AAT3122_05 ANALOGICTECH [Advanced Analogic Technologies], AAT3122_05 Datasheet - Page 2

• Manufacturer Part Number: AAT3122_05
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Pin Descriptions
Pin Configuration
2
5, 6, 7, 8
Pin #
10
11
12
1
2
3
4
9
Symbol
EN/SET
OUT
GND
C2+
C1+
C1-
C2-
IN
D
Function
Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+ and C2-.
Charge pump output. Requires 1µF bypass capacitor to ground.
Flying capacitor 1 negative terminal.
Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+ and C1-.
Output current source with drive capability of up to 120mA.
Input control pin. Serial data interface that controls the level of output current. See
Application Information for more details.
Input power supply. Requires 1µF bypass capacitor to ground.
Ground.
Flying capacitor 2 negative terminal.
OUT
C2+
C1-
C1+
D
D
High Efficiency 1X/1.5X Fractional Charge
1
2
3
5
6
4
TSOPJW-12
(Top View)
Pump for White LED Applications
12
11
10
9
8
7
C2-
GND
IN
EN/SET
D
D
AAT3122
3122.2005.11.1.3