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MAX17552

MAX17552, MAX17552A

60V、100mA、超小尺寸、高效率、 同步降压型DC-DC转换器,空载耗流为22μA

60V、低IQ同步降压稳压器实现高效率

数据资料
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概述

说明

MAX17552是一款内置MOSFET, 高效、高压、同步降压型的DC-DC转换器,可工作在4V至60V输入电压范围。 转换器在0.8V至0.9 x VIN输出电压范围内,可提供高达100mA的输出电流。在-40°C至+125°C工作温度范围,输 出电压精度为不低于±1.75%。
器件采用峰值电流模式控制架构,有一个MODE引脚,可 用于选择脉宽调制(PWM)或脉冲频率调制(PFM)工作模式。 PWM工作模式在任何负载条件下都保持固定工作频率, 非常适用于对开关频率变化敏感的应用。PFM工作模式消除了负向电感电流以及轻载时使用跳脉冲以提高效率。 PFM模式下,转换器的空载耗流仅为22μA。低导通电阻的内置MOSFET确保满载时高效率,同时也简化了PCB的设计。
器件具有可编程开关频率,以优化方案尺寸和效率。可编程软启动功能降低用户浪涌电流。一个EN/UVLO引脚允许用户在输入电压达到相应要求值时开启/关断器件。开漏RESET引脚可以监控输出电压。器件工作在-40°C至 +125°C工业级温度范围,有10引脚(3mm x 2mm) TDFN 和10引脚(3mm x 3mm) μMAX®两种很小的封装。提供仿真模型。
MAX17552: Typical Application Circuit MAX17552: Typical Application Circuit 放大+

关键特性

  • 减少外部元器件,降低总体成本
    • 无需肖特基二极管——同步整流工作高效、低成本
    • 内部补偿
    • 内部固定的5.1ms或可编程软启动
    • 可全用陶瓷电容,使紧凑布局
  • 缩减DC-DC稳压器库存清单
    • 4V至60V宽输入电压范围
    • 0.8V至0.9 x VIN输出电压可调节
    • 提供高达100mA负载电流
    • 100kHz至2.2MHz可调节开关频率范围,带外同步
    • 可配置PFM和强制PWM两种工作模式
  • 降低功耗
    • 22μA空载电流
    • 峰值效率>90%
    • PFM特性使轻载时效率高
    • 1.2μA (典型值)关断电流
  • 能在恶劣工业环境下可靠工作
    • 峰值限流保护
    • 有内置输出电压监测的开漏RESET输入引脚
    • 可编程EN/UVLO门限
    • 启动时单调进入预偏置输出
    • 过热保护
    • 高工业级-40°C至+125°C工作范围/ -40°C至+150°C结温范围

应用

  • 4–20mA电流环供电传感器
  • 电池供电设备
  • 通用负载点电源
  • 替代高压LDO
  • HVAC与楼宇控制
  • 工业传感器和过程控制

参数规格

Part NumberVIN
(V)		VIN
(V)		VOUT1
(V)		VOUT1
(V)		Output Adjust. MethodIOUT1
(A)		Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)		Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17552 4600.854Resistor0.1InternalYesYes12200EE-Sim
TDFN/10
UMAX/10
$1.10 @1k
查看所有Step-Down Switching Regulators (367)
Pricing Notes:
价格仅供参考，用于同类产品的比较。所提供报价为美元，需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题，请参考：价格与供货网站或与指定代理商联系。

设计资源


MAX17552AUBEVKIT: Evaluation Kit for the MAX17552 (µMAX) in 5V Output-Voltage Application
MAX17552ATBEVKIT: Evaluation Kit for the MAX17552 (TDFN) in 5V Output Voltage Applications

技术资料

产品手册 6362 Powering the Pocket IO PLC Development Platform
应用笔记 6262 RTD Measurement System Design Essentials
用户指南 6080 MAXREFDES79# IO-Link Master Quick Start Guide
用户指南 5880 MAXREFDES36# IO-Link 16-Channel Digital Input Hub Quick Start Guide
用户指南 5863 MAXREFDES27# IO-Link Proximity Sensor Quick Start Guide
用户指南 5861 EE-SIM Design and Simulation Environment User Guide

质量和环境数据

产品可靠性报告: MAX17552.pdf 
申请可靠性报告: MAX17552A 
无铅封装的锡（Sn）晶须报告

工具和模型

  • EE-Sim: MAX17552 设计和仿真
  • MAX17552 SIMPLIS Schematic

    • CAD Symbols and Footprints

  • MAX17552AATB+
  • MAX17552AATB+T
  • MAX17552AAUB+
  • MAX17552AAUB+T
  • MAX17552ATB+
  • MAX17552ATB+T
  • MAX17552AUB+
  • MAX17552AUB+T
    •

    质量与环境

    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注： 通过技术手段对故障率进行汇总，并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

    质量管理体系 >
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    工具和模型

    技术文档

    参考设计

    类型 编号 标题
    系统板6185MAXREFDES67#：通用输入微型PLC
    系统板5952MAXREFDES60#：16位模拟输出微型PLC
    系统板5879MAXREFDES36#：16通道IO-LINK数字输入集线器
    系统板5868MAXREFDES27#：IO-LINK接近检测光传感器
    评估板8475MAX17552ATBEVKIT Evaluation Kit for the MAX17552 (TDFN) in 5V Output Voltage Applications
    评估板8472MAX17552AUBEVKIT Evaluation Kit for the MAX17552 (µMAX) in 5V Output-Voltage Application