AAT3120
3-Channel Charge Pump
For White LED Applications
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
Symbol
C2+
OUT
C1-
C1+
N/C
D3
D2
D1
EN/SET
IN
GND
C2-
Function
Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+ and
C2-.
Charge pump output. Requires 1µF capacitor connected between this pin and
ground.
Flying capacitor 1 negative terminal.
Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+ and
C1-.
No connection.
Current source output #3.
Current source output #2.
Current source output #1.
Control pin.
Input power supply. Requires 1µF capacitor connected between this pin and
ground.
Ground.
Flying capacitor 2 negative terminal.
Pin Configuration
TSOPJW-12
(Top View)
C2+
OUT
C1-
C1+
N/C
D3
C2-
GND
IN
EN/SET
D1
D2
1
2
3
4
5
6
12
11
10
9
8
7
2
3120.2005.11.1.1
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
