AAT3153
High Efficiency 1X/1.5X/2X Charge Pump
For White LED Applications
Pin Descriptions
Pin #
Symbol
Function
1
2
3
4
D6
EN/SET
N/C
Current sink input #6.
S2Cwire serial interface control pin.
No connection.
VOUT
Charge pump output to drive load circuit. Requires 1µF capacitor connected between this
pin and ground.
5
6
C2+
C1+
C1-
C2-
GND
IN
Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+ and C2-.
Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+ and C1-.
7
Flying capacitor 1 negative terminal.
8
Flying capacitor 2 negative terminal.
9, 11
10
12
13
14
15
16
EP
Ground.
Input power supply. Requires 1µF capacitor connected between this pin and ground.
D1
Current sink input #1.
D2
Current sink input #2.
D3
Current sink input #3.
D4
Current sink input #4.
D5
Current sink input #5.
Exposed paddle (bottom); connect to GND directly beneath package.
Pin Configuration
QFN44-16
(Top View)
1
2
3
4
12
11
10
9
D6
EN/SET
N/C
D1
GND
IN
AAT3153
VOUT
GND
2
3153.2005.12.0.93
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
