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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说明

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.
MAX8875:典型工作电路 MAX8875:典型工作电路 放大+

关键特性

  • 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

应用

  • 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
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Output Voltage Noise
(µV RMS)
Ref. BypassLow Batt./ Pwr. Fail OutPOK/Reset Thresh.
(V)
WatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxtypmaxtypnomSee Notes
MAX8875 12.56.5
1.5
2.5
2.7
3
3.3
5
0.16150150180170NoYesVout-10.5%NoYes-40 to +85
SOT23/5
$0.81 @1k
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Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

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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