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| AAT3152 Datasheet, PDF (5/10 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications | |||
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AAT3152
High Efficiency 1X/1.5X/2X Charge Pump
For White LED Applications
Typical Characteristics
Efficiency vs. Supply Voltage
100
10mA
20mA
90
80
70
60
50
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
Supply Voltage (V)
EN
(2V/div)
CP
(2V/div)
VSINK
(500mV/div)
IIN
(200mA/div)
Turn On to 1X Mode
(VIN = 4.2V; 20mA Load)
200µs/div
EN
(2V/div)
CP
(2V/div)
VSINK
(500mV/div)
IIN
(200mA/div)
Turn On to 1.5X Mode
(VIN = 3.5V; 20mA Load)
200µs/div
EN
(2V/div)
CP
(2V/div)
VSINK
(500mV/div)
IIN
(200mA/div)
Turn On to 2X Mode
(VIN = 2.8V; 20mA Load)
200µs/div
EN
(2V/div)
VF
(1V/div)
IIN
(100mA/div)
Turn Off from 1.5X Mode
(VIN = 3.5V; 20mA Load)
200µs/div
3152.2004.12.0.9
5
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