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Maxim产品 - MAX604介绍

MAX604 - 5V/3.3V或可调、低压差、低IQ、500mA线性稳压器

MAX604是Maxim美信半导体公司的一款线性调节器产品，MAX604是5V/3.3V或可调、低压差、低IQ、500mA线性稳压器，本站介绍了MAX604的封装应用图解、特点和优点、功能等，并给出了与MAX604相关的Maxim元器件型号供参考。

MAX604 - 5V/3.3V或可调、低压差、低IQ、500mA线性稳压器 - 线性调节器 - 业内尺寸最小的500mA LDO，SO8封装可耗散1.8W的功率 - 美信半导体

产品概述

The MAX603/MAX604 low-dropout, low quiescent current, linear regulators supply 5V, 3.3V, or an adjustable output for currents up to 500mA. They are available in a 1.8W SO package. Typical dropouts are 320mV at 5V and 500mA, or 240mV at 3.3V and 200mA. Quiescent currents are 15µA typ and 35µA max. Shutdown turns off all circuitry and puts the regulator in a 2µA off mode. A unique protection scheme limits reverse currents when the input voltage falls below the output. Other features include foldback current limiting and thermal overload protection.

The output is preset at 3.3V for the MAX604 and 5V for the MAX603. In addition, both devices employ Dual Mode™ operation, allowing user-adjustable outputs from 1.25V to 11V using external resistors. The input voltage supply range is 2.7V to 11.5V.

The MAX603/MAX604 feature a 500mA P-channel MOSFET pass transistor. This transistor allows the devices to draw less than 35µA over temperature, independent of the output current. The supply current remains low because the P-channel MOSFET pass transistor draws no base currents (unlike the PNP transistors of conventional bipolar linear regulators). Also, when the input-to-output voltage differential becomes small, the internal P-channel MOSFET does not suffer from excessive base current losses that occur with saturated PNP transistors.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 500mA Output Current, with Foldback Current Limiting
  • High-Power (1.8W) 8-Pin SO Package
  • Dual Mode™ Operation: Fixed or Adjustable Output from 1.25V to 11V
  • Large Input Range (2.7V to 11.5V)
  • Internal 500mA P-Channel Pass Transistor
  • 15µA Typical Quiescent Current
  • 2µA (Max) Shutdown Mode
  • Thermal Overload Protection
  • Reverse-Current Protection
    • 热门应用
  • 1.25V至11V可调节的稳压器
  • 5V和3.3V稳压器
  • 汽车电子
  • 寻呼机及蜂窝电话
  • 便携式仪表
  • 太阳能供电仪表
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