AAT3123/23A/24
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
Additional Application Circuits
VIN
C1+
C1
1µF
C1-
C2+
VOUT
VBATTERY
CIN
COUT
AAT3123
AAT3123A
1µF
1µF
C2
1µF
C2-
D1
D2
D3
D4
EN/SET
EN/SET
GND
D4
D3
D2
D1
Typical AAT3123/23A Application Circuit.
VIN
C1+
C1
1µF
C1-
C2+
VOUT
CIN
COUT
AAT3123
AAT3123A
C2
1µF
VBATTERY
1µF
1µF
C2-
D1
D2
D3
D4
Display Module
EN/SET
EN/SET
GND
D1
D2
D3
RB3
D4
RB1
RB2
RB4
Resistor R is optional
AAT3123/23A Driving a Display Module with Four Paralleled White LEDs.
3123.2005.12.1.4
13