Micrel, Inc.
Pin Configuration
MIC5501/2/3/4
4-Pin 1mm × 1mm Thin DFN (MT)
(Top View)
5-Pin SOT23 (M5)
(Top View)
Pin Description
Pin Name
VOUT
GND
EN
VIN
NC
ePad
Pin Number
Thin DFN-4
1
2
3
4
-
EP
Pin Number
SOT23-5
5
2
3
1
4
-
Pin Function
Output Voltage. When disabled the MIC5502 and MIC5504 switches in an internal
25Ω load to discharge the external capacitors.
Ground
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.
Supply Input.
No Connection. Pin is not internally connected.
Exposed Heatsink Pad. Connect to GND for best thermal performance.
April 20, 2015
3
Revision 2.3