Micrel, Inc.

MIC2039

June 7, 2013

3

Revision 1.1

Pin Description

Pin Number

Pin

Name

Pin Function

SOT-23-6L

6-pin

2mmx2mm

Thin DFN

1

6

VIN

Input: Power switch and logic supply input.

2

5

GND

Ground: Input and output return pin.

3

4

EN

Enable (Input): Logic compatible, enable control input that allows switch turn-on/off.

Do not leave the EN pin floating.

4

3

FAULT/

Fault Status Flag (Output): Active-low, open-drain output. A logic low state

indicates an overcurrent or thermal shutdown condition. An overcurrent condition

Ω

recommended) to an external supply is required.

5

2

ILIMIT

Current Limit Set: Current limit adjust setting. Connect a resistor from this pin to

GND to set the current limit, but do not leave the ILIMIT pin floating.

6

1

VOUT

Switch Output: Power switch output.

—

EP

ePad

Exposed Pad: Exposed pad on bottom of package. Connect to electrical ground for

optimum thermal dissipation.