600mA Step-Down Converter
Pin Descriptions
Pin #
1
2
3
4
5
AAT1106
Symbol
EN
GND
LX
IN
FB/OUT
Enable pin. Active high. In shutdown, all functions are disabled drawing <1µA supply current.
Do not leave EN floating.
Ground pin.
Switching node. Connect the output inductor to this pin. Connects to the drains of the internal
P- and N-channel MOSFET switches.
Supply input pin. Must be closely decoupled to GND with a 2.2µF or larger ceramic capacitor.
FB (AAT1106ICB-0.6): Feedback input pin. Connect FB to the center point of the external
resistor divider. The feedback threshold voltage is 0.6V.
OUT (AAT1106ICB-1.5, AAT1106ICB-1.8): Output voltage pin.
Function
Pin Configuration
TSOT23-5
(Top View)
5
EN
GND
LX
1
FB
EN
GND
1
5
OUT
2
2
3
4
IN
LX
3
4
IN
Adjustable Output Version
(AAT1106ICB-0.6)
Fixed Output Versions
(AAT1106ICB-1.5,
AAT1106ICB-1.8)
2
1106.2007.07.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
