February 2006

3

M9999-022106

MIC2212

Micrel, Inc.

Pin Description

Pin Number

Pin Name

Pin Function

MLF-10 (3x3)

1

VIN

Supply Input: (VIN1 and VIN2 are internally tied together.)

2

EN1

Enable Input to Regulator 1: Enables regulator 1 output. Active high input.

High = on, low = off. Do not leave floating.

3

EN2

Enable Input to Regulator 2: Enables regulator 2 output. Active high input.

High = on, low = off. Do not leave floating.

4

CBYP

Reference Bypass: Connect external 0.01µF to GND to reduce output noise.

May be left open.

5

SET

Delay Set Input: Connect external capacitor to GND to set the internal delay

for the POR output. When left open, there is no delay. This pin cannot be

grounded.

6

GND

Ground: Connect externally to Exposed Pad.

7

NC

No Connection.

8

POR

Power-On Reset Output: Open-drain output. Active low indicates an output

undervoltage condition on regulator 2.

9

VOUT2

Output of Regulator 2: 300mA output current.

10

VOUT1

Output of Regulator 1: 150mA output current.

EP

GND

Ground: Internally connected to the Exposed Pad. Connect externally to pin

6 of the IC.

1

VIN

EN1

EN2

BYP

SET

10 VOUT1

VOUT2

POR

NC

GND

9

8

7

6

2

3

4

5

10-Pin 3mm × 3mm MLF™ (ML)

(Top View)

Pin Configuration