AAT3131 View Datasheet(PDF) - Advanced Analogic Technologies

Part Name

Description

MFG CO.

AAT3131

High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications

Advanced Analogic Technologies 

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AAT3131

High Efficiency 1X/1.5X Fractional

Charge Pump for White LED Applications

Pin Descriptions

Pin #

1

2

Symbol

C2+

OUT

3

C1-

4

C1+

5

D3

6

D2

7

D4

8

D1

9

EN/SET

10

IN

11

GND

12

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 #4

Current source output #3

Current source output #2

Current source output #1

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+ 1

OUT 2

C1- 3

C1+ 4

D3 5

D2 6

12 C2-

11 GND

10 IN

9 EN/SET

8 D1

7 D4

2

3131.2004.08.1.1

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