MCP1790中文资料High-Voltage, LDO, 70 mA数据手册Microchip规格书

描述 Description

The MCP1790 is a 70 mA, ceramic output cap stable, high voltage, Low Dropout Regulator (LDO). The MCP1790 is capable of handling continuous input voltage of up to 30V and is load dump protect for up to 48V, making it especially suitable for automotive as well as 12V/24V industrial applications. The MCP1790 comes in thermally enhanced DDPAK-3 package as well as space-efficient SOT223-3 package. For shutdown and powergood options, see MCP1791

特性 Features

Wide steady state supply voltage: 6.0V - 30.0V
48V (43.5V ±10%) load dump protected for 180ms with a 30 second repetition rate
70 mA output current
Low quiescent current: 70 µA typical
Fixed output voltages: 3.0V, 3.3V, 5.0V
Extended Junction Temperature Range: -40 to +125°C
Output Voltage Tolerances of ±2.5% over the temperature range
Short Circuit Current Foldback
High PSRR, -90 dB@100 Hz (typical)

简介

MCP1790属于集成电路（IC）的线性+开关稳压器。由制造生产的MCP1790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。