PRODUCT DATASHEET
AAT1217
SwitchRegTM
600mA, 1.2MHz, Micropower Synchronous Step-Up Converter
Pin Descriptions
Pin # Symbol Function
1
2
SW
GND
Power Switch Pin. Ties to the drains of the PMOS synchronous rectifier and the NMOS switch.
Ground Pin
Feedback Input Pin. Connect FB to the center point of the external resistor divider. The feedback threshold
voltage is 1.23V.
3
FB
4
5
6
SHDN
VOUT
VIN
Shutdown Signal Input. Logic high enables the IC. Logic low disables the IC. Shutdown current is <1μA.
Power Output Pin. Tied to the source of the PMOS synchronous rectifier.
Power Supply Input. Must be closely decoupled to GND, Pin 2, with a 4.7μF or greater ceramic capacitor.
Pin Configuration
TSOT23-6/SOT23-6
(Top View)
6
1
VIN
SW
2
3
5
VOUT
SHDN
GND
FB
4
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2
1217.2008.03.1.3
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
