AAT3112 AAT, AAT3112 Datasheet - Page 2

• Manufacturer Part Number: AAT3112
• Description: High Efficiency Charge Pump
• Manufacturer: AAT

Pin Descriptions
Pin Configuration
2
1, 4, 8, 12
Pin #
EP
10
12
14
15
16
11
2
3
5
6
7
9
Symbol
VOUT1
VOUT2
GND
GND
EN2
EN1
C2+
C1+
N/C
VIN
VIN
C2-
C1-
Function
No connect.
Flying capacitor 2 positive terminal. Connect 1μF capacitor between C2+ and C2-.
Flying capacitor 2 negative terminal.
Input voltage. Connect to Pin 11.
Ground connection.
Enable pin. When connected high, Charge Pump 2 is enabled. When connected low, it
disables the charge pump.
Enable pin. When connected high, Charge Pump 1 is enabled. When connected low, it
disables the charge pump.
Ground connection.
Input voltage. Connect to Pin 5.
Output pin for regulated output voltage. Bypass this pin to ground with a low ESR 10μF
capacitor.
Flying capacitor 1 positive terminal. Connect 1μF capacitor between C1+ and C1-.
Flying capacitor 1 negative terminal.
Regulated output voltage 2. Must be connected to V
If used separately, bypass this pin to ground with a low ESR 10μF capacitor.
Exposed paddle (bottom); connect to GND directly beneath package.
C2+
C2-
N/C
N/C
1
2
3
4
500mA High Efficiency Charge Pump
(Top View)
QFN33-16
for White LED Flash Applications
12
11
10
9
VOUT1
VIN
GND
EN1
OUT1
for higher current applications.
3112.2007.01.1.5