Micrel, Inc.

MIC23303

September 6, 2013

2

090613-2.0

Ordering Information

Part Number

Marking

Code

Nominal Output

Voltage

Junction

Temperature Range

Package

MIC23303YML

WYA

Adjustable

–40°C to +125°C

12-Pin 3mm × 3mm DFN

(1, 2)

Notes:

1.

DFN is a GREEN RoHS compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.

2.

DFN Pin 1 identifier

is ● .

Pin Configuration

3mm x 3mm DFN (ML)

(Top View)

Pin Description

Pin Number

(Adjustable)

Pin Name

Pin Function

1, 2

SW

Switch (Output): Internal power MOSFET output switches.

3

PG

Power Good: Open-drain output for the power good indicator. Use a pull-up resistor from

this pin to a voltage source to detect a power good condition.

4

EN

Enable (Input): Logic high enables operation of the regulator. Logic low shuts down the

device. Do not leave floating.

5

SNS

6

FB

Feedback: Connect a resistor divider from the output to ground to set the output voltage.

7

SS

Soft Start: Place a capacitor from this pin to ground to program the soft start time. Do not

8

AGND

9

AVIN

Supply Voltage (Power Input): Analog control circuitry. Connect to PVIN.

10, 11

PVIN

Input Voltage: Connect a capacitor to ground to decouple the noise.

12

PGND

Power Ground.

EP

ePad

Thermal pad: Connect to Ground plane for improved heat sinking.