Micrel

MIC5239

December 2007

3

M9999-121007

Pin Configuration

SOIC-8 (M)

SOT-223 (S)

SOIC-8 (M)

MSOP-8(MM)

MSOP-8(MM)

(Fixed)

(Adj)

Pin Description

Pin Number

MSOP/SOIC

Pin Number

SOT-223

Pin Name

Pin Function

2 (fixed)

—

FLG

Error FLAG (Output): Open-collector output is active low when the output

is out of regulation due to insufficient input voltage or excessive load. An

external pull-up resistor is required.

2 (adj)

—

ADJ

Adjustable Feedback Input: Connect to voltage divider network.

3

1

IN

Power Supply Input.

4

3

OUT

Regulated Output.

1

—

EN

Enable (input): Logic low = shutdown; logic high = enabled.

5–8

2

GND

Ground: Pins 5, 6, 7, and 8 are internally connected in common via the

leadframe.