MAX17632

4.5V至36V、2A、高效、同步降压型DC-DC转换器

宽范围输入电压、2A、内部FET同步Buck转换器,理想用于工业应用


点击查看特定型号的库存状况。

说明

MAX17632家族器件(MAX17632A、MAX17632B和MAX17632C)为高效、高压、同步降压型DC-DC转换器,带集成MOSFET,工作在4.5V至36V输入电压范围。器件可提供高达2A电流。MAX17632A和MAX17632B器件分别为3.3V和5V固定输出器件;MAX17632C为可调节输出电压(0.9V至90% VIN)器件。内部补偿覆盖整个输出电压范围,无需外部补偿元件。

MAX17632采用峰值电流模式控制架构。器件可在强制脉宽调制(PWM)、脉冲频率调制(PFM)或非连续导通模式(DCM)控制方法下工作,支持在满载和轻载条件下实现高效率。MAX17632具有较低最小导通时间,允许高开关频率和较小方案尺寸。

MAX17632A/MAX17632B/MAX17632C在-40°C至+125°C下的反馈电压调节精度为±1.2%。器件采用16引脚(3mm x 3mm) TQFN封装。提供仿真模式。

MAX17632: Block Diagram MAX17632: Block Diagram 放大+

关键特性

  • 减少外部元件,降低总体成本
    • 无肖特基同步操作
    • 内部补偿元件
    • 全陶瓷电容设计,布局紧凑
  • 减少DC-DC稳压器库存清单
    • 4.5V至36V较宽输入电压
    • 0.9V至90% VIN可调节输出电压范围
    • 整个温度范围内可提供高达2A电流
    • 400kHz至2.2MHz可调节频率,带外部时钟同步
    • 采用16引脚、3mm x 3mm TQFN封装
  • 降低功耗
      v峰值效率为94%
    • PFM和DCM模式,轻载时保持高效
    • 辅助自举电源(EXTVCC),提高效率
    • 2.8μA关断电流
  • 在恶劣工业环境下工作可靠
    • 打嗝式过载保护
    • 可调节和单调启动,带预偏置输出电压
    • 内置输出电压监测,带有RESET引脚
    • 可编程EN/UVLO门限
    • 过热保护
    • 工业级高温-40°C至+125°C工作温度范围/-40°C至+150°C结温范围

应用

  • 基站电源
  • 配电稳压器
  • 通用负载点电源
  • 高压单板系统
  • 工业控制电源
  • 壁式变压器稳压
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17632 4.5360.932.4
3.3
5
Preset
Resistor
2InternalYesYes1
400
2200
EE-Sim
TQFN-CU/16
$1.57 @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。


MAX17632C5EVKIT: MAX176325V输出电压评估板
MAX17632AEVKIT: MAX17632 3.3V输出电压评估板
MAX17632BEVKIT: MAX17632 5V输出电压评估板
MAX17632C5EVKITE: Evaluation Kit for the MAX17632 5V Output-Voltage Application

质量和环境数据

申请可靠性报告: MAX17632 
无铅封装的锡(Sn)晶须报告

工具和模型

  • EE-Sim: MAX17632 设计和仿真
  • CAD Symbols and Footprints

  • MAX17632AATE+
  • MAX17632AATE+T
  • MAX17632BATE+
  • MAX17632BATE+T
  • MAX17632CATE+
  • MAX17632CATE+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 >

     
    Status:
    Package:
    Temperature:

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