描述 Description

The MIC37100, MIC37101, and MIC37102 are 1A low dropout, linear voltage regulators that provide low-voltage, high-current output from an extremely small package. Utilizing proprietary Super βeta PNP? pass element, the MIC37100/01/02 offers extremely low dropout (typically 280mV at 1A) and low ground current (typically 11mA at 1A).The MIC37100 is a fixed output regulator offered in the SOT-223 package. The MIC37101 and MIC37102 are fixed and adjustable regulators, respectively, in a thermally enhanced power 8-pin SOIC (small outline package) and the SOT-223 package. The MIC37102 is also available in the S-PAK power package for applications that require higher power dissipation or higher operating ambient temperatures.The MIC37100/01/02 is ideal for PC add-in cards that need to convert from standard 5V to 3.3V, 3.3V to 2.5V, or 2.5V to 1.8V or lower. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the MIC37100/01/02 to provide 2.5V from a supply as low as 3V and 1.8V from a supply as low as 2.3V.The MIC37100/01/02 is fully protected with overcurrent limiting and thermal shutdown. Fixed output voltages of 1.5V, 1.65V, 1.8V, 2.5V, and 3.3V are available on MIC37100/01 with adjustable output voltages to 1.24V on MIC37102.

特性 Features

? Fixed and adjustable output voltages to 1.24V
? μCap Regulator, 10μF ceramic output capacitor stable
? Ideal for 3.0V to 2.5V conversion
? Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion
? 1A minimum guaranteed output current
? 1% initial accuracy
? Low ground current
? Current limiting and thermal shutdown
? Reverse leakage protection
? Fast transient response
? Low-profile SOT-223 package
? Power SO-8 package
? S-PAK package (MIC37102 only)

簡介

MIC37101屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由制造生產(chǎn)的MIC37101穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、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，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。