Micrel, Inc.

MIC39300/39301/39302

October 2009

3

M9999-102309-A

Pin Configuration

MIC39300-x.xBT

TO-220-3 (T)

MIC39300-x.xBU

TO-263-3 (U)

MIC39301-x.xBT

TO-220-5 (T)

MIC39301-x.xBU

TO-263-5 (D

MIC39302WU

TO-263-5 (D

Pin Description

Pin

Number

MIC39300

Pin

Number

MIC39301

Pin

Number

MIC39302

Pin Name

Pin Function

—

1

1

EN

Enable (Input): TTL/CMOS compatible input. Logic high = enable; logic low

or open = shutdown.

1

2

2

IN

Unregulated Input: +16V maximum supply.

2, TAB

3, TAB

3, TAB

GND

Ground: Ground pin and TAB are internally connected.

3

4

4

OUT

Regulator Output

—

5

—

FLG

Error Flag (Ouput): Open-collector indicates an output fault condition.

Active low.

—

—

5

ADJ

Adjustable Regulator Feedback Input: Connect to the resistor voltage

divider that is placed from OUT to GND in order to set the output voltage.