Micrel

MIC2224

January 2005

2

M9999-012705

www.micrel.com

Ordering Information

Part Number

Output

Voltage

(1)

Junction Temp. Range

Package

Lead Finish

MIC2224YML

Adj.

–40° to +125°C

3x3 MLF-10L

Pb-free

Pin Configuration

SW

VIN

VIN

EN

PGND

VOUT

VOUT

AGND

1

2

3

4

10

9

8

7

56

AVIN

DAC

EP

3mm x 3mm MLF-10L (ML)

Pin Description

Pin

Pin Name

Pin Function

1

SW

Switch (Output): Internal power MOSFET output switches.

2, 3

VIN

Supply Voltage (Input): Requires bypass capacitor to GND.

4

EN

A low level EN will power down the device, reducing the quiescent current to under 5uA

( typ 1uA )

5

AVIN

Supply Voltage (Input): Requires bypass capacitor to GND.

6

DAC

DAC Control Input. Provides control of output voltage. The output voltage is 3 X the

exceeds 1.2V.

7

AGND

Signal Ground of chip

8, 9

VOUT

Source of Internal P-Channel MOSFET and Feedback of internal PWM regulator.

10

PGND

Power Ground of chip.

EP

Exposed Pad

Connect to ground.