MCP1701AT-3302I/CB屬于集成電路（IC）的線性+開(kāi)關(guān)穩(wěn)壓器。由微芯科技股份有限公司制造生產(chǎn)的MCP1701AT-3302I/CB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(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。

General Description

The MCP1701A is a family of CMOS low-dropout, positive voltage regulators that can deliver up to 250 mA of current while consuming only 2.0 μA of quiescent current (typ.). The input operating range is specified up to 10V, making it ideal for lithium-ion (one or two cells), 9V alkaline and other two and three primary cell battery-powered applications.

The MCP1701A is capable of delivering 250 mA with an input-to-output voltage differential (dropout voltage) of 650 mV. The low-dropout voltage extends the battery operating lifetime. It also permits high currents in small packages when operated with minimum VIN – VOUT differentials. The MCP1701A offers improved startup and transient response.

The MCP1701A has a tight tolerance output voltage regulation of ±0.5 (typ.) and very good line regulation at ±0.2. The LDO output is stable when using only 1 μF of output capacitance of either tantalum or aluminum-electrolytic style capacitors. The MCP1701A LDO also incorporates short circuit protection to ensure maximum reliability.

Package options include the 3-pin SOT-23A, 3-pin SOT-89 and 3-Pin TO-92.

特性 Features

? 2.0 μA Typical Quiescent Current

? Input Operating Voltage Range up to 10.0V

? Low-Dropout Voltage (LDO):

- 120 mV (typical) @ 100 mA

- 380 mV (typical) @ 200 mA

? High Output Current: 250 mA (VOUT = 5.0V)

? High-Accuracy Output Voltage: ±2 (max)

? Low Temperature Drift: ±100 ppm/°C (typical)

? Excellent Line Regulation: 0.2/V (typical)

? Package Options: 3-Pin SOT-23A, 3-Pin SOT-89,

and 3-Pin TO-92

? Short Circuit Protection

? Standard Output Voltage Options:

- 1.8V, 2.5V, 3.0V, 3.3V, 5.0V

Applications

? Battery-Powered Devices

? Battery-Powered Alarm Circuits

? Smoke Detectors

? CO2 Detectors

? Smart Battery Packs

? PDAs

? Low-Quiescent Current Voltage Reference

? Cameras and Portable Video Equipment

? Pagers and Cellular Phones

? Solar-Powered Instruments

? Consumer Products

? Microcontroller Power