MCP1799中文资料80 mA High Vin Automotive LDO数据手册Microchip规格书

描述 Description

The MCP1799 is a high-voltage, low-dropout (LDO) regulator, capable of generating 80 mA output current. The input voltage range of 4.5V to 45V makes it ideal in 12V to 36V power rails and in high-voltage battery packs.The MCP1799 comes in two standard fixed output voltage versions: 3.3V and 5.0V. The regulator output is stable with 1 μF ceramic capacitors. The device is protected from short circuit events by the current limit function and from over heating by means of thermal shutdown protection.The device itself has a low ground current of 45 μA typical, while delivering maximum output current of 80 mA. Without load the device consumes 25 μA typical.

特性 Features

AEC-Q100 with Grade 0 and PPAP Capable
Wide Input VOtlage Range: 4.5V to 45V
Extended Working Temperature Range: -40C to 150C
Low Quiescent Supply Current: 25 uA typical
Stable with 1 uF Ceramic Output Capacitor
Short Circuit Protection
Thermal Shutdown Protection: +180C typical
High PSRR: 70 dB @ 1kHz typcal
Available in SOT-23 and SOT-223

简介

MCP1799属于集成电路（IC）的线性+开关稳压器。由制造生产的MCP1799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。