Diodes AP1604 - Manual (Page 2)

AP1604A
PWM/PFM DUAL MODE STEP-DOWN DC/DC
CONVERTER
AP1604A Rev. 2 2 of 7 FEBRUARY 2009
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Pin Assignment
1 3 2
5 4
CE/SS
V
OUT
V
CC
GND
SOT25
FB
(Top View)
AP1604A
Pin Description
Block Diagram
Phase
Compensation
Vref with
CE
+
-
PWM/PFM
Controller
+
-
Ramp Wave
Generator,
OSC
V
OUT
CE/SS GND
V
CC
PWM
Comparator
FB
Current Limit
Soft
Start
ERR
AMP
SV
CC
Pin Name Description
V
OUT
Output Voltage
GND Ground
V
CC
Input Supply
CE/SS Chip Enable / Soft Start
FB Feedback pin