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MAX16955AUE

更新时间： 2024-09-16 11:18:19

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
26页	2096K
描述
36V, 1MHz Step-Down Controller with Low Operating Current

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数据手册

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MAX16955AUE 数据手册

19-5781; Rev 0; 3/11

36V, 1MHz Step-Down Controller

with Low Operating Current

MAX1695

General Description

Features

♦ Wide 3.5V to 36V Input Voltage Range

♦ 42V Input Transient Tolerance

The MAX16955 is a current-mode, synchronous PWM

step-down controller designed to operate with input volt-

ages from 3.5V to 36V while using only 50μA of quies-

cent current at no load. The switching frequency is

adjustable from 220kHz to 1MHz by an external resistor

and can be synchronized to an external clock up to

1.1MHz. The MAX16955 output voltage is pin program-

mable to be either 5V fixed, or adjustable from 1V to

13V. The wide input voltage range, along with its ability

to operate in dropout during undervoltage transients,

makes it ideal for automotive and industrial applications.

♦ High Duty Cycle During Undervoltage Transients

♦ 220kHz to 1MHz Adjustable Switching Frequency

♦ Current-Mode Control Architecture

♦ Adjustable (1V to 13V) Output Voltage with 2ꢀ

Accuracy

♦ Three Operating Modes

50µA Ultra-Low Quiescent Current Skip Mode

Forced Fixed-Frequency Mode

External Frequency Synchronization

The MAX16955 operates in fixed-frequency PWM mode

and low quiescent current skip mode. It features an

enable logic input, which is compatible up to 42V to

disable the device and reduce its shutdown current to

10μA. Protection features include overcurrent limit,

overvoltage, undervoltage, and thermal shutdown with

automatic recovery. The device also features a power-

good monitor to ease power-supply sequencing.

♦ Lowest BOM Count, Current-Mode Control

Architecture

♦ Power-Good Output

♦ Enable Input Compatible from 3.3V Logic Level to

42V

♦ Current-Limit, Thermal Shutdown, and

Overvoltage Protection

The MAX16955 is available in a thermally enhanced 16-

pin TSSOP package with exposed pad and is specified

for operation over the -40°C to +125°C automotive tem-

perature range.

♦ -40°C to +125°C Automotive Temperature Range

♦ Automotive Qualified

Typical Operating Circuit

Applications

BAT

Automotive

Industrial

BST

SUP

COMP

BST

Military

COMP

Point of Load

COMP2

MAX16955

COMP1

Ordering Information

SENSE

PGOOD

PART

TEMP RANGE

PIN-PACKAGE

PGND

MAX16955AUE/V+

-40°C to +125°C

16 TSSOP-EP*

FSYNC

OUT

/V denotes an automotive qualified part.

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

OUT

FOSC

OUT

BIAS

FOSC

SGND

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...26

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与MAX16955AUE相关器件

型号	品牌	获取价格	描述	数据表
MAX16955AUE/V+	MAXIM	获取价格	Switching Controller, Current-mode, 1000kHz Switching Freq-Max, BICMOS, PDSO16, ROHS COMPL
MAX16955AUE/V+T	MAXIM	获取价格	Switching Regulator/Controller, Current-mode, 440kHz Switching Freq-Max, BICMOS, PDSO16,
MAX16955AUE+	MAXIM	获取价格	Switching Controller, Current-mode, 1100kHz Switching Freq-Max, BICMOS, PDSO16, TSSOP-16
MAX16955AUE+T	MAXIM	获取价格	Switching Controller, Current-mode, 1100kHz Switching Freq-Max, BICMOS, PDSO16, TSSOP-16
MAX16955AUV	MAXIM	获取价格	36V, 1MHz Step-Down Controller with Low Operating Current
MAX16956	ADI	获取价格	36V、300mA、微型降压转换器，1.1μA IQ
MAX16956AUBA/V+	MAXIM	获取价格	Switching Regulator, Current-mode, 0.575A, 2250kHz Switching Freq-Max, PDSO10, 3 X 3 MM, R
MAX16956AUBA+	MAXIM	获取价格	Switching Regulator, Current-mode, 0.575A, 2250kHz Switching Freq-Max, PDSO10, 3 X 3 MM, R
MAX16956AUBA+T	MAXIM	获取价格	Switching Regulator/Controller, Current-mode, 0.3A, 2250kHz Switching Freq-Max, PDSO10,
MAX16956AUBB/V+	MAXIM	获取价格	Switching Regulator, Current-mode, 0.575A, 2250kHz Switching Freq-Max, PDSO10, 3 X 3 MM, R

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