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MAX1776：24V、600mA内置开关、100%占空比、降压型转换器

The MAX1776 high-efficiency step-down converter provides an adjustable output voltage from 1.25V to VIN from supply voltages as high as 24V. An internal current-limited 0.4Ω MOSFET delivers load currents up to 600mA. Operation to 100% duty cycle minimizes dropout voltage (240mV at 600mA). The MAX1776 has a low 15µA quiescent current to improve light-load efficiency and conserve battery life. The device draws only 3µA while in shutdown. High switching frequencies (up to 200kHz) allow the use of tiny surface-mount inductors and output capacitors. The MAX1776 is available in an 8-pin µMAX package, which uses half the space of an 8-pin SO. For increased output drive capability, use the MAX1626/ MAX1627 step-down controllers, which drive an external P-channel MOSFET to deliver up to 20W.

关键特性 Fixed 5V or Adjustable Output 4.5V to 24V Input Voltage Range Up to 600mA Output Current Internal 0.4Ω P-Channel MOSFET Efficiency Over 95% 15µA Quiescent Supply Current 3µA Shutdown Current 100% Maximum Duty Cycle for Low Dropout Current-Limited Architecture Thermal Shutdown Small 8-µMAX Package

MAX1776：典型工作电路 应用 分布式供电系统 手持式设备 不间断电源 笔记本电脑

数据手册DataSheet

关键参数

开发工具

• MAX1776EVKIT

技术资料

• Power-Supply Solutions for Altera FPGAs
• Power-Supply Solutions for Xilinx FPGAs
• Using Digital Potentiometers in Adjustable Step-Down DC-DC Converter Designs

质量和环境数据

• MAX1776.pdf

相关产品

• MAX1837：24V内置开关、100%占空比、降压型转换器
• MAX1836：24V内置开关、100%占空比、降压型转换器

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