 300mA µCap LDO in 2mm x 2mm MLF®

ULDO is a trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

General Description

The MIC5330 is a tiny Dual Ultra Low Dropout

(ULDO™) linear regulator ideally suited for portable

electronics due to its high power supply ripple

rejection (PSRR) and ultra low output noise. The

MIC5330 integrates two high performance 300mA

ULDOs into a tiny 2mm x 2mm leadless MLF®

package, which provides exceptional thermal package

characteristics.

The MIC5330 is a µCap design which enables

operation with very small ceramic output capacitors

for stability, thereby reducing required board space

and component cost. The combination of extremely

low drop out voltage, high power supply rejection and

exceptional thermal package characteristics makes it

ideal for powering RF/noise sensitive circuitry, cellular

phone camera modules, imaging sensors for digital

still cameras, PDAs, MP3 players and WebCam

applications.

The MIC5330 ULDO™ is available in fixed output

voltages in the tiny 8-pin 2mm x 2mm leadless MLF®

package which occupies less than half the board area

of a single SOT-6 package. Additional voltage options

are available. For more information, contact Micrel

marketing department.

Data sheets and support documentation are found on

the Micrel web site:www.micrel.com.

Features

• 2.3V to 5.5V input voltage range

• Ultra low dropout voltage ULDO™ 75mV @ 300mA

• High PSRR - >70dB @ 1KHz

• Ultra-low output noise: 30µVRMS

• ±2% initial output accuracy

• Tiny 8-pin 2mm x 2mm MLF® leadless package

• Excellent Load/Line transient response

• Fast start up time: 30µs

• 300mA output current per LDO

• Thermal shutdown protection

• Low quiescent current: 75µA per output

• Current limit protection

Applications

• Mobile phones

• PDAs

• GPS receivers

• Portable electronics

• Portable media players

• Digital still and video cameras

Typical Application

RF Power Supply Circuit

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Block Diagram

MIC5330 Fixed Block Diagram

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Ordering Information

Functional

Part number

Ordering

Part Number

Marking1

VOUT1/VOUT22

Junction

Temperature Range

Package3

MIC5330-1.8/1.5YML MIC5330-GFYML EGF 1.8V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-1.8/1.8YML MIC5330-GGYML EGG 1.8V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-1.8/1.6YML MIC5330-GWYML EGW 1.8V/1.6V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.5/1.8YML MIC5330-JGYML EJG 2.5V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.5/2.5YML MIC5330-JJYML EJJ 2.5V/2.5V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.6/1.85YML MIC5330-KDYML EKD 2.6V/1.85 –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.6/1.8YML MIC5330-KGYML EKG 2.6V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.7/2.7YML MIC5330-LLYML ELL 2.7V/2.7V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.8/1.5YML MIC5330-MFYML EMF 2.8V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.8/1.8YML MIC5330-MGYML EMG 2.8V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.8/2.6YML MIC5330-MKYML EMK 2.8V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.8/2.8YML MIC5330-MMYML EMM 2.8V/2.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.85/1.85YML MIC5330-NDYML END 2.85V/1.85V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.85/2.6YML MIC5330-NKYML ENK 2.85V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.85/2.85YML MIC5330-NNYML ENN 2.85V/2.85V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.9/1.5YML MIC5330-OFYML EOF 2.9V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.9/1.8YML MIC5330-OGYML EOG 2.9V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-2.9/2.9YML MIC5330-OOYML EOO 2.9V/2.9V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.0/1.8YML MIC5330-PGYML EPG 3.0V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.0/2.5YML MIC5330-PJYML EPJ 3.0V/2.5V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.0/2.6YML MIC5330-PKYML EPK 3.0V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.0/2.8YML MIC5330-PMYML EPM 3.0V/2.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.0/2.85YML MIC5330-PNYML EPN 3.0V/2.85V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.0/3.0YML MIC5330-PPYML EPP 3.0V/3.0V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/1.5YML MIC5330-SFYML ESF 3.3V/1.5V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/1.8YML MIC5330-SGYML ESG 3.3V/1.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/2.5YML MIC5330-SJYML ESJ 3.3V/2.5V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/2.6YML MIC5330-SKYML ESK 3.3V/2.6V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/2.8YML MIC5330-SMYML ESM 3.3V/2.8V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/2.85YML MIC5330-SNYML ESN 3.3V/2.85V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/2.9YML MIC5330-SOYML ESO 3.3V/2.9V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/3.0YML MIC5330-SPYML ESP 3.3V/3.0V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/3.2YML MIC5330-SRYML ESR 3.3V/3.2V –40°C to +125°C 8-Pin 2x2 MLF®

