AAT3131 데이터 시트보기 (PDF) - Advanced Analog Technology, Inc.

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AAT3131

High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications

Advanced Analog Technology, Inc. 

AAT3131

High Efficiency 1X/1.5X Fractional

Charge Pump for White LED Applications

Typical Characteristics

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

Turn-On to Full-Scale Charge Pump

Turn-On to Full-Scale Load Switch

ENSET

(1V/div)

OUT

(2V/div)

VDIODE

(1V/div)

IIN

(200mA/div)

Time (50µs/div)

ENSET

(1V/div)

OUT

(2V/div)

VDIODE

(2V/div)

IIN

(100mA/div)

Time (50µs/div)

VIN

(10mV/div)

OUT

(2V/div)

VDIODE

(2V/div)

IIN

(100mA/div)

Charge Pump to Load Switch

(80mA)

Time (50µs/div)

ENSET

(1V/div)

VDIODE

(2V/div)

IIN

(100mA/div)

Turn-Off

Time (200µs/div)

VIN

(20mV/div)

OUT

(1V/div)

VDIODE

(1V/div)

IIN

(200mV/div)

Load Switch to Charge Pump

(80mA)

Time (50µs/div)

80mA Load Characteristics

VIN

OUT

VDIODE

Time (1µs/div)

6

3131.2005.12.1.2

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