MAX5083ATE

更新时间： 2024-11-02 05:00:11

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
18页	404K
描述
1.5A, 40V, MAXPower Step-Down DC-DC Converters

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替代型号

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MAX5083ATE 数据手册

19-3657; Rev 0; 5/05

1.5A, 40V, MAXPower Step-Down

DC-DC Converters

General Description

Features

The MAX5082/MAX5083 are 250kHz PWM step-down

DC-DC converters with an on-chip, 0.3Ω high-side

switch. The input voltage range is 4.5V to 40V for the

MAX5082 and 7.5V to 40V for the MAX5083. The output

is adjustable from 1.23V to 32V and can deliver up to

1.5A of load current.

♦ 4.5V to 40V (MAX5082) or 7.5V to 40V (MAX5083)

Input Voltage Range

♦ 1.5A Output Current

♦ V

Range From 1.23V to 32V

OUT

♦ Internal High-Side Switch

Both devices utilize a voltage-mode control scheme for

good noise immunity in the high-voltage switching envi-

ronment and offer external compensation allowing for

maximum flexibility with a wide selection of inductor val-

ues and capacitor types. The switching frequency is

internally fixed at 250kHz and can be synchronized to

an external clock signal through the SYNC input. Light

load efficiency is improved by automatically switching

to a pulse-skip mode.

♦ Fixed 250kHz Internal Oscillator

♦ Automatic Switchover to Pulse-Skip Mode at

Light Loads

♦ External Frequency Synchronization

♦ Thermal Shutdown and Short-Circuit Protection

♦ Operates Over the -40°C to +125°C Temperature

All devices include programmable undervoltage lock-

out and soft-start. Protection features include cycle-by-

cycle current limit, hiccup-mode output short-circuit

protection, and thermal shutdown. Both devices are

available in a space-saving, high-power (2.7W), 16-pin

TQFN package and are rated for operation over the

-40°C to +125°C temperature range.

Range

♦ Space-Saving (5mm x 5mm) High-Power 16-Pin

TQFN Package

Ordering Information

PART

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

16 TQFN-EP*

Applications

MAX5082ATE

MAX5083ATE

FireWire^®Power Supplies

Distributed Power

Automotive

Industrial

*EP = Exposed pad.

Pin Configurations appear at end of data sheet.

FireWire is a registered trademark of Apple Computer, Inc.

Typical Operating Circuits

4.5V TO 40V

BST

DVREG

C-

C+

BST

OUT

REG

MAX5082

ON/OFF

SYNC SGND PGND

COMP

PGND

Typical Operating Circuits continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...18

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MAX5083ATE 替代型号

型号	品牌	替代类型	描述	数据表
MAX5083ATE+	MAXIM	完全替代	Switching Regulator, Voltage-mode, 3A, 275kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.80 M

与MAX5083ATE相关器件

型号	品牌	获取价格	描述	数据表
MAX5083ATE+	MAXIM	获取价格	Switching Regulator, Voltage-mode, 3A, 275kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.80 M
MAX5083ATE-T	MAXIM	获取价格	Switching Regulator, Voltage-mode, 3A, 275kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.80 M
MAX5084	MAXIM	获取价格	Ultra Low Dropout, 7.0A Adjustable Positive Linear Regulator Thru-Hole (MO-078AA
MAX5084	ADI	获取价格	65V、200mA、低静态电流线性稳压器，TDFN封装
MAX5084ATT+T	MAXIM	获取价格	Fixed/Adjustable Positive Standard Regulator, 5V, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, LEAD F
MAX5085	ADI	获取价格	65V、200mA、低静态电流线性稳压器，TDFN封装
MAX5086	MAXIM	获取价格	MAX5086 Evaluation Kit
MAX5086	ADI	获取价格	45V、250mA、低静态电流线性稳压器，带有可调节复位延时
MAX5086_08	MAXIM	获取价格	45V, 250mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay
MAX5086AATE	MAXIM	获取价格	45V, 250mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay

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