MIC5330-3.3/3.3YML MIC5330-SSYML ESS 3.3V/3.3V –40°C to +125°C 8-Pin 2x2 MLF®

Notes:

1. Over bar ( ¯ ) symbol may not be to scale.

2. Other voltage options available. Contact Micrel for more details.

3. MLF® is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.

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Pin Configuration

8-Pin 2mm x 2mm MLF (ML)

Top View

Pin Description

Pin Number

MLF-8

Pin Name

Pin Function

1 VIN Supply Input.

2 GND Ground

3 BYP

Reference Bypass: Connect external 0.1µF to GND to reduce output noise.

May be left open when bypass capacitor is not required.

4 EN2

Enable Input (regulator 2). Active High Input. Logic High = On; Logic Low = Off;

Do not leave floating.

5 EN1

Enable Input (regulator 1). Active High Input. Logic High = On; Logic Low = Off;

Do not leave floating.

6 NC Not internally connected

7 VOUT2 Regulator Output – LDO2

8 VOUT1 Regulator Output – LDO1

– EP Exposed Pad. Connect EP to GND.

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Absolute Maximum Ratings(1)

Supply Voltage (VIN).....................................0V to +6V

Enable Input Voltage (VEN)...........................0V to +6V

Power Dissipation...........................Internally Limited(3)

Lead Temperature (soldering, 3sec ...................260°C

Storage Temperature (TS)................. -65°C to +150°C

ESD Rating(4) .........................................................2kV

Operating Ratings(2)

Supply voltage (VIN)............................... +2.3V to +5.5V

Enable Input Voltage (VEN).............................. 0V to VIN

Junction Temperature ......................... -40°C to +125°C

Junction Thermal Resistance

MLF-8 (θJA) ............................................... 90°C/W

Electrical Characteristics(5)

VIN = EN1 = EN2 = VOUT + 1.0V; higher of the two regulator outputs, IOUTLDO1 = IOUTLDO2 = 100µA; COUT1 = COUT2 = 1µF;

CBYP = 0.1µF; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +125°C, unless noted.

Parameter Conditions Min Typ Max Units

Variation from nominal VOUT -2.0 +2.0 % Output Voltage Accuracy

Variation from nominal VOUT; –40°C to +125°C -3.0 +3.0 %

Line Regulation VIN = VOUT + 1V to 5.5V; IOUT = 100µA 0.02 0.3

0.6

%/V

Load Regulation IOUT = 100µA to 300mA 0.5 %

Dropout Voltage (Note 6) IOUT = 100µA

IOUT = 100mA

IOUT = 150mA

IOUT = 300mA

0.1

100

200

Ground Current EN1 = High; EN2 = Low; IOUT = 100µA to 300mA

EN1 = Low; EN2 = High; IOUT = 100µA to 300mA

EN1 = EN2 = High; IOUT1 = 300mA, IOUT2 = 300mA

150

120

200

µA

Ground Current in Shutdown EN1 = EN2 = 0V 0.01 2 µA

Ripple Rejection f = 1kHz; COUT = 1.0µF; CBYP = 0.1µF

f = 20kHz; COUT = 1.0µF; CBYP = 0.1µF

Current Limit VOUT = 0V 350 550 950 mA

Output Voltage Noise COUT = 1.0µF; CBYP = 0.1µF; 10Hz to 100kHz 30 µVRMS

Enable Inputs (EN1 / EN2)

Logic Low 0.2 V Enable Input Voltage

Logic High 1.1 V

VIL ≤ 0.2V 0.01 µA Enable Input Current

VIH ≥ 1.0V 0.01 µA

Turn on Time (See Timing Diagram)

Turn on Time (LDO1 and 2) COUT = 1.0µF; CBYP = 0.01µF 30 100 µs

Notes:

1. Exceeding the absolute maximum rating may damage the device.

2. The device is not guaranteed to function outside its operating rating.

3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable

power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.

