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MAX8866R, MAX8866S, MAX8866T

双路、低压差、100mA线性稳压器

双路、100mA LDO,仅占用0.024平方英寸的面积,高度为1.11mm

产品详情

主要特征

应用/用途

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 1.5
Adj. VOUT (V) (max) 5.5
Rated ILOAD (mA) 100
Preset VOUT (V) 2.8
2.84
3.15
# Regulators 2
VDROPOUT @Rated ILOAD (V) (typ) 0.11
ICC (µA) (max) 270
Output Voltage Noise (µV RMS) (typ) 220
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
1.35
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参量

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 1.5
Adj. VOUT (V) (max) 5.5
Rated ILOAD (mA) 100
Preset VOUT (V) 2.8
2.84
3.15
# Regulators 2
VDROPOUT @Rated ILOAD (V) (typ) 0.11
ICC (µA) (max) 270
Output Voltage Noise (µV RMS) (typ) 220
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +85
Package/Pins UMAX/8
Budgetary
Price (See Notes)
1.35

主要特征

  • Low Cost
  • Low, 55mV Dropout Voltage @ 50mA IOUT
  • Low, 105µA No-Load Supply Current
  • Low, 145µA Operating Supply Current (even in dropout)
  • Low, 350µVRMS Output Noise
  • Independent, Low-Current Shutdown Control
  • Thermal Overload Protection
  • Output Current Limit
  • Reverse Battery Protection
  • Dual Mode Operation: Fixed or Adjustable (1.25V to 5.5V) Outputs

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 MAX8865 and MAX8866 dual, low-dropout linear regulators operate from a +2.5V to +5.5V input range and deliver up to 100mA. At 200mA total load, the PMOS pass transistors keep the supply current at 145µA, making these devices ideal for battery-operated portable equipment such as cellular phones, cordless phones, and modems.

The devices feature Dual Mode™ operation: their output voltages are preset (at 3.15V for the "T" versions, 2.84V for the "S" versions, or 2.80V for the "R" versions) or can be adjusted with external resistor dividers. Other features include independent low-power shutdown, short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX8866 also includes an auto-discharge function, which actively discharges the selected output voltage to ground when the device is placed in shutdown mode. Both devices come in a miniature 8-pin µMAX® package.

简化框图

MAX8865R、MAX8865S、MAX8865T、MAX8866R、MAX8866S、MAX8866T:典型工作电路 MAX8865R、MAX8865S、MAX8865T、MAX8866R、MAX8866S、MAX8866T: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