Diodes AP1506 - Manual (Page 3)

AP1506
150KHz, 3A PWM BUCK DC/DC CONVERTER
AP1506
Document number: DS31015 Rev. 7 - 2
3 of 14
www.diodes.com
June 2010
© Diodes Incorporated
Pin Descriptions
Functional Block Diagram
Current
Source
bias
1.235V
Reference
2.5V
Regulator
150KHz
OSC.
Start
up
+
-
Thermal
Shutdown
Pre-driver
Comp
GND
Output
SD
FB
220mV 200mV
3A
Switch
Frequecy
compen-
sation
+
-
Comp
+
-
Comp
+
- Amp
V
IN
Pin Name Description
V
IN
Operating Voltage Input
Output Switching Output
GND Ground
FB Output Voltage Feedback Control
SD ON/OFF Shutdown