Micrel, Inc.

MIC5191

December 2006

2

M9999-122206

Ordering Information

Part Number

Standard

Pb-Free

Voltage

Junction

Temperature Range

Package

MIC5191BML

MIC5191YML

Adj.

–40° to +125°C

10-Pin 3mm x 3mm MLF

®

MIC5191BMM

MIC5191YMM

Adj.

–40° to +125°C

10-Pin MSOP

Pin Configuration

COMP

EN

5

1

VIN

FB

SGND

VCC1

10 IS

PGND

OUT

VCC2

9

8

7

2

3

4

6

COMP

EN

6

5

1

VIN

FB

SGND

VCC1

10 IS

PGND

OUT

VCC2

9

8

7

2

3

4

10-Pin 3mm x 3mm MLF

Top View

10-Pin MSOP (MM)

Top View

Pin Description

Pin Number

Pin Name

Pin Function

1

VIN

Input voltage (current sense +).

2

FB

Feedback input to error amplifier.

3

SGND

Signal ground.

4

VCC1

Supply to the internal voltage regulator.

5

COMP

Error amplifier output for external compensation.

6

EN

Enable (Input): CMOS-compatible.

Logic high = Enable, Logic low = Shutdown. Do not float pin.

7

VCC2

Power to output driver.

8

OUT

Output drive to gate of power MOSFET.

9

PGND

Power ground

10

IS

Current sense.