Datasheet > AAT3111

AAT3111

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
AAT		泵
页数	文件大小	规格书
16页	362K
描述
MicroPower⑩ Regulated Charge Pump

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AAT3111 数据手册

AAT3111

MicroPower™ Regulated Charge Pump

™

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General Description

Features

The AAT3111 ChargePump is a MicroPower

switched capacitor voltage converter that delivers a

regulated output. No external inductor is required

for operation. Using three small capacitors, the

AAT3111 can deliver up to 150mA to the voltage

regulated output. The AAT3111 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.

•

Step-Up Type Voltage Converter

Input Voltage Range:

— AAT3111-3.6: 1.8V to 3.6V

— AAT3111-3.3: 1.8V to 3.3V

MicroPower Consumption: 20µA

3.6V, 3.3V Regulated ±4% Output

3.6V Output Current

— 100mA with V_IN≥ 3.0V

— 20mA with V_IN≥ 2.0V

3.3V Output Current

•

— 100mA with V_IN≥ 2.5V

— 20mA with V_IN≥ 1.8V

•

High Frequency 750kHz Operation

Shutdown Mode Draws Less Than 1µA

Short-Circuit/Over-Temperature Protection

2kV ESD Rating

The AAT3111 operates in an output-regulated volt-

age doubling mode. The regulator uses a pulse-

skipping technique to provide a regulated output

from a varying input supply. The AAT3111 contains

a thermal management circuit to protect the device

under continuous output short-circuit conditions.

SC70JW-8 or SOT23-6 Package

The AAT3111 is available in a Pb-free, surface-

mount 6-pin SOT23 or 8-pin SC70JW package and

is rated over the -40°C to +85°C temperature

range.

Applications

•

Battery Back-Up Supplies

Digital Cameras

Handheld Electronics

MP3 Players

PDAs

Typical Application

AAT3111

V_OUT

VOUT

C+

VIN

C-

1uF

C_OUT

10uF

V_IN

GND

ON/OFF

SHDN

C_IN

10uF

3111.2006.06.1.3

12 3 4 5 6 7...16

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