RP1202
Typical Application Circuit
RP1202
V
IN
C
IN
1uF
VIN
GND
EN
BP
C
BP
22nF
VOUT
C
OUT
1uF
V
OUT
+
+
Chip Enable
Functional Pin Description
Pin Name Pin Function
VIN
GND
EN
BP
VOUT
Power Input Voltage
Ground
Chip Enable (Active High). Note that this pin is high impedance. There should be
a pull low 100KΩ resistor connected to GND when the control signal is floating.
Reference Noise Bypass
Output Voltage
Function Block Diagram
EN
Quick
Start
BP
V
REF
+
-
Error
Amplifier
Shutdown
and
Logic Control
VIN
MOS Driver
VOUT
Current-Limit
and
Thermal
Protection
GND
2
RP1202-03 February 2009