Micrel, Inc.

MIC4724

June 2008

2

M9999-062408-A

Ordering Information

Part Number

Voltage

Temperature Range

Package

Lead Finish

MIC4724YMME

Adj.

–40° to +125°C

10-Pin ePAD MSOP

Pb-Free

Note

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

Pin Configuration

FB

EN

6

5

1

SW

VIN

SGND

BIAS

10 SW

VIN

PGND

PGOOD

9

8

7

2

3

4

EP

10-Pin ePAD MSOP (MME)

Pin Description

Pin

Number

Pin

Name

Pin Function

1, 10

SW

Switch (Output): Internal power P-Channel MOSFET output switch.

2, 9

VIN

Supply Voltage (Input): Supply voltage for the source of the internal P-channel MOSFET

and driver. Requires bypass capacitor to GND.

8

PGND

Power Ground. Provides the ground return path for the high-side drive current.

3

SGND

Signal (Analog) Ground. Provides return path for control circuitry and internal reference.

4

BIAS

Internal circuit bias supply. Must be bypassed with a 0.1µF ceramic capacitor to SGND.

5

FB

Feedback. Input to the error amplifier, connect to the external resistor divider network to

set the output voltage.

6

EN

Enable (Input). Logic level low, will shutdown the device, reducing the current draw to

less than 5µA.

7

PGOOD

Power Good. Open drain output that is pulled to ground when the output voltage is

within ±7.5% of the set regulation voltage.

EP

ePAD

Connect to ground.