High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
AAT3141
Symbol
C2+
CP
C1-
C1+
D3
D2
D4
D1
EN/SET
IN
GND
C2-
Function
Flying Capacitor 2 + terminal. Connect a 1µF capacitor between C2+ and C2-.
Charge pump output. Requires 1µF capacitor connected between this pin and
ground.
Flying Capacitor 1 - terminal
Flying Capacitor 1 + terminal. Connect a 1µF capacitor between C1+ and C1-.
Current source output #3
Current source output #2
Current source output #4
Current source output #1
AS
2
Cwire Serial Interface Control Pin
Input power supply. Requires 1µF capacitor connected between this pin and
ground.
Ground
Flying Capacitor 2 - terminal
Pin Configuration
TSOPJW-12
(Top View)
C2+
CP
C1-
C1+
D3
D2
C2-
GND
IN
EN/SET
D1
D4
1
2
3
4
5
6
12
11
10
9
8
7
2
3141.2004.07.0.91
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
