MAX5088

更新时间： 2024-11-02 05:00:11

品牌	Logo	应用领域
美信 - MAXIM		转换器开关
页数	文件大小	规格书
24页	1075K
描述
2.2MHz, 2A Buck Converters with an Integrated High-Side Switch

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MAX5088 数据手册

19-3944; Rev 1; 5/06

2.2MHz, 2A Buck Converters with an

Integrated High-Side Switch

General Description

Features

♦ 4.5V to 5.5V or 5.5V to 23V Input Voltage Range

♦ Output Voltage Adjustable Down to 0.6V

♦ 2A Output Current

The MAX5088/MAX5089 high-frequency, DC-DC con-

verters with an integrated n-channel power MOSFET

provide up to 2A of load current. The MAX5088

includes an internal power MOSFET to enable the

design of a nonsynchronous buck topology power sup-

ply. The MAX5089 is for the design of a synchronous

buck topology power supply. These devices operate

from a 4.5V to 5.5V or 5.5V to 23V input voltage and a

200kHz to 2.2MHz resistor-programmable switching

frequency. The voltage-mode architecture with a peak

switch current-limit scheme provides stable operation

up to a 2.2MHz switching frequency. The MAX5088

includes a clock output for driving a second DC-DC

converter 180° out-of-phase and a power-on-reset

(RESET) output. The MAX5089 includes a power-good

output and a synchronous rectifier driver to drive an

external low-side MOSFET in the buck converter config-

uration for high efficiency.

♦ Synchronous Rectifier Driver Output (MAX5089)

for Higher Efficiency

♦ Resistor-Programmable Switching Frequency

from 200kHz to 2.2MHz

♦ External Synchronization and Enable (On/Off)

Inputs

♦ Clock Output for Driving Second Converter 180°

Out-Of-Phase (MAX5089)

♦ Integrated 150mΩ High-Side n-Channel Power

MOSFET

♦ Power-On Reset Output (MAX5088)/Power-Good

Output (MAX5089)

♦ Short-Circuit Protection

The MAX5088/MAX5089 protect against overcurrent

conditions by utilizing a peak current limit as well as

overtemperature shutdown providing a very reliable

and compact power source for point-of-load regulation

applications. Additional features include synchroniza-

tion, internal digital soft-start, and an enable input. The

MAX5088/MAX5089 are available in a thermally

enhanced, space-saving 16-pin TQFN (5mm x 5mm)

package and operate over the -40°C to +125°C tem-

perature range.

♦ Thermal-Shutdown Protection

♦ Thermally Enhanced 16-Pin TQFN Package

Dissipates 2.7W

Ordering Information

PIN-

PACKAGE

PKG

CODE

PART

TEMP RANGE

MAX5088ATE+ -40°C to +125°C 16 TQFN

MAX5089ATE+ -40°C to +125°C 16 TQFN

+Denotes lead-free package.

T1655-2

Applications

Pin Configurations

xDSL Modem Power Supply

Automotive Radio Power Supply

Servers and Networks

TOP VIEW

IP Phones/WLAN Access Points

SYNC

Selector Guide

RESET 14

V+

PART

CONFIGURATION

FEATURES

MAX5088

Nonsynchronous

Buck

RESET Output,

Clock Output

BST/VDD 15

BYPASS

OSC

MAX5088ATE

EP*

PGOOD Output,

Synchronous FET

Driver

MAX5089ATE

Synchronous Buck

Pin Configurations continued at end of data sheet.

THIN QFN

5mm x 5mm

*EXPOSED PAD.

________________________________________________________________ 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...24

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与MAX5088相关器件

型号	品牌	获取价格	描述	数据表
MAX5088ATE	MAXIM	获取价格	Switching Regulator, Voltage-mode, 3.5A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.8
MAX5088ATE+	MAXIM	获取价格	2.2MHz, 2A Buck Converters with an Integrated High-Side Switch
MAX5089	MAXIM	获取价格	2.2MHz, 2A Buck Converters with an Integrated High-Side Switch
MAX5089ATE	MAXIM	获取价格	Switching Regulator, Voltage-mode, 3.5A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.8
MAX5089ATE+	MAXIM	获取价格	2.2MHz, 2A Buck Converters with an Integrated High-Side Switch
MAX5089ATE+T	MAXIM	获取价格	Switching Regulator, Voltage-mode, 3.5A, 2400kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.8
MAX508ACPP	MAXIM	获取价格	12-Bit Digital-to-Analog Converter
MAX508ACWP	MAXIM	获取价格	D/A CONVERTER
MAX508ACWP+T	MAXIM	获取价格	D/A Converter, 1 Func, Parallel, Word Input Loading, PDSO20, 0.300 INCH, SOIC-20
MAX508AEPP	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 12-BIT DAC, PDIP20, PLASTIC, DIP-20

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