4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.

5. Specification for packaged product only.

6. Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal VOUT. For outputs below

2.3V, the dropout voltage is the input to output differential with the minimum input voltage 2.3V.

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Typical Characteristics

-10

-20

-30

-70

-80

Power Supply

Rejection Ratio

FREQUENCY (kHz)

0.1 10 100 1,000

VIN = 3.4V

VOUT = 3V

COUT = 1µF

CBYP = 0.1µF

IOUT = 50mA

-40

-50

-60

-10

-20

-70

-80

Power Supply

Rejection Ratio

FREQUENCY (kHz)

0.1 10 100 1,000

VIN = 3.6V

VOUT = 3V

COUT = 1µF

CBYP = 0.1µF

IOUT = 150mA

-30

-40

-50

-60

-10

-20

-60

-70

-80

Power Supply

Rejection Ratio

FREQUENCY (kHz)

0.1 10 100 1,000

VIN = 3.9V

VOUT = 3V

COUT = 1µF

CBYP = 0.1µF

IOUT = 300mA

-30

-40

-50

05 0 100 150 200 250 300

OUTPUT CURRENT (mA)

Dropout Voltage

vs. Output Current

VOUT = 3V

COUT = 1µF

Ground Current

vs. Temperature

20 40 60 80

TEMPERATURE (°C)

100µA

100mA

50mA

150mA

VIN = VOUT + 1V

VOUT = 3V

COUT = 1µF

EN1 = VIN, EN2 = GND

300mA

2.70

2.75

2.80

2.85

2.90

3.05

3.10

3.15

3.20

Output Voltage

vs. Temperature

20 40 60 80

TEMPERATURE (°C)

2.95

3.00

VIN = EN1 = EN2

VOUT = 3V

COUT = 1µF

IOUT = 100µA

VIN = VOUT + 1V

2.7

2.8

2.9

3.1

3.2

3.3

05 0 100 150 200 250 300

OUTPUT CURRENT (mA)

3.0

Output Voltage

vs. Output Current

VIN = VOUT + 1V

VOUT = 3V

COUT = 1µF

0.5

1.5

2.5

3.5

1 234 5

INPUT VOLTAGE (V)

1.0

2.0

3.0

0.0

Output Voltage

vs. Input Voltage

VIN = VOUT + 1V

COUT = 1µF

100µA

150mA

300mA

Dropout Voltage

vs. Temperature

20 40 60 80

TEMPERATURE (°C)

10mA

50mA

100mA

150mA

100µA

VOUT = 3V

VIN = EN1 = EN2

COUT = 1µF

300mA

05 0 100 150 200 250 300

OUTPUT CURRENT (mA)

Ground Current

vs. Output Current

VIN = VOUT + 1V

VOUT = 3V

VEN1 = VEN2 = VIN

COUT1 = COUT2 = 1µF

400

420

440

460

480

500

520

540

560

580

600

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

INPUT VOLTAGE (V)

vs. Input Voltage

Current Limit

COUT = 1µF

VEN = VIN

0.001

0.01

0.1

Output Noise

Spectral Density

FREQUENCY (kHz)

0.10.01 10 100 1,000

VIN = 4V

VOUT = 3V

COUT = 1µF

CBYP = 0.1µF

ILOAD = 60mA

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Functional Characteristics

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Applications Information

Enable/Shutdown

The MIC5330 comes with dual active high enable pins

that allow each regulator to be enabled independently.

Forcing the enable pin low disables the regulator and

sends it into a “zero” off mode current state. In this

state, current consumed by the regulator goes nearly

to zero. Forcing the enable pin high enables the

output voltage. The active high enable pin uses

CMOS technology and the enable pin cannot be left

floating; a floating enable pin may cause an

indeterminate state on the output.

Input Capacitor

The MIC5330 is a high performance, high bandwidth

device. Therefore, it requires a well bypassed input

supply for optimal performance. A 1µF capacitor is

required from the input to ground to provide stability.

