Owner's manual

AP5002
PWM CONTROL 2A STEP-DOWN CONVERTER
AP5002 Rev. 8 2 of 10 FEBRUARY 2009
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( Top View )
1
2
3
4
8
7
6
5
FB
Output
Comp
SOP-8L
AP5002
Output
EN
Vss
Vss
V
CC
Name Pin Description
FB 1 Feedback pin
EN 2
Power-off pin
H: Normal operation
(Step-down operation)
L: Step-down operation stopped
(
All circuits deactivated
)
Comp 3 Compensation pin
V
CC
4 IC power supply pin
Output
5、6
Switch Pin. Connect external
inductor/diode here. Minimize trace
area at this pin to reduce EMI.
V
SS
7、8
GND Pin
Block Diagram
Oscillation
Circuit
Reference Voltage Source
PWM-Switched
Control Circuit
+
-
Vss
V
EN
EN
100uA
Comp
FB
Vcc
Thermal
Shutdown
Output
Pin Assignments
Pin Descriptions