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AAT3123 Datasheet(PDF) 2 Page - Advanced Analogic Technologies

Part No. AAT3123
Description  High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
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Manufacturer  ANALOGICTECH [Advanced Analogic Technologies]
Direct Link  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT3123 Datasheet(HTML) 2 Page - Advanced Analogic Technologies

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AAT3123/23A/24
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
2
3123.2005.12.1.4
Pin Descriptions
Pin Configuration
TSOPJW-12
QFN44-16
(Top View)
(Top View)
1
2
3
4
12
11
10
9
D2
D5
D6
D3
OUT
C2+
C2-
GND
AAT3124
1
2
3
4
5
6
12
11
10
9
8
7
C2+
AAT3123
AAT3123A
OUT
C1-
C1+
D4
D3
C2-
GND
IN
EN/SET
D1
D2
Pin #
AAT3123/23A
AAT3124
(TSOPJW-12)
(QFN44-16)
Symbol
Function
1
10
C2+
Flying capacitor 2 positive terminal. Connect a 1
µF capacitor
between C2+ and C2-.
2
9
OUT
Charge pump output. Requires 1
µF capacitor connected
between this pin and ground.
3
7
C1-
Flying capacitor 1 negative terminal.
4
6
C1+
Flying capacitor 1 positive terminal. Connect a 1
µF capacitor
between C1+ and C1-.
5
5
D4
Current source output #4.
6
4
D3
Current source output #3.
7
1
D2
Current source output #2.
8
16
D1
Current source output #1.
9
15
EN/SET
Control pin using S
2Cwire serial interface.
10
14
IN
Input power supply. Requires 1
µF capacitor connected between
this pin and ground.
11
12
GND
Ground.
12
11
C2-
Flying capacitor 2 negative terminal.
2
D5
Current source output #5.
3
D6
Current source output #6.
8, 13
N/C
No connection.
EP
Exposed paddle (bottom); connect to GND directly beneath
package.


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