Datasheet > AIC1641-27CS

AIC1641-27CS

更新时间： 2024-09-12 22:47:43

品牌	Logo	应用领域
其他 - ETC		转换器
页数	文件大小	规格书
12页	162K
描述
LOW VOLTAGE STEP-UP DC/DC CONVERTER

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数据手册

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AIC1641-27CS 数据手册

AIC1641

LOW VOLTAGE STEP-UP DC/DC CONVERTER

SPEC NO: DS-1641-00 05/04/00

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FEATURES

DESCRIPTION

Guaranteed Start-Up from Below 0.9 V.

The AIC1641 is a high efficiency step-up DC/DC

converter for applications using 1 to 4 battery cells.

Only three external components are required to de-

liver a fixed output voltage of 2.7V, 3.0V, 3.3V, or

5.0V.

High Efficiency.

Low Quiescent Current.

Fixed Output Voltage: 2.7V, 3.0V, 3.3V, and 5V.

Logic Controlled Shutdown.

External Switch Driver for High Power Level Applica-

tion.

Pulse Frequency Modulation scheme brings opti-

mized performance for applications with light output

loading and low input voltage. The output ripple

and noise are lower compared with the circuit op-

erating in PSM mode. The AIC1641 starts up from

below 0.9V input to boost either 2.7V, 3.0V, 3.3V,

or 5.0V output with 1mA load.

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APPLICATIONS

Pagers.

Cameras.

Wireless Microphones.

Pocket Organizers.

Battery Backup Suppliers.

Portable Instruments.

Some useful features include, shutdown mode for

saving the life of battery. The PFM control circuit

operates in 100KHz (max.) switching rate, resulting

in smaller passive component size, which makes

the AIC1641 an ideal choice of DC/DC converter

for space conscious applications.

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TYPICAL APPLICATION CIRCUIT

OUT

47µF

OUT

GND

1N5819

EXT

V_IN

AIC1641

33µH

ꢀ0.9V

10nF

2SD1803

300

One Cell Step-Up DC/DC Converter

ANALOG INTEGRATIONS CORPORATION

4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.

www.analog.com.tw

TEL: (8863)577-2500 FAX:(8863)577-2510

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