MIC5191

Micrel

April 2004

2

M9999-042804

Pin Description

Pin Number

Pin Name

Pin Function

1

VIN

Input voltage (current sense +).

2FB

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.

6EN

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.

Pin Configuration

COMP

EN

5

1

VIN

FB

SGND

VCC1

10 IS

PGND

OUT

VCC2

9

8

7

2

3

4

6

MLF-10 (ML)

Top View

Ordering Information

FB

Output

Output

Part Number

Voltage

Current

Voltage

Junction Temp. Range

Package

MIC5191BML

1V

ADJ

ADJ–40

°C to +125°C10-lead MLF™

MIC5191BMM

1V

ADJ

ADJ–40

°C to +125°C

MSOP-10

COMP

EN

6

5

1

VIN

FB

SGND

VCC1

10 IS

PGND

OUT

VCC2

9

8

7

2

3

4

MSOP-10 (MM)

Top View