MIC25400中文资料2A Dual Output PWM Synchronous Buck Regulator IC数据手册Microchip规格书

描述 Description

The MIC25400 is a synchronous PWM dual output step down converter with internal 2A high-side switches. The MIC25400 has an integrated low-side gate driver for synchronous step-down conversion by connecting an external N-channel MOSFET to achieve high efficiencies in low duty-cycle applications. The ICs switching frequency is 1MHz. A patented control scheme allows the use of a wide range of output capacitance from small ceramic capacitors to large electrolytic types with only one compensation component. A 2% output voltage tolerance over the temperature range allows the maximum level of system performance. The MIC25400 power good signal allows full control for sequencing the output voltages with minimum external components. An adjustable current limit allows the use of smaller inductors in lower current applications. The MIC25400 is available in the ePAD 24-pin 4mm x 4mm MLF® package, and has an operating junction temperature range of -40°C to +125°C.

简介

MIC25400属于集成电路（IC）的ACDC转换器离线开关。由制造生产的MIC25400AC DC 转换器，离线开关该系列是元器件级控制产品，用于构建将交流市电转换为直流电（通常电压大幅降低）的设备。集成和未集成系统主要开关元件的器件均包括在内。由于高输入输出电压比，以及此类系统中通常需要隔离，这些器件通常与外部变压器配合使用。尽管通常使用定制变压器来实现此用途，但也有许多专门用于此用途的库存产品，请参见“开关转换器，SMPS 变压器”标题。