MIC5159

Micrel

M9999-041204

2

April 2004

Pin Description

Pin Number

Pin Name

Pin Function

1

IN

Input Voltage.

2

GND

Ground.

3

IS

Current Sense: IS must be tied to VIN pin if the current limit feature is not

used.

4

GATE

Gate drive of the external P-Channel MOSFET.

5

EN

Enable Input: Logic Level ON/OFF control. Logic high = ON;

logic low = OFF.

6

ADJ.

Adjustable Regulator Feedback Input: Connect to resistor voltage divider.

VO

Output Voltage: Connect to drain of P-Channel MOSFET to regulate output

to proper voltage.

Pin Configuration

IN GND

GATE

IS

13

4

6

ADJ

LZAA

5

EN

2

Pin 1

Index

SOT-23-6 (M6)

Adjustable Voltage Version

IN GND

GATE

IS

13

4

6

VO

LZxx

5

EN

2

Pin 1

Index

SOT-23-6 (M6)

Fixed Voltage Version