Ap3436/a, Pin descriptions, Functional block diagram – Diodes AP3436/A User Manual
Page 3
AP3436/A
Document number: DS37212 Rev.
2 - 2
3 of 15
April 2014
© Diodes Incorporated
AP3436/A
A Product Line of
Diodes Incorporated
Pin Descriptions
Pin Number
Pin Name
Function
1
FB
Voltage Feedback Input. Connect to V
OUT
through a voltage divider to set
the output voltage
2
VCC
Analog Power Input
3
VIN
Power Input
4, 5
GND
Ground. Must be Connected to GND on PCB
6, 7
SW
Power Switch Output
8
BOOT
High Side Switch Driver Supply
9
PGOOD
Open Drain Power Good Output
10
EN
Enable
11
Exposed Pad
Thermal Connection to the PCB. Must be connected to GND on PCB
Functional Block Diagram
75%
Logic
125%
EA
Voltage
Reference
Soft Start
EN
Shutdown
Logic
Thermal
Shutdown
UVLO
Boot
Charge
Boot
UVLO
Logic and
PWM Latch
PWM
Slope
Compensation
Oscillator
Current Limit and
Short Protection
Current
Sense
FB
1
2
VCC
9
10
PGOOD EN
GND
GND
SW
BOOT
3
VIN
8
6,7
4,5
4,5
+