Micrel, Inc.

MIC2950/2951

February 2010

3

M9999-021610

Pin Configuration

TO-92 (Z)

(Bottom View)

DIP (N), SOIC (M), MM8

(Top View)

Pin Description

Pin No.

MIC2950

Pin No.

MIC2951

Pin Name

Pin Function

3

1

OUT

Regulated Output.

2

SNS

Sense (Input): Output-voltage sensing end of internal voltage divider for fixed 5V

operation. Not used in adjustable configuration.

3

SHDN

Shutdown/Enable (Input): TTL compatible input. High = shutdown, low or open

= enable.

2

4

GND

Ground.

5

ERR

Error Flag (Output): Active low, open-collector output (low = error, floating =

normal).

6

TAP

3.3V/4.85/5V Tap: Output of internal voltage divider when the regulator is

configured for fixed operation. Not used in adjustable configuration.

7

FB

Feedback (Input): 1.235V feedback from internal voltage divider’s TAP (for fixed

operation) or external resistor network (adjustable configuration).

1

8

IN

Unregulated Supply Input.