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MAX8875
150mA、低压差线性稳压器,带有电源就绪指示输出

SOT23低压差稳压器,有效延长电池寿命


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概述
完整的数据资料 (PDF, 272kB)
英文 Download this datasheet in PDF format下载

The MAX8875 low-dropout linear regulator operates from a +2.5V to +6.5V input range and delivers up to 150mA. A P-channel MOSFET pass transistor allows its 85µA supply current to remain independent of the load, making this device ideal for battery-operated portable equipment such as PCS phones, cellular phones, cordless phones, and modems.

The MAX8875 features a power-OK output that indicates when the output is out of regulation. The device is available in several preset output voltage versions: 5.0V, 3.3V, 3.0V, 2.7V, or 2.5V. Other features include 1µA (max) shutdown current, short-circuit protection, thermal shutdown protection, and reverse-battery protection. The device comes in a miniature 5-pin SOT23 package.

The MAX8875 is optimized for use with a 1µF ceramic output capacitor. For a pin-compatible, functionally equivalent device for use with a higher ESR output capacitor, see the MAX8885 data sheet.

关键特性   应用/使用
  • Power-OK Output
  • Small Output Capacitor (1µF ceramic)
  • Preset Output Voltages (±1% accuracy)
  • Guaranteed 150mA Output Current
  • 85µA No-Load Supply Current
  • Low 110mV Dropout at 100mA Load (165mV at 150mA load)
  • Thermal-Overload and Short-Circuit Protection
  • Reverse-Battery Protection
  • 60dB PSRR at 100Hz
  • 1µA max Shutdown Current

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

    Key Specifications:   Linear Regulators
    Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (V) Preset VOUT (V) Typ. VDROPOUT@ Rated ILOAD (V) Rated ILOAD (mA) Max. ICC (µA) Low Battery/ Power Fail Output POK/ Reset Output POK/ Reset Output Type Nominal POK/Reset Threshold (V) Watchdog Reverse Battery Protection Package Operating Temp. Range (°C) Price**
    MAX8875  1 2.5 6.5 1.5 to 5.0 0.16 150 180 Yes POK Open Drain Active Low Vout-10.5% No Yes SOT-23/5 -40 to +85 $0.77 @ 1k
    See All Linear Regulators (141)
    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 prices and delivery, please see the price and availability page or contact an authorized distributor.

    图表
    MAX8875:典型工作电路
    典型工作电路

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    参考文献: 19-1556; Rev. 1; 2001-01-31
    本页最后一次更新: 2007-06-05



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