Low ESR ceramic capacitors provide optimal

performance at a minimum of space. Additional high

frequency capacitors, such as small valued NPO

dielectric type capacitors, help filter out high frequency

noise and are good practice in any RF based circuit.

Output Capacitor

The MIC5330 requires an output capacitor of 1µF or

greater to maintain stability. The design is optimized

for use with low ESR ceramic chip capacitors. High

ESR capacitors may cause high frequency oscillation.

The output capacitor can be increased, but

performance has been optimized for a 1µF ceramic

output capacitor and does not improve significantly

with larger capacitance.

X7R/X5R dielectric type ceramic capacitors are

recommended because of their temperature

performance. X7R type capacitors change

capacitance by 15% over their operating temperature

range and are the most stable type of ceramic

capacitors. Z5U and Y5V dielectric capacitors change

value by as much as 50% and 60%, respectively, over

their operating temperature ranges. To use a ceramic

chip capacitor with Y5V dielectric, the value must be

much higher than an X7R ceramic capacitor to ensure

the same minimum capacitance over the equivalent

operating temperature range.

Bypass Capacitor

A capacitor can be placed from the noise bypass pin

to ground to reduce output voltage noise. The

capacitor bypasses the internal reference. A 0.1µF

capacitor is recommended for applications that require

low noise outputs. The bypass capacitor can be

increased, further reducing noise and improving

PSRR. Turn on time increases slightly with respect to

bypass capacitance. A unique, quick start circuit

allows the MIC5330 to drive a large capacitor on the

bypass pin without significantly slowing turn on time.

No-Load Stability

Unlike many other voltage regulators, the MIC5330

will remain stable and in regulation with no load. This

is especially important in CMOS RAM keep alive

applications.

Thermal Considerations

The MIC5330 is designed to provide 300mA of

continuous current for both outputs in a very small

package. Maximum ambient operating temperature

can be calculated based on the output current and the

voltage drop across the part. Given that the input

voltage is 3.3V, the output voltage is 2.8V for VOUT1,

2.5V for VOUT2 and the output current = 300mA. The

actual power dissipation of the regulator circuit can be

determined using the equation:

PD = (VIN – VOUT1) IOUT1 + (VIN – VOUT2) IOUT2+ VIN IGND

Because this device is CMOS and the ground current

is typically <100µA over the load range, the power

dissipation contributed by the ground current is < 1%

and can be ignored for this calculation.

PD = (3.3V – 2.8V) × 300mA + (3.3V -1.5) × 300mA

D = 0.69W

To determine the maximum ambient operating

temperature of the package, use the junction-to-

ambient thermal resistance of the device and the

following basic equation:

PD(MAX) = TJ(MAX) - TA

⎝

⎛

TJ(max) = 125°C, the maximum junction temperature of

the die θJA thermal resistance = 90°C/W.

The table below shows junction-to-ambient thermal

resistance for the MIC5330 in the MLF package.

Package θJA Recommended

Minimum Footprint

8-Pin 2x2 MLF® 90°C/W

Thermal Resistance

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Substituting PD for PD(max) and solving for the ambient

operating temperature will give the maximum

operating conditions for the regulator circuit. The

junction-to-ambient thermal resistance for the

minimum footprint is 90°C/W.

The maximum power dissipation must not be

exceeded for proper operation.

For example, when operating the MIC5330-MFYML at

an input voltage of 3.3V and 300mA loads at each

output with a minimum footprint layout, the maximum

ambient operating temperature TA can be determined

as follows:

0.99W = (125°C – TA)/(90°C/W)

A=62.9°C

Therefore, a 2.8V/1.5V application with 300mA at

each output current can accept an ambient operating

temperature of 62.9°C in a 2mm x 2mm MLF®

package. For a full discussion of heat sinking and

thermal effects on voltage regulators, refer to the

“Regulator Thermals” section of Micrel’s Designing

with Low-Dropout Voltage Regulators handbook. This

information can be found on Micrel's website at:

http://www.micrel.com/_PDF/other/LDOBk_ds.pdf

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Package Information

8-Pin 2mm x 2mm MLF (ML)

MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA

TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com

Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This

information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,

specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual

property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability

whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties

relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.

Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product

reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical impla

into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A

Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully

indemnify Micrel for any damages resulting from such use or sale.

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