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1A、MicroCap、低压差、线性稳压器

紧凑的1A、低压差线性稳压器,仅需要1µF输出电容!

产品详情

主要特征

应用/用途

Parametric specs for Linear Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.8
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 1000
Preset VOUT (V) 1
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.2
ICC (µA) (max) 2000
Output Voltage Noise (µV RMS) (typ) 150
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-8%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
3
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参量

Parametric specs for Linear Regulators
VIN (V) (min) 2.7
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.8
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 1000
Preset VOUT (V) 1
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.2
ICC (µA) (max) 2000
Output Voltage Noise (µV RMS) (typ) 150
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-8%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
3

主要特征

  • Guaranteed 1A Output Current
  • Stable with COUT = 1µF
  • Low 200mV Dropout at 1A
  • ±1% Output Voltage Accuracy
    • Preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V and Adjustable from +0.8V to +5.0V
  • 54dB PSRR at 100kHz
  • Adjustable Soft-Start
  • 3ms Reset Output
  • Foldback Output Current Limit
  • Thermal Overload Protection
  • High-Power 16-Pin TSSOP Package (1.5W)
    • 30% Smaller than SOT223 (Only 1.1mm High)

应用/用途

  • 移动电话基站
  • 网络设备
  • 笔记本电脑
  • 个人计算机
  • 电信硬件

描述

The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The high-accuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider.

The MAX8869 uses Microcap® technology and requires only a small 1µF output capacitor for guaranteed stability. An internal PMOS pass transistor allows low 500µA supply current, making this regulator useful for networking and telecom hardware as well as battery-operated equipment. Other features include soft-start, low-power shutdown, short-circuit protection, and thermal shutdown protection.

The MAX8869 is available in a 1.5W, 16-pin TSSOP package, which is 30% smaller than a SOT223 and only 1.1mm high.

简化框图

MAX8869:典型工作电路 MAX8869:典型工作电路 Zoom icon

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