Description:

The MCP1703A is an improved version of the MCP1703 low dropout (LDO) voltage regulator that can deliver up to 250 mA of current while consuming only 2.0 μA of quiescent current (typical). The input operating range is specified from 2.7V to 16.0V, making it an ideal choice for two to six primary cell battery powered applications, 9V alkaline and one or two cell Li-Ion-powered applications.

Features:

? Reduced Ground Current During Dropout

? Faster Startup Time

? 2.0 μA Typical Quiescent Current

? Input Operating Voltage Range: 2.7V to16.0V

? 250 mA Output Current for Output Voltages ≥2.5V

? 200 mA Output Current for Output Voltages < 2.5V

? Low Dropout Voltage, 625 mV Typical @ 250 mA for VR=2.8V

? 0.4 Typical Output Voltage Tolerance

? Standard Output Voltage Options:

- 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V

? Output Voltage Range: 1.2V to 5.5V in 0.1V Increments (50 mV increments available upon request)

? Stable with 1.0 μF to 22 μF Ceramic Output Capacitance

? Short-Circuit Protection

? Overtemperature Protection

Applications:

? Battery-Powered Devices

? Battery-Powered Alarm Circuits

? Smoke Detectors

? CO2 Detectors

? Pagers and Cellular Phones

? Smart Battery Packs

? Low Quiescent Current Voltage Reference

? PDAs

? Digital Cameras

? Microcontroller Power

? Solar-Powered Instruments

? Consumer Products

MCP1703A屬于集成電路（IC） > 線性 + 開關(guān)穩(wěn)壓器。微芯科技股份有限公司制造生產(chǎn)的MCP1703A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(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(yīng)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(yīng)用。