Datasheet > CM3708AIT

CM3708AIT

更新时间： 2024-02-21 10:41:08

品牌	Logo	应用领域
虹冠电子 - CHAMP		稳压器
页数	文件大小	规格书
6页	219K
描述
3A LOW-NOISE PWM STEP-DOWN REGULATOR

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CM3708AIT 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.58
Base Number Matches：	1

CM3708AIT 数据手册

CM3708A

3A L^OW-NOISE PWM STEP-DOWN REGULATOR

GENERAL DESCRIPTION

FEATURES

The CM3708A is a low-noise, pulse-width-modulated (PWM),

DC-DC step-down converter. It powers logic and transmitters

in small wireless systems such as cellular phones,

communicating PDAs, and handy-terminals. The device

features an internal synchronous rectifier for high efficiency; it

requires no external Schottky diode. Excellent noise

characteristics and fixed-frequency operation provide easy

post-filtering. The CM3708A is ideally suited for Li-lon battery

applications. It is also useful for +3V or +5V fixed input

applications.

Patent Filed #6,452,366

600KHz switching and synchronization

Dynamic output-voltage adjustment from VREF to VIN

3A Guaranteed Output Current

95% Efficiency

No Schottky Diode Required

16-pin PSOP/PTSSOP power packages

6A Low Noise Current Limit Protection

External Soft Start

The device operates in one of four modes. Forced PWM

mode operates at a fixed frequency regardless of the load.

Shutdown mode places the device in standby, reducing

quiescent supply current to under 0.1μA.

Rail to Rail output Buck Converter

The CM3708A can deliver over 3.0A. The output voltage can

be adjusted from VREF to VIN. The input range is from 2.0V

to 5.5V. Other features of the CM3708A include high

efficiency, low dropout voltage. It is available in

space-saving 16-pin SOP & TSSOP package.

APPLICATIONS

Cellular Phone

CPU I/O Supplies

Cordless Phone

Notebook Chipset Supplies

Battery Operated Devices

PDAs and Handy-Terminals

AGP Chipset Supplies

PIN CONFIGURATION

PSOP-16 (PS16) / PTSSOP-16 (PT16)

Top View

VIN2

PVIN2

LX2

VIN1

PVIN1

LX1

PGND2

AGND

VFB

PGND1

AGND

VREF

AGSEN

AGND

2007/02/13 Rev1.3

Champion Microelectronic Corporation

Page 1

12 3 4 5 6

中文翻译

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