Micrel Inc.

MIC23201

August 2012

2

M9999-082912-A

Ordering Information

Part Number

Marking

Code

Nominal Output

Voltage

Package

Junction

Temp. Range

Lead

Finish

MIC23201YML

201A

ADJ

10-pin 3mm x 3mm MLF

-40

C to +125C

Pb-Free

Notes:

1. Other options available. Contact Micrel for details.

2.

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

Pin Configuration

10 Pin 3mm x 3mm MLF (ML)

(Top View)

Pin Description

Pin Number

Pin Name

Pin Function

1

SW

Switch output: Internal power MOSFET output switches.

2

EN

Enable input: Logic high enables operation of the regulator. Logic low will shut down the device. Do

not leave floating.

3

SNS

4

FB

Feedback input: The FB pin is regulated to 0.62V. Connect a resistor divider from the output to

ground to set the output voltage.

5

PG

Power Good output: Open Drain output for the power good indicator. Place a resistor between this

pin and a voltage source to detect a power good condition.

6

SS

Soft Start: Place a capacitor from SS pin to ground to program the soft start time. Do not leave this

7

AGND

PGND) for best operation.

8

SVIN

Signal input voltage: This pin is connected externally to the VIN pin. A 2.2µF ceramic capacitor from

the SVIN pin to AGND must be placed next to the IC.

9

VIN

Power supply input voltage: The VIN pin is the input supply to the internal P-Channel Power

MOSFET. A 22µF ceramic is recommended for bypassing at VIN pin.

10

PGND

Power Ground.

EP

ePad

Thermal pad. It must be connected to PGND on the PCB to improve the thermal performance.