AAT3134
High Efficiency 1X/1.5X Fractional
Charge Pump for White LED Applications
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8,13
9
10
11
12
14
15
16
EP
Symbol
D2
D5
D6
D3
D4
C1+
C1-
N/C
OUT
C2+
C2-
GND
IN
EN/SET
D1
Function
Current source output #2.
Current source output #5.
Current source output #6.
Current source output #3.
Current source output #4.
Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+ and C1-.
Flying capacitor 1 negative terminal.
No connection.
Charge pump output. Requires 1µF capacitor connected between this pin and ground.
Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+ and C2-.
Flying capacitor 2 negative terminal.
Ground.
Input power supply. Requires 1µF capacitor connected between this pin and ground.
Control pin.
Current source output #1.
Exposed paddle (bottom); connect to GND directly beneath package.
Pin Configuration
QFN44-16
(Top View)
EN/SET
15
N/C
IN
14
13
D1
16
D2
D5
D6
D3
1
12
GND
C2-
C2+
OUT
2
11
3
10
4
5
6
7
8
9
C1+
D4
N/C
C1-
2
3134.2005.12.1.1
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
