Micrel, Inc.

MIC47300

October 2009

2

M9999-102309-A

Ordering Information

Part Number

Output Current

Voltage

Junction Temp. Range

Package

MIC47300WD*

3A

Adjustable

–40° to +125°C

5-Pin TO-252

Note:

* RoHs compliant with ‘high-melting solder’ exemption.

Pin Configuration

5-Pin TO-252 D-Pak (D)

Pin Description

Pin Number

Pin Name

Pin Name

1

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.

2

BIAS

Input Bias Voltage: Voltage for powering all internal circuitry of the regulator with the

exception of the output power device.

3

GND, TAB

Ground: TAB is also connected internally to the IC’s ground on D-Pak.

4

IN

Input Voltage: Supplies the current to the output power device

5

OUT

Regulator Output: The output voltage is set by the resistor divider connected from OUT

to GND (with the divided connection tied to ADJ). A minimum value capacitor must be

used to maintain stability. See Applications Information.