Datasheet > 暂无类别数据> MAX1955

MAX1955

更新时间： 2024-10-02 23:45:55

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
22页	618K
描述
1.6V to 5.5V Input.0.5%. Accurate.Dual180°. Out-of-Phase Step-Down Controllers

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

MAX1955 数据手册

19-2623; Rev 0; 1/03

1.6V to 5.5V Input, 0.5% Accurate, Dual

180° Out-of-Phase Step-Down Controllers

General Description

Features

o Operates from a 1.6V to 5.5V Supply (MAX1956)

o 0.5% Output Accuracy

The MAX1955/MAX1956 are dual-output, fixed-frequency,

voltage-mode, pulse-width modulated (PWM) step-down

controllers with 0.5% output accuracy. Each controller

switches at a constant 600kHz and is 180° out-of-phase

with the other controller, reducing input ripple current

and the number of input capacitors.

o 0.8V to 0.9V Output Range

o Up to 25A per Phase Output Current

o On-Chip Boost Regulator Provides 5V Gate Drive

o Up to 93% Efficiency

An on-chip bias supply generates a 5V gate drive to

deliver up to 25A output current per phase with low-cost

N-channel MOSFETs at up to 93% efficiency. Lossless

adjustable current limit eliminates expensive current-

sense resistors and improves efficiency. Foldback current

limit reduces power dissipation during short-circuit

conditions and handles transient overloads better than

controllers using hiccup-mode short-circuit protection.

o 180° Out-of-Phase Operation

o ±±% Voltage Margining

o Lossless, Foldback Current Limit

o Selectable Voltage Sequencing

o Synchronizable to External Clock

o Digital Soft-Start and Soft-Stop

o Small 28-Pin, 5mm ✕ 5mm Thin QFN Package

Output voltage margining shifts output voltage by

±±% from the nominal value to simplify system test.

Outputs also can be powered up and down in select-

able sequences to meet core and logic supply-rail

requirements.

Ordering Information

The MAX1955/MAX1956 are available in a 28-lead thin

QFN package with exposed pad.

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

28 Thin QFN-EP*

MAX1955ETI

Applications

Base Stations

Telecom and Network Equipment

Servers

MAX1956ETI

*EP = Exposed pad.

Pin Configuration appears at end of data sheet.

DSP, ASIC, µP, and FPGA Supplies

Typical Operating Circuit

INPUT

1.6V TO 5.5V

VDD

LXB

BST2

OUTPUT 2

0.8V TO 0.9V

UP TO 25A

BST1

DH2

LX2

OUTPUT 1

0.8V TO 0.9V

UP TO 25A

DH1

LX1

MAX1956

DL2

FB2

DL1

PGND

COMP2

REF

FB1

COMP1

SEQ

GND

ILIM1

SYNCHRONIZATION

CLOCK

VDD

SYNC

ILIM2

ON/OFF

VOLTAGE

MARGINING

________________________________________________________________ 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...22

中文翻译

下载PDF

与MAX1955相关器件

型号	品牌	获取价格	描述	数据表
MAX1955ETI	MAXIM	获取价格	1.6V to 5.5V Input, 0.5% Accurate, Dual 180°
MAX1955ETI-T	MAXIM	获取价格	暂无描述
MAX1955EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX1955/MAX1956
MAX1956	MAXIM	获取价格	1.6V to 5.5V Input.0.5%. Accurate.Dual180°. Out-of-Phase Step-Down Controllers
MAX1956	ADI	获取价格	1.6V至5.5V输入、0.5%精度、双路、180°异相、降压型控制器
MAX1956ETI	MAXIM	获取价格	1.6V to 5.5V Input, 0.5% Accurate, Dual 180°
MAX1956ETI+	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 0.25A, 660kHz Switching Freq-Max, BICMOS, PQCC28,
MAX1956ETI+T	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 0.25A, 660kHz Switching Freq-Max, BICMOS, PQCC28,
MAX1957	MAXIM	获取价格	Low-Cost, High-Frequency, Current-Mode PWM Buck Controller
MAX1957	ADI	获取价格	低成本、高频、电流模式PWM buck控制器

与MAX1955相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

40
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

33
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

30
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

42

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX1955

MAX1955 数据手册

与MAX1955相关器件

与MAX1955相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX1955

MAX1955 数据手册

与MAX1955相关器件

与MAX1955相关文章

您还可以找

您在本页遇到什么问题？