Micrel, Inc.

MIC5501/2/3/4

April 20, 2015

3

Revision 2.3

Pin Configuration

4-Pin 1mm × 1mm Thin DFN (MT)

(Top View)

5-Pin SOT23 (M5)

(Top View)

Pin Description

Pin Name

Pin Number

Thin DFN-4

Pin Number

SOT23-5

Pin Function

VOUT

1

5

Output Voltage. When disabled the MIC5502 and MIC5504 switches in an internal

25Ω load to discharge the external capacitors.

GND

2

2

Ground

EN

3

3

Enable Input: Active High. High = ON; Low = OFF. For MIC5501 and MIC5502 do not

leave floating. MIC5503 and MIC5504 have an internal pull-down and this pin may be

left floating.

VIN

4

1

Supply Input.

NC

-

4

No Connection. Pin is not internally connected.

ePad

EP

-

Exposed Heatsink Pad. Connect to GND for best thermal performance.