MIC37110中文资料High-Performance,Low-Noise,1A LDOs数据手册Microchip规格书

描述 Description

The MIC37110/MIC37112 and MIC37120/MIC37122 are high-performance, low-noise, low dropout regulators. Each of these LDOs is capable of sourcing 1A output current, offers high power supply rejection, and low output noise. These general purpose LDOs are most suitable for consumer applications such as multimedia devices, set-top boxes, Blu-ray players, handheld devices, and gaming consoles.The MIC37112 and MIC37122 feature adjustable output voltages while the MIC37110 and MIC37120 come in fixed 1.8V output voltage options. All devices feature 2% initial output voltage accuracy, typical dropout of 230mV at 1A, and low ground current.This family of low-noise regulators is available in 2mm x 2mm Thin MLF®, SOIC-8, and SOT-223 packages and they all have an operating junction temperature range of −40°C to +125°C.

特性 Features

Input voltage range: 2.375V to 5.5V
Output voltage adjustable down to 1.0V (MIC37112/MIC37122)
Stable with small, 2.2µF ceramic output capacitor
230mV typical dropout at 1A
1A minimum guaranteed output current
±2.0% initial accuracy
Low ground current
High PSRR: >60dB, up to 1kHz
Output auto-discharge circuit (MIC37120/MIC37122)
Thermal shutdown and current limit protection

简介

MIC37110属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC37110稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。