AAT2856_08 Datasheet, PDF (7/18 Pages) Advanced Analogic Technologies – High Current Charge Pump with Dual LDO for Backlight Applications

PRODUCT DATASHEET
AAT2856
ChargePump^TM High Current Charge Pump with Dual LDO for Backlight Applications
Typical Characteristics
LDOs A and B Line Regulation
1.0
0.5
OUTA
0
OUTB
-0.5
-1.0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
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)
2856.2008.02.1.3
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