Datasheet > AIC1620

AIC1620

更新时间： 2024-09-30 22:39:51

品牌	Logo	应用领域
沛亨 - AIC		转换器
页数	文件大小	规格书
12页	457K
描述
High Efficiency Synchronous Step-Up DC/DC Converter

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AIC1620 数据手册

AIC1620/AIC1621/AIC1622

High Efficiency Synchronous Step-Up DC/DC

Converter

DESCRIPTION

FEATURES

l High Efficiency 93% (V_IN=2.4V, V_OUT=3.3V,

The AIC1620/AIC1621/AIC1622 are high effi-

ciency step up DC-DC converter. The start-up

voltage is as low as 0.8V and operate with an

input voltage down to 0.7V. Consuming only

20mA of quiescent current. These devices offer

a built-in synchronous rectifier that reduces

size and cost by eliminating the need for an ex-

ternal Schottky diode and improves overall effi-

ciency by minimizing losses.

I_OUT=200mA).

l 20mA Quiescent Supply Current.

l Power-Saving Shutdown Mode (0.1mA typical).

l Internal Synchronous Rectifier ( no external

diode )

l Selectable Current Limit for Reduced Ripple

( AIC1622 ).

l Low Noise , Anti-Ringing Feature ( AIC1622 )

l On-Chip Low Battery Detector.

l Low Battery Hysteresis

The switching frequency depends on the load

and the input voltage can range up to 500KHz.

The peak current of the internal switch is fixed

at 0.8A (AIC1620), at 0.45A (AIC1621), or is

selectable (AIC1622) for design flexibility. Rip-

ple does not exceed the product of the switch

current limit and the filter capacitor equivalent

series resistance (ESR). The AIC1622 also fea-

tures a circuit that eliminates noise due to in-

ductor ringing.

APPLICATIONS

l Palmtop & Notebook Computers.

l PDAs

l Wireless Phones

l Pocket Organizers.

l Cameras.

l 1 to 2-Cell Hand-Held Devices

TYPICAL APPLICATION CIRCUIT

V_IN

100mF

22mH

Output 3.3V, or

Adj. (1.8V to 4.0V)

up to 300mA

220mF

OFF

SHDN

AIC1620

OUT

AIC1621

AIC1622

Low-Battery

Detect In

LBI

LBO

Low-Battery

Detect Out

REF

FB GND

LBO

0.1mF

Analog Integrations Corporation 4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan

TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw

DS-1620-00 032502

12 3 4 5 6 7...12

中文翻译

下载PDF

与AIC1620相关器件

型号	品牌	获取价格	描述	数据表
AIC1620COTR	AIC	获取价格	High Efficiency Synchronous Step-Up DC/DC Converter
AIC1621	AIC	获取价格	High Efficiency Synchronous Step-Up DC/DC Converter
AIC1621COTR	AIC	获取价格	High Efficiency Synchronous Step-Up DC/DC Converter
AIC1622	AIC	获取价格	High Efficiency Synchronous Step-Up DC/DC Converter
AIC1622COTR	AIC	获取价格	High Efficiency Synchronous Step-Up DC/DC Converter
AIC1628	AIC	获取价格	3-Cell, High-Efficiency, Step-Up DC/DC Converter
AIC1628CN	AIC	获取价格	3-Cell, High-Efficiency, Step-Up DC/DC Converter
AIC1628CS	AIC	获取价格	3-Cell, High-Efficiency, Step-Up DC/DC Converter
AIC1630	AIC	获取价格	2-Cell, Step-Up DC/DC Converter Controller
AIC1630-3CN	AIC	获取价格	2-Cell, Step-Up DC/DC Converter Controller