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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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状态
状况:生产中。

概述
完整的数据资料 (PDF, 272kB)
英文 下载数据资料(PDF)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, 2.5V, or 1.5V. 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
 

Key Specifications:  Linear Regulators
Part Number Regulators VIN
(V)
VIN
(V)
Preset VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
ICC
(µA)
Low Batt./ Pwr. Fail Out POK/Reset Thresh.
(V)
Watchdog Reverse Batt. Protect. Oper. Temp.
(°C)
Package/Pins Smallest Available Pckg.
(mm2)
Price
min max typ max nom max w/pins See Notes
MAX8875  1 2.5 6.5 1.5 to 5.0 0.16 150 180 Yes Vout-10.5% No Yes -40 to +85
SOT/5
9 $0.77 @1k
查看所有Linear Regulators (152)

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: 2009-09-18


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