描述 Description

General Description
The AAT3110 ChargePump is a member of AnalogicTechs Total Power Management IC? (TPMIC?) product family. It is a MicroPower switched capacitor voltage converter that delivers a regulated output. No external inductor is required for operation. Using three small capacitors, the AAT3110 can deliver up to 100mA to the voltage regulated output. The AAT3110 features very low quiescent current and high efficiency over a large portion of its load range, making this device ideal for battery-powered applications. Furthermore, the combination of few external components and small package size keeps the total converter board area to a minimum in space-restricted applications. The AAT3110 operates in an output regulated voltage doubling mode. The regulator uses a pulse skipping technique to provide a regulated output from a varying input supply. The AAT3110 contains a thermal management circuit to protect the device under continuous output short-circuit conditions.

特性 Features

? Step-Up Voltage Converter
? Input Voltage Range:
?? — AAT3110-5: 2.7V to 5V
?? — AAT3110-4.5: 2.7V to 4.5V
? MicroPower Consumption: 13μA
? Regulated 5V, 4.5V ±4% Output
? 5V Output Current:
?? — 100mA with VIN ≥ 3.0V
?? — 50mA with VIN ≥ 2.7V
? 4.5V Output Current:
?? — 100mA with VIN ≥ 3.0V
?? — 50mA with VIN ≥ 2.7V
? Peak Current 250mA for 100ms
? High Frequency 750kHz Operation
? Shutdown Mode Draws Less Than 1μA
? Short-Circuit/Over-Temperature Protection
? 2kV ESD Rating
? SC70JW-8 or SOT23-6 PackageApplications
? Cellular Phones
? Digital Cameras
? Handheld Electronics
? LED/Display Backlight Driver
? LEDs for Camera Flash
? PDAs
? Portable Communication Devices

簡介

AAT3110屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由制造生產(chǎn)的AAT3110穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會通過該元件。