SC613EVB

更新时间： 2024-09-17 03:33:23

品牌	Logo	应用领域
商升特 - SEMTECH		泵
页数	文件大小	规格书
14页	375K
描述
Low Noise Regulated Charge Pump with Selectable Output

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SC613EVB 数据手册

SC613

Low Noise Regulated Charge

Pump with Selectable Output

POWER MANAGEMENT

Description

Features

The SC613 is a versatile charge pump designed for use in battery

operated power supply applications. The wide input range is

matched for Li-Ion battery applications. Only two 1uF ceramic

bucket capacitors are required, and the inductorless implementa-

tion provides a reduced-EMI solution. Low noise mode switching

circuitry and constant output current allow the use of 1uF input

and output capacitors.

ꢀ

Small size - MLP Micro 10 lead 3x3mm package

ꢀ Selectable 5.0V or 4.5V output voltage

ꢀ

ꢀ Short circuit protection

ꢀ Soft Start function

ꢀ Shutdown current <2µA

140mA available with 4.5V output

100mA available with 5.0V output

ꢀ

Selectable fixed frequencies of 262kHz and 650kHz

Low ripple

The SC613 charge pump regulator can be used for applications

that require up to 140mA of output current with a 4.5V output.

The 5.0V output version provides up to 100mA of output current.

The small package size, low component count and lower overall

system cost coupled with its low noise make the SC613 a supe-

rior solution compared to switch mode regulator designs.

ꢀ Regulated to +/-5%

Ease of use

ꢀ

Applications

ꢀ

Cellular phones

ꢀ LED photo flash for cellular phones

ꢀ LED backlighting

ꢀ PDA power supplies

ꢀ Portable electronics

ꢀ Electronic books

Typical Application Circuit

ꢀ Wireless web appliances

2.7V to 6.5V

VIN

VOUT

CF1+

4.5V or 5.0V

Cin

1.0uF

Cout

1.0uF

Cbucket1

1.0uF

CF1-

CF2+

CF2-

UP TO 10 LEDS

FSEL

VSEL

Cbucket2

1.0uF

GND

February 8, 2005

www.semtech.com

12 3 4 5 6 7...14

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