Datasheet > AAT3112IVN-5.0-T1

AAT3112IVN-5.0-T1

更新时间： 2024-11-17 22:11:59

品牌	Logo	应用领域
ANALOGICTECH		闪光灯泵
页数	文件大小	规格书
16页	354K
描述
500mA High Efficiency Charge Pump for White LED Flash Applications

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AAT3112

500mA High Efficiency Charge Pump

for White LED Flash Applications

™

ChargePump

General Description

Features

The AAT3112 is a member of AnalogicTech's Total

Power Management IC™ (TPMIC™) family. It is a

dual voltage doubling charge pump that provides a

regulated output voltage. It operates with an input

voltage range of 2.7 to 5.0 volts. The device can

deliver a constant 200mA output load current and up

to 500mA of pulsed current. The 500mA peak cur-

rent capability of the AAT3112 makes it ideal for

white LED flash applications. A low external parts

count (two 1µF flying capacitors and two small

capacitors at V_INand V_OUT) makes the AAT3112 ide-

ally suited for small battery-powered applications.

•

Input Voltage Range:

•

AAT3112-5.0: 2.7V to 5.0V

AAT3112-4.5: 2.7V to 4.5V

•

Up to 500mA Peak Output Current

200mA Continuous Output Current

I_Q<1µA in Shutdown

Regulated 4.5V or 5.0V Output

26µA of Quiescent Current

Small Application Circuit

Automatic Soft Start

No Inductors

Short-Circuit/Over-Temperature Protection

16-Pin 3x3mm QFN Package

Temperature Range: -40°C to +85°C

The AAT3112 has a thermal management system

to protect the device in the event of a short-circuit

condition at the output pin. Built-in soft-start circuit-

ry prevents excessive inrush current during start-

up. A high charge pump switching frequency

enables the use of very small external capacitors.

A low current shutdown feature disconnects the

load from V_INand reduces quiescent current to less

than 1µA. The AAT3112 is available in a 16-pin

3x3mm QFN package and is rated over the -40°C

to +85°C temperature range.

Applications

•

General-Purpose High-Current Boost Supply

White LED Backlighting

White LED Photo Flash

Typical Application

C1 = 1µF

C2 = 1µF

C2⁺C2^-

V_OUT1

C1⁺C1^-

V_IN

C_IN

C_OUT

V_OUT2

AAT3112

EN1

EN2

Enable Light

Enable Flash

R_B

GND

3112.2004.12.1.2

12 3 4 5 6 7...16

中文翻译

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AAT3113	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
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AAT3113_08	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3113ISN-20-T1	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
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AAT3113ITP-20-T1	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3113ITP-20-T1	SKYWORKS	获取价格	LED Driver, PDSO12,
AAT3113ITP-20-T1	AAT	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
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AAT3114	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications

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