AAT2846_08 Datasheet, PDF (8/22 Pages) Advanced Analogic Technologies – High Current Charge Pump with Dual LDO for Backlight and Flash Applications

PRODUCT DATASHEET
AAT2846
ChargePump^TM High Current Charge Pump with Dual LDO for Backlight and Flash Applications
Typical Characteristics
LDOs A and B Turn On Characteristic
V_EN
(2V/div) _0V
V_OUT
(500mV/div) 0V
Time (50µs/div)
LDOs A and B Load Regulation
1.0
0.5
OUTA
0.0
OUTB
-0.5
-1.0
0.1
1
10
100
1000
Load Current (mA)
LDOs A and B Output Voltage
vs. Temperature
1.5
1
0.5
0
-0.5
-1
-1.5
-40
-15
10
35
60
85
Temperature (°C)
LDOs A and B Dropout Characteristics
3.2
I_OUT = 100mA
3.0
2.8
2.6
I_OUT = 200mA
2.4
2.2
2.0
2.7
2.8
2.9
3.0
3.1
3.2
Input Voltage (V)
LDOs A and B Line Transient Response
(10mA Load)
V_IN
(250mV/div)
V_OUT
(AC Coupled)
(20mV/div)
V_IN = 3.6V
V_IN = 3.1V
Time (50µs/div)
LDOs A and B Load Transient Response
(10mA to 200mA Load Step)
I_OUT
(100mA/div)
I_OUT = 200mA
V_OUT
(AC Coupled)
(100mV/div)
Time (50µs/div)
8
www.analogictech.com
2846.2008.03.1.1