Micrel, Inc.

MIC94310

Pin Configuration

0.88mm × 0.88mm 4-Ball CSP (CS)

Top View

1.2mm × 1.6mm 4-Pin TDFN (MT)

Top View

5-Pin SOT-23 (M5)

Top View

Pin Description

Pin Number

(TDFN)

Pin Number

(SOT-23)

Ball Number

(WLCSP)

Pin Name

Pin Function

1

5

A2

VOUT

Power switch output.

2

2

B2

GND

Ground.

3

3

B1

EN

Enable Input. A logic HIGH signal on this pin enables the part.

Logic LOW disables the part. Do not leave floating.

4

1

A1

VIN

Power switch input and chip supply.

–

4

–

NC

No Connect. Not internally connected.

EP

–

–

ePad

Exposed Heatsink Pad. Connect to ground for best thermal

performance.

September 11, 2014

3

Revision 2.1