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低压差、低IQ、1A线性稳压器

压差仅为210mV的1A LDO,封装耗散功率达1.7W,尺寸比SOT23封装缩小30%

产品详情

主要特征

Parametric specs for Linear Regulators
VIN (V) (min) 2.5
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 1.25
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 1000
Preset VOUT (V) 2.5
3.3
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.21
ICC (µA) (max) 200
Output Voltage Noise (µV RMS) (typ) 115
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-6%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
1.68
缩小

简化框图

Technical Docs

数据资料 低压差、低IQ、1A线性稳压器 Feb 09, 2012

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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) 1.25
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 1000
Preset VOUT (V) 2.5
3.3
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.21
ICC (µA) (max) 200
Output Voltage Noise (µV RMS) (typ) 115
Ref. Bypass No
Low Batt./ Pwr. Fail Out No
POK/Reset Thresh. (V) (nom) Vout-6%
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +85
Package/Pins TSSOP/16
Budgetary
Price (See Notes)
1.68

主要特征

  • Guaranteed 1A Output Current
  • Low 210mV Dropout at 1A
  • Up to ±1% Output Voltage Accuracy
    • Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V or 5.0V
    • Adjustable from 1.25V to 5.0V
  • Reset Output (4ms Delay)
  • Low 125µA Ground Current
  • 0.1µA Shutdown
  • Low 115µVRMS Output Noise
  • Thermal-Overload Protection
  • Output Current Limit
  • Tiny TSSOP Power Package (1.5W) 30% Smaller than SOT223 (only 1.1mm high)

应用/用途

  • 坞站
  • 笔记本电脑
  • PDA
  • USB集线器
  • 无线基站

描述

The MAX1793 low-dropout linear regulator (LDO) operates from +2.5V to +5.5V and delivers a guaranteed 1A load current with a low 210mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see the Ordering Information in the full data sheet) or can be adjusted from 1.25V to 5.0V with an external resistor-divider.

An internal pMOS pass transistor allows a low 125µA supply current, making the MAX1793 ideal for battery-operated portable equipment. Other features include a built-in reset output, low-power shutdown, and short-circuit and thermal-overload protection. The MAX1793 is available in a 1.5W, 16-pin power TSSOP package, which is 30% smaller than a SOT223 package and only 1.1mm high.

简化框图

MAX1793:典型工作电路 MAX1793:典型工作电路 Zoom icon

Technical Docs

数据资料 低压差、低IQ、1A线性稳压器 Feb 09, 2012

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

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