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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

产品详情

主要特征

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 6.5
Rated ILOAD (mA) 150
Preset VOUT (V) 3
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.16
ICC (µA) (max) 180
Output Voltage Noise (µV RMS) (typ) 170
Ref. Bypass No
Low Batt./ Pwr. Fail Out Yes
POK/Reset Thresh. (V) (nom) Vout-10.5%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
Budgetary
Price (See Notes)
0.86
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参量

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 6.5
Rated ILOAD (mA) 150
Preset VOUT (V) 3
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.16
ICC (µA) (max) 180
Output Voltage Noise (µV RMS) (typ) 170
Ref. Bypass No
Low Batt./ Pwr. Fail Out Yes
POK/Reset Thresh. (V) (nom) Vout-10.5%
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SOT23/5
Budgetary
Price (See Notes)
0.86

主要特征

  • 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/用途

  • 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

描述

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.

简化框图

MAX8875:典型工作电路 MAX8875:典型工作电路 Zoom icon

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在Maxim的知识库中搜索技术问题的答案

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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