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MAX1951

MAX1951

1MHz、全陶瓷、2.6V至5.5V输入、2A PWM降压型DC-DC稳压器

1MHz、全陶瓷、2.6V至5.5V输入、2A PWM降压型DC-DC调节器，只需要10µF陶瓷电容

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概述

说明

MAX1951/MAX1952高效率、DC-DC降压开关转换器可以输出高达2A的输出电流。该稳压器能够从2.6V至5.5V的输入电压产生0.8V至VIN的输出电压，尤其适合于那些需要板上后稳压的应用。在整个负载、线路、温度范围内，MAX1951总输出误差小于1%。

MAX1951/MAX1952工作在1MHz的固定工作频率，具有高达94%的效率。较高的工作频率减少了外部元件的尺寸。内部的软启动控制电路降低了浪涌电流。短路和热过载保护提高了设计的可靠性。

MAX1951提供了0.8V至VIN的可调输出，而MAX1952具有1.8V的预置输出电压。两个器件都采用了节省空间的8引脚SO封装。

有关PowerMind™的更多信息。
MAX1951、MAX1952：典型工作电路 MAX1951、MAX1952：典型工作电路 放大+

关键特性

  • 紧凑的0.385in²电路板尺寸
  • 1.5A输出时可选用10µF输入、输出陶瓷电容2µH电感
  • 效率高达94%
  • 在整个负载、电源电压和工作温度范围内可保持1%的输出精度(MAX1951，输出电流1.5A)
  • 确保2A的输出电流
  • 工作于2.6V至5.5V电源电压
  • 0.8V至VIN可调节输出(MAX1951)
  • 预置输出电压1.8V (精度为1.5%) (MAX1952)
  • 内部数字软启动
  • 短路和热过载保护

应用

  • ASIC/DSP/µP/FPGA核及I/O电压
  • 蜂窝基站
  • 网络与电信系统
  • 机顶盒

参数规格


Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

设计资源


MAX1951EVKIT: MAX1951、MAX1952评估板

技术资料

设计指南 5133 Power-Supply Solutions for Altera FPGAs
设计指南 5132 Power-Supply Solutions for Xilinx FPGAs

质量与环境

产品可靠性报告: MAX1951.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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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技术文档

类型 编号 标题
设计指南 5133 Power-Supply Solutions for Altera FPGAs
设计指南 5132 Power-Supply Solutions for Xilinx FPGAs

参考设计

类型 编号 标题
评估板3778MAX1951EVKIT MAX1951、MAX1952评估板