Micrel, Inc.

MIC2202

March 2007

2

M9999-031907

Ordering Information

Part Number

Voltage

Temperature Range

Package

Lead Finish

MIC2202BMM

Adj.

–40° to +125°C

10-Pin MSOP

Standard

MIC2202BML

Adj.

–40° to +125°C

10-Pin MLF

®

Standard

MIC2202YMM

Adj.

–40° to +125°C

10-Pin MSOP

Pb-Free

MIC2202YML

Adj.

–40° to +125°C

10-Pin MLF

®

Pb-Free

Pin Configuration

EN

FB

6

5

1

SW

VIN

SYNC_IN

SYNC_OUT

10 GND

GND

GND

BIAS

9

8

7

2

3

4

SW

VIN

SYNC_IN

SYNC_OUT

GND

GND

GND

BIAS

1

2

3

4

10

9

8

7

56

EN

FB

EP

10-Pin MSOP (MM)

10-Pin MLF

Pin Description

Pin Number

Pin Name

Pin Function

1

SW

Switch (Output): Internal power MOSFET output switches.

2

VIN

Supply Voltage (Input): Requires bypass capacitor to GND.

3

SYNC_IN

SYNC_IN for the MIC2202: Sync the main switching frequency to an external

clock.

4

SYNC_OUT

SYNC_OUT an open collector output.

5

EN

A low level EN will power down the device, reducing the quiescent current to

under 1µA.

6

FB

Input to the error amplifier, connect to the external resistor divider network to set

the output voltage.

7

BIAS

Internal circuit bias supply, nominally 2.3V. Must be de-coupled to signal ground

with a 0.01µF capacitor.

8, 9, 10

GND

Ground.

EP

GND

Ground, backside pad.