MAX17531

4V至42V、50mA、超小、高效、同步降压型DC-DC转换器,空载耗流仅为22µA

42V、低IQ、同步Buck调节器,支持高效率


点击查看特定型号的库存状况。

说明

MAX17531高效、高压、同步降压型DC-DC转换器,内置MOSFET,工作在4V至42V输入电压范围。转换器可提供高达50mA输出电流,输出电压为0.8V至0.9 x VIN。在-40°C至+125°C工作温度范围,反馈(FB)电压精度在±1.75%范围之内。

MAX17531采用峰值电流控制模式,可工作在脉宽调制(PWM)或脉冲频率调制(PFM)模式。

器件采用10引脚(3mm x 2mm) TDFN和10引脚(3mm x 3mm) µMAX®封装。提供仿真模式。
MAX17531: Typical Application Circuit MAX17531: Typical Application Circuit 放大+

关键特性

  • 减少外部元件,降低总体成本
    • 无肖特基同步
    • 内部补偿,在任意输出电压下均可稳定工作
    • 内置软启动
    • 全陶瓷电容设计,提供紧凑布局
  • 缩减DC-DC调节器材料清单
    • 4V至42V较宽输入范围
    • 0.8V以上至0.9 x VIN可调节输出
    • 100kHz至2.2MHz可调节开关频率范围,带外同步
  • 降低功耗
    • 22µA静态电流
    • 峰值效率高于90%
    • PFM支持增强轻载效率
    • 1.2µA关断电流
  • 在恶劣环境下工作可靠
    • 峰值限流保护
    • 内置输出电压监测低电平有效RESET
    • 可编程EN/UVLO门限
    • 单调启动进入预偏置负载状态
    • 过热保护
    • 高工业级-40℃至+125℃工作范围 / -40℃至+150℃结温范围

应用

  • 电池供电设备
  • 替代高压LDO
  • HVAC与楼宇控制
  • 工业传感器和过程控制
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
MAX17531 4420.837Resistor0.05InternalYesYes12200EE-Sim
TDFN/10
UMAX/10
$0.97 @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。


MAX17531ATBEVKIT: MAX17531评估板
MAX17531AUBEVKIT: 评估:MAX17531 (µMAX) 5V输出电压

技术资料

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: MAX17531.pdf 
无铅封装的锡(Sn)晶须报告

工具和模型

  • EE-Sim: MAX17531 设计和仿真
  • MAX17531 SIMPLIS Schematic
  • CAD Symbols and Footprints

  • MAX17531ATB+
  • MAX17531ATB+T
  • MAX17531AUB+
  • MAX17531AUB+T
  • 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 >
    环境管理体系 >

     
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