AAT3131_08 ANALOGICTECH [Advanced Analogic Technologies], AAT3131_08 Datasheet - Page 2

• Manufacturer Part Number: AAT3131_08
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Pin Descriptions
Pin Configuration
2
Pin #
10
11
12
1
2
3
4
5
6
7
8
9
Symbol
EN/SET
GND
OUT
C2+
C1+
C1-
C2-
D3
D2
D4
D1
IN
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-.
Current source output #3.
Current source output #2.
Current source output #4.
Current source output #1.
Control pin.
Input power supply. Requires 1µF capacitor connected between this pin and
ground.
Ground.
Flying capacitor 2 negative terminal.
OUT
C2+
C1+
C1-
D3
D2
Charge Pump for White LED Applications
1
2
3
5
6
4
TSOPJW-12
(Top view)
High Efficiency 1X/1.5X Fractional
12
11
10
9
8
7
C2-
GND
IN
EN/SET
D1
D4
AAT3131
3131.2005.12.1.2