AAT3112_07 datasheet(7/16 Pages) ANALOGICTECH

Part #	AAT3112

Description	500mA High Efficiency Charge Pump for White LED Flash Applications

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	ANALOGICTECH [Advanced Analogic Technologies]

Direct Link	http://www.analogictech.com

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AAT3112

500mA High Efficiency Charge Pump

for White LED Flash Applications

3112.2007.01.1.5

Typical Characteristics-AAT3112-4.5V

VIN = 3.5V, CIN = COUT = 10μF, C1 = C2 = 1μF; TA = 25°C, unless otherwise noted.

Output Current vs. Input Voltage (70°C)

(VOUT > 4.0V)

Input Voltage (V)

100

200

300

400

500

600

700

800

2.5

3.0

3.5

4.0

4.5

50ms

100ms

200ms 300ms

500ms

Output Current vs. Input Voltage

(500ms Pulse Time; VOUT > 4.0V)

Input Voltage (V)

100

200

300

400

500

600

700

800

2.5

3.5

4.5

Input and Output Ripples

(IOUT = 100mA @ VIN = 3.5V)

Time (5µs/div)

VOUT

AC Coupled

(20mV/div)

VIN

AC Coupled

(20mV/div)

Input and Output Ripples

(IOUT = 50mA @ VIN = 3.5V)

Time (5µs/div)

VOUT

AC Coupled

(20mV/div)

VIN

AC Coupled

(20mV/div)

Load Transient Response

(VIN = 4.2V)

Time (50µs/div)

IOUT

(200mA/div)

VOUT

(20mV/div)

Load Transient Response

(VIN = 3.0V)

Time (50µs/div)

IOUT

(200mA/div)

VOUT

(20mV/div)

AAT3112 Datasheet(PDF) 7 Page - Advanced Analogic Technologies

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