MAX16909

更新时间： 2024-11-06 11:18:23

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
18页	2415K
描述
36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current

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MAX16909 数据手册

19-5777; Rev 0; 3/11

MAX16909

36V, 220kHz to 1MHz Step-Down Converter

with Low Operating Current

General Description

Features

The MAX16909 is a 3A, current-mode, step-down con-

verter with an integrated high-side switch. The device is

designed to operate with input voltages from 3.5V to 36V

while using only 30FA quiescent 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. The output voltage is pin selectable to

be 5V fixed or adjustable from 1V to 10V. The wide input

voltage range along with its ability to operate at high duty

cycle during undervoltage transients make the device

ideal for automotive and industrial applications.

S Wide 3.5V to 36V Input Voltage Range

S 42V Input Transients Tolerance

S High Duty Cycle During Undervoltage Transients

S 5V Fixed or 1V to 10V Adjustable Output Voltage

S Integrated 3A Internal High-Side (70mI typ)

Switch

S Fast Load-Transient Response and Current-Mode

Architecture

S Adjustable Switching Frequency (220kHz to 1MHz)

S Frequency Synchronization Input

The device operates in skip mode for reduced current

consumption in light-load applications. Protection features

include overcurrent limit, overvoltage, and thermal shut-

down with automatic recovery. The device also features

a power-good monitor to ease power-supply sequencing.

S 30µA Standby Mode Operating Current

S 5µA Typical Shutdown Current

S Overvoltage, Undervoltage, Overtemperature, and

Short-Circuit Protections

The device operates over the -40NC to +125NC automo-

tive temperature range, and is available in 16-pin TSSOP

and TQFN (5mm x 5mm) packages with exposed pads.

Ordering Information appears at end of data sheet.

Applications

Automotive

For related parts and recommended products to use with this part,

refer to: www.maxim-ic.com/MAX16909.related

Industrial/Military

High-Voltage Input DC-DC Converter

Point-of-Load Applications

Typical Application Circuit

VBAT

47µF

IN2

4.7µF

IN1

BST

0.1µF

SUP

SUPSW

BST

10µH

OUT

5V AT 3A

FSYNC

100µF

OUT

MAX16909

OUT

COMP

COMP1

2.7nF

BIAS

FOSC

COMP2

10pF

65kI

BIAS

COMP

47kI

FOSC

BIAS

PGOOD

10kI

PGOOD

POWER GOOD

BIAS

1µF

GND

�� 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...18

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与MAX16909相关器件

型号	品牌	获取价格	描述	数据表
MAX16909_12	MAXIM	获取价格	36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current
MAX16909RATE	MAXIM	获取价格	36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current
MAX16909RATE/V+	MAXIM	获取价格	Switching Regulator, Current-mode, 6A, 1000kHz Switching Freq-Max, BICMOS, TQFN-16
MAX16909RATE+	MAXIM	获取价格	Switching Regulator, Current-mode, 3A, 444kHz Switching Freq-Max, BICMOS, PQCC16,
MAX16909RATV	MAXIM	获取价格	36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current
MAX16909RAUE	MAXIM	获取价格	36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current
MAX16909RAUE/V+	MAXIM	获取价格	暂无描述
MAX16909RAUE+	MAXIM	获取价格	Switching Regulator, Current-mode, 3A, 444kHz Switching Freq-Max, BICMOS, PDSO16,
MAX16909RAUE+CFZ	MAXIM	获取价格	Switching Regulator,
MAX16909RAUV	MAXIM	获取价格	36V, 220kHz to 1MHz Step-Down Converter with Low Operating Current

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