AAT3123 ETC, AAT3123 Datasheet - Page 2

• Manufacturer Part Number: AAT3123
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ETC

Pin Descriptions
Pin Configuration
2
(TSOPJW-12)
AAT3123
12
11
10
8
7
6
5
4
3
1
2
9
Pin #
OUT
12-Lead TSOPJW
C2+
C1+
C1-
D4
D3
(16LD 4x4 QFN)
(Top View)
1
2
3
4
5
6
AAT 3123
AAT3124
8, 13
16
10
11
12
14
15
1
4
5
2
3
6
7
9
12
11
10
9
8
7
C2-
GND
IN
EN/SET
D1
D2
Symbol
EN/SET
GND
OUT
C1+
C2+
C1-
C2-
NC
D1
D2
D3
D4
D5
D6
IN
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
Function
Current source output #1
Current source output #2
Current source output #3
Current source output #4
Current source output #5
Current source output #6
Flying Capacitor 1 + terminal. Connect a 1µF capaci-
tor between C1+ and C1-.
Flying Capacitor 1 - terminal
Flying Capacitor 2 + terminal. Connect a 1µF capaci-
tor between C2+ and C2-.
Flying Capacitor 2 - terminal
Ground
Charge pump output. Requires 1µF capacitor connect-
ed between this pin and ground.
Input power supply. Requires 1µF capacitor connected
between this pin and ground.
Control Pin using S
No Connection
16 LD 4x4mm QFN
D5*
D6*
D2
D3
(Top View)
1
2
3
4
2
D4
D1
16
Cwire serial interface.
5
AAT 3124
SET
C1+ C1-
EN/
15
6
14
IN
7
NC
NC
13
8
12
11
10
9
GND
C2-
C2+
OUT
3123.2003.09.1.1