MAX5026

500kHz、36V输出、SOT23封装、PWM升压型DC-DC转换器


点击查看特定型号的库存状况。

说明

MAX5025–MAX5028恒定频率、脉宽调制(PWM)、低噪声boost转换器适用于需要局部高电压的低电压系统。这几款器件可以产生低噪声的高电压,适用于电视调谐器、机顶盒以及PCI电缆调制解调器中变容二极管的偏置。MAX5025–MAX5028工作于最低3V电压,开关频率高达500kHz。

恒定频率、电流模式的PWM结构提供低噪声输出,易于进行滤波。使用40V横向DMOS器件作为内部功率开关,这些器件是理想的36V boost转换器。输出可调器件MAX5025/MAX5026需要使用外部反馈电阻设置输出电压。MAX5027/MAX5028则提供30V固定输出电压。这些器件都采用小尺寸、6引脚的SOT23封装。
MAX5025、MAX5026、MAX5027、MAX5028:典型工作电路 MAX5025、MAX5026、MAX5027、MAX5028:典型工作电路 放大+

关键特性

  • 输入电压范围:
    • 3V至11V (MAX5026/MAX5028)
    • 4.5V至11V (MAX5025/MAX5027)
  • 宽输出电压范围:VCC至36V
  • 输出功率:120mW(最大)
  • 利用外部反馈电阻用户可调输出电压(MAX5025/MAX5026)
  • 固定30V输出电压(MAX5027/MAX5028)
  • 内置1.3Ω (典型)、40V开关
  • 恒定的PWM频率便于低噪声应用中的滤波
  • 500kHz (典型)开关频率
  • 1µA (最大)关断电流
  • 小尺寸6引脚SOT23封装

应用

  • 雪崩光电二极管偏置
  • LCD电源
  • 低噪声变容二极管偏置
  • PCI线缆调制解调器
  • 机顶盒调谐器电源
  • TV调谐器电源
  • 线缆语音

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.

MAX5026EVKIT: MAX5025、MAX5026、MAX5027、MAX5028评估板
产品可靠性报告: MAX5026.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。

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