Micrel, Inc.

MIC2142

October 2007

2

M9999-102507

Ordering Information

Part Number

Marking*

Standard

Pb-Free

Standard

Pb-Free

Voltage

Ambient

Temperature Range

Package

MIC2142BM5

MIC2142YM5

SBAA

SBAA

Adj.

–40° to +85°C

5-Pin SOT23

* Under bar symbol (_) may not be to scale.

Pin Configuration

5-Pin SOT23 (BM5)

5-Pin SOT23 (YM5)

Pin Description

Pin Number

Pin Name

Pin Function

1

VCC

Chip Supply: +2.2V to +16V.

2

GND

Ground: Return for internal circuitry and internal MOSFET (switch) source.

3

SW

Switch Node (Input): Internal MOSFET drain; 22V maximum.

4

FB

Feedback (Input): Output voltage sense node.

5

EN

Shutdown: Device shuts down to 0.1µA typical supply current.