Datasheet > APW7093

APW7093

更新时间： 2024-10-14 22:14:39

品牌	Logo	应用领域
茂达 - ANPEC		稳压器
页数	文件大小	规格书
20页	725K
描述
3A, 1MHz, Step Down DC/DC Regulator

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中文翻译

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APW7093 数据手册

APW7093

3A, 1MHz, Step Down DC/DC Regulator

General Description

Features

Source/Sink 3A

The APW7093 is a reversible energy flow, constant-

off-time, pulse-width modulated (PWM), step-down

DC-DC converter. It is ideal for use in notebook and

sub-notebook computers that require 1.1V to 5V

activetermination power supplies. Thisdevice features

an internal PMOS power switch and internal

synchronous rectifier for high efficiency and reduced

Up to 1MHz Switches Frequency

Up to 94% Efficiency

Internal PMOS/NMOS Switches

- 70mW/40mW On-Resistance at VIN = 4.5V

- 90mW/60mW On-Resistance at VIN = 3V

±1% Output Accuracy

component count. The internal 90mW PMOS power

1.1V to VIN Adjustable Output Voltage

3V to +5.5V Input Voltage Range

<1mA Shutdown Supply Current

switchand 60mW NMOS synchronous-rectifier switch

easily deliver continuous load currents up to 3A. The

APW7093 accurately tracks an external reference

voltage, produces an adjustable output from 1.1V to

VIN, and achieves efficiencies as high as 94%.

Programmable Constant-Off-Time Operation

Thermal Shutdown

The APW7093 uses a unique current-mode,

constant-off-time, PWM control scheme that allows

the output to source or sink current. This feature

allows energy to return to the input power supply that

otherwise would be wasted. The programmable

constant-off-timearchitecturesetsswitchingfrequencies

upto1MHz, allowingthe user tooptimizeperformance

trade-offs between efficiency, output switching noise,

component size, and cost. TheAPW7093 features an

adjustable soft-start to limit surge currents during

startup, a 100% duty-cycle mode for low-dropout

operation, and alow-power shutdown mode that disables

the power switches and reduces supply current below

1µA. TheAPW7093 is available in a 32-pin QFN with

an exposed backside pad or a 16-pin SSOP.

Adjustable Soft-Start Inrush Current Limiting

Output Short-Circuit Protection

Lead Free Available (RoHS Compliant)

Applications

Motherboard

Graphics Cards

Cable or DSL Modems, Set Top Boxes

DSP Supplies

Memory Supplies

5V Input DC-DC Regulators

Distributed Power Supplies

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

www.anpec.com.tw

Rev. A.5 - Jun., 2005

12 3 4 5 6 7...20

中文翻译

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与APW7093相关器件

型号	品牌	获取价格	描述	数据表
APW7093N	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093NI-TR	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093NI-TRL	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093NI-TU	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093NI-TUL	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093QA	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093QAI-TR	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093QAI-TRL	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093QAI-TU	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator
APW7093QAI-TUL	ANPEC	获取价格	3A, 1MHz, Step Down DC/DC Regulator

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