A8697

更新时间： 2024-11-12 03:17:07

品牌	Logo	应用领域
急速微 - ALLEGRO		稳压器
页数	文件大小	规格书
12页	614K
描述
Wide Input Voltage 4.0 A Step Down Regulator

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

A8697 数据手册

A8697

Wide Input Voltage 4.0 A Step Down Regulator

Features and Benefits

Description

▪ 8 to 25 V input range

▪ Integrated DMOS switch

▪ Adjustable fixed off-time

▪ Adjustable output

The A8697 is a constant off-time current mode step-down

regulatorwithawideinputvoltagerange.Regulationvoltageis

set by external resistors, to output voltages as low as 0.8 V.

The A8697 includes an integrated power DMOS switch to

reduce the total solution footprint. It also features internal

compensation, allowing users to design stable regulators with

minimal design efforts.

The off-time can be set with an external resistor, allowing

flexibility in inductor selection. Additionally, the A8697 has

a logic level enable pin which can shut the device down and

put it into a low quiescent current mode for power sensitive

applications.

The A8697 is supplied in a low-profile 8-lead SOIC with

exposed pad (package LJ). Applications include:

Package: 8-Lead SOIC with exposed

thermal pad (suffix LJ)

▪ Applications with 8 to 25 V input

▪ Consumer electronics, networking equipment

▪ 12 V lighter-powered applications (portable DVD, etc.)

▪ Point of Sale (POS) applications

Approximate Scale 1:1

Typical Application

V_IN

+12 V

Efficiency versus Load Current

CIN

47 μF

25 V

CBOOT

0.01 μF

VOUT = 2.5 V

VOUT = 1.8 V

VOUT = 1.06 V

BOOT

ENB

VIN

V_OUT

1.06 V/ 4.0 A

A8697

3.8 μH

2 k7

TSET

VBIAS

COUT

150 μF

56 mΩ

RTSET

51.1 k7

GND

6.14 k7

Ratings:

L: CDRH104R-3R8

COUT: EEUFM1V151

CIN: EEVFC1H470P

Load Current (A)

Circuit for 12 V step down to 1.06 V at 4 A

Efficiency curve for circuit at left

A8697-DS, Rev. 2

12 3 4 5 6 7...12

中文翻译

下载PDF

与A8697相关器件

型号	品牌	获取价格	描述	数据表
A8697ELJ-T	ALLEGRO	获取价格	Wide Input Voltage 4.0 A Step Down Regulator
A8697ELJTR-T	ALLEGRO	获取价格	Wide Input Voltage 4.0 A Step Down Regulator
A8698	ALLEGRO	获取价格	Wide Input Voltage 3.0 A Step Down Regulator
A8698ELJ-T	ALLEGRO	获取价格	Wide Input Voltage 3.0 A Step Down Regulator
A8698ELJTR-T	ALLEGRO	获取价格	Wide Input Voltage 3.0 A Step Down Regulator
A-869T	MOLEX	获取价格	Avikrimp™ Snap Plug
A86PM37		获取价格	Panels and Panel Accessories
A86PM37G		获取价格	Panels and Panel Accessories
A86PM75		获取价格	Panels and Panel Accessories
A86PM75G		获取价格	Panels and Panel Accessories