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| AAT2801 Datasheet, PDF (12/20 Pages) Advanced Analogic Technologies – Multi-Mode Charge Pump for White LED Backlight and Flash Applications | |||
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AAT2801
Multi-Mode Charge Pump for
White LED Backlight and Flash Applications
Typical CharacteristicsâFlash Driver Charge Pump Section
VIN = 3.5V, CIN = 2.2µF, C3 = CF = 1.0µF, TA = 25°C, unless otherwise noted.
Startup
ENABLE
(1V/div)
ILOAD = 150mA @ VIN = 3.3V
ILOAD = 100mA @ VIN = 3.0V
VOUT
(1V/div)
ILOAD = 150mA @ VIN = 3.3V
Time (100µs/div)
VEN Threshold vs. Supply Voltage
1.00
0.95
0.90
0.85
VIH
0.80
0.75
VIL
0.70
0.65
0.60
0.55
0.50
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Supply Voltage (V)
Normalized Output Voltage vs. Temperature
2.0
1.5
IOUT = 25mA
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-50
-30
-10
10
30
50
70
90
Temperature (°C)
12
2801.2006.04.1.3
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