MIC47150中文资料1.5A Low Voltage, ADJ. High Bandwidth LDO Regulator with Dual Input Supplies数据手册Microchip规格书

描述 Description

The MIC47150 is a high-bandwidth, low-dropout, 1.5A voltage regulator that is ideal for powering core voltages of low-power microprocessors. The MIC47150 implements a dual supply configuration allowing for very low output impedance and very fast transient response. The MIC47150 requires a bias input supply between 3V and 6.5V for proper operation.  The main input supply rail operates from 1.4V to 6.5V that allows for adjustable output voltages down to 0.9V. The MIC47150 requires a minimum of 1µF output capacitance for stability, and optimal operation is achieved with small ceramic capacitors. The MIC47150 is available in a 5-pin power D-Pak package (TO-252) with an operating temperature range of -40°C to +125°C.

特性 Features

•Input voltage range:
• VIN: 1.4V to 6.5V
• VBIAS: 3.0V to 6.5V
•Stable with 1µF ceramic capacitor
• ±1% initial tolerance
•Maximum dropout voltage (VIN-VOUT) of 500mV over temperature
•Adjustable output voltage down to 0.9V
• Ultra fast transient response (up to 10MHz bandwidth)
• Excellent line and load regulation specifications
• Power D-Pak package (TO-252)
• Thermal shutdown and current limit protection
• Junction temperature range: -40°C to +125°C

简介

MIC47150属于集成电路（IC）的线性+开关稳压器。由制造生产的MIC47150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。