MAX1836 - 24V内置开关、100%占空比、降压型转换器

MAX1836是Maxim美信半导体公司的一款DC-DC开关调节器产品，MAX1836是24V内置开关、100%占空比、降压型转换器，本站介绍了MAX1836的封装应用图解、特点和优点、功能等，并给出了与MAX1836相关的Maxim元器件型号供参考。

MAX1836 - 24V内置开关、100%占空比、降压型转换器 - DC-DC开关调节器 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX1836/MAX1837 high-efficiency step-down converters provide a preset 3.3V or 5V output voltage from supply voltages as high as 24V. Using external feedback resistors, the output voltage may be adjusted from 1.25V to VIN. An internal current-limited switching MOSFET delivers load currents up to 125mA (MAX1836) or 250mA (MAX1837).

The unique current-limited control scheme, operating with duty cycles up to 100%, minimizes the dropout voltage (120mV at 100mA). Additionally, this control scheme reduces supply current under light loads to 12µA. High switching frequencies allow the use of tiny surface-mount inductors and output capacitors.

The MAX1836/MAX1837 step-down converters withinternal switching MOSFETs are available in 6-pinSOT23 and 3mm x 3mm TDFN packages, making themideal for low-cost, low-power, space-sensitive applications.For increased output drive capability, use theMAX1776 step-down converter that uses an internal24V switch to deliver up to 500mA. For even higher currents,use the MAX1626/MAX1627 step-down controllersthat drive an external P-channel MOSFET todeliver up to 20W.

关键特性

以下关键特性由Maxim美信半导体提供：

4.5V to 24V Input Voltage Range

Preset 3.3V or 5V Output

Adjustable Output from 1.25V to VIN

Output Currents Up to 125mA (MAX1836) or 250mA (MAX1837)

Efficiency Over 90%

12µA Quiescent Current

3µA Shutdown Current

100% Maximum Duty Cycle for Low Dropout

Small 6-Pin SOT23 and TDFN Packages

热门应用

4mA至20mA环路供电

9V电池系统

备用电源

分布式供电系统

手持式设备

工业控制电源

笔记本电脑

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