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MAX8862L, MAX8862R, MAX8862T

低成本、低压差、双线性稳压器

双路高、低功率线性稳压器,封装在单一芯片,节省空间

产品详情

主要特征

简化框图

Technical Docs

数据资料 低成本、低压差、双线性稳压器 Aug 01, 1996

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主要特征

  • Low Cost
  • Guaranteed 250mA and 100mA Output Currents, with Current Limiting
  • Dual Mode Operation:
    • Fixed or Adjustable Output from +2V to +11V
  • +2.5V to +11.5V Input Range
  • 160mV Dropout Voltage at 200mA Output Current
  • Low Supply Current-Even in Dropout
    • 200µA Operating
    • <1µA Shutdown
  • Power-Good Indicator
  • Reverse-Battery Protection
  • Thermal Overload Protection

应用/用途

  • 蜂窝电话
  • 无绳电话
  • 电子规划器
  • 手持式仪表(PDA、掌上电脑)
  • 调制解调器
  • PCMCIA卡
  • PCS电话

描述

The MAX8862 low-cost, low-dropout, dual linear voltage regulator is ideal for battery-powered and portable applications. The regulators have independent supply inputs and provide 250mA and 100mA, respectively, with a full-load dropout voltage of 160mV. Both regulators use P-channel MOSFET pass transistors and maintain low quiescent current independent of load current. In dropout, the MOSFET does not suffer from excessive base currents, as do saturated PNP transistors.

The MAX8862 output voltage is preset to 4.95V (L), 3.175V (T), or 2.85V (R). This device employs Dual Mode™ operation, allowing user-adjustable outputs from +2V to +11V with external resistors. The input supply-voltage range is 2.5V to 11.5V. Other features include independent shutdown, power-good indicator, short-circuit and reverse-battery protection, and thermal shutdown.

The MAX8862's regulators are ideal power supplies for the radio and the microcontroller (µC) used in digital, cordless, and PCS phones. The main regulator is optimized for superior transient and dynamic response, while the secondary regulator exhibits low-output, wideband noise.

The MAX8862 comes in a 16-pin SO package with a lead frame that uses multiple GND pins as a heat sink for additional thermal dissipation.

简化框图

MAX8862、MAX8862L、MAX8862R、MAX8862T:典型工作电路 MAX8862、MAX8862L、MAX8862R、MAX8862T:典型工作电路 Zoom icon

Technical Docs

数据资料 低成本、低压差、双线性稳压器 Aug 01, 1996

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心