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AAT3172 Datasheet(PDF) 5 Page - Advanced Analog Technology, Inc.

Part # AAT3172
Description  High Current LED Flash Driver Charge Pump IC
PDF  15 Pages
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Manufacturer  AAT [Advanced Analog Technology, Inc.]
Direct Link  http://www.aatech.com.tw
Logo AAT - Advanced Analog Technology, Inc.

AAT3172 Datasheet(HTML) 5 Page - Advanced Analog Technology, Inc.

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Typical Characteristics
VIN = 3.6V, CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
Turn-Off from 1.5X Mode
(VIN = 3.2V; 50mA/ch Load)
200
μμs/div
EN
(2V/div)
V
F
(1V/div)
IIN
(200mA/div)
Turn-On to 2X Mode
(VIN = 3.2V; 300mA/ch Load)
500
μμs/div
EN
(2V/div)
V
OUT
(2V/div)
IIN
(500mA/div)
VSINK
(1V/div)
Turn-On to 1X Mode
(VIN = 4.2V; 300mA/ch Load)
500
μμs/div
EN
(2V/div)
V
OUT
(2V/div)
IIN
(500mA/div)
VSINK
(1V/div)
Turn-On to 1.5X Mode
(VIN = 3.2V; 50mA/ch Load)
200
μμs/div
EN
(2V/div)
V
OUT
(2V/div)
IIN
(200mA/div)
VSINK
(1V/div)
Turn-On to 1X Mode
(VIN = 4.2V; 50mA/ch Load)
200
μμs/div
EN
(2V/div)
V
OUT
(2V/div)
IIN
(200mA/div)
VSINK
(1V/div)
Efficiency vs. Supply Voltage
Supply Voltage (V)
30
40
50
60
70
80
90
100
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
152mA/ch
VF = 3.0V
95mA/ch
VF = 2.9V
50mA/ch
VF = 2.8V
AAT3172
High Current LED Flash Driver Charge Pump IC
3172.2006.05.1.5
5



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