描述 Description

The MCP1792/3 family devices are high voltage, low dropout (LDO) regulators, capable of generating 100 mA output current. The input voltage range of 4.5V to 55V makes it ideal in 12V to 48V power rails and in high voltage battery packs.A low UVLO at shutdown of 2.4V makes it adequate for cold cranking conditions in automotive applications. The MCP1792/3 comes in 2 standard fixed output-voltage versions: 3.3V and 5.0V. The regulator output isstable with 2.2 μF ceramic capacitors. The device is protected from short circuit events by the current foldback function and from overheating by means of thermal shutdown protection.The MCP1792 is the 3-lead version of the MCP1792/3 device family and the MCP1793 is the 5-lead version, which offers shutdown functionality (SHDN pin). While in shutdown, the quiescent current drops to 2 μA, allowing for lower, overall, power consumption. The?device itself has a ground current of 100?μA, while delivering?a maximum output current of 100 mA.

特性 Features

AEC-Q100 Qualified and PPAP Capable with Grade 0
Wide Input Voltage: 4.5V to 55V
Up to 70V transient
Under Voltage Lock Out (UVLO): 2.4V
Extended Working Temperature Rang: -40C to 150C
Low Quiescent Supply Current: 25 uA typical
Low Shutdown Quiescent Supply Current: 2 uA typical
Output Current Capability: 100 mA typical
Stable with Ceramic Output Capacitor: 2.2 uF
High PSRR: 80 dB @ 100 Hz tyipcal

簡(jiǎn)介

MCP1792屬于集成電路（IC）的線(xiàn)性+開(kāi)關(guān)穩(wěn)壓器。由制造生產(chǎn)的MCP1792穩(wěn)壓器 - 線(xiàn)性線(xiàn)性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無(wú)論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對(duì)于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開(kāi)關(guān)模式的穩(wěn)壓器，但它們通常更適合對(duì)噪聲高度敏感的應(yīng)用。