LP2983IM5-1.0/NOPB屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由美國德州儀器公司制造生產(chǎn)的LP2983IM5-1.0/NOPB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(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。

1 Features

1? Operating Input Supply Voltage: 2.2 V to 16 V

? Output Current: 150 mA

? Low ZOUT: 0.3 Ω Typical (10 Hz to 1 MHz)

? Stable with Low-ESR Output Capacitor

? Low Ground Pin Current at All Loads

? Output Voltage Accuracy 1% (A Grade)

? High Peak Current Capability

? Wide Supply Voltage Range (16 V Maximum)

? Overtemperature and Overcurrent Protection

? ?40°C to +125°C Junction Temperature Range

? Requires Minimum External Components

2 Applications

? Cellular Phones

? Palmtop/Laptop Computers

? Personal Digital Assistants (PDA)

? Camcorders, Personal Stereos, Cameras

3 Description

The LP2983 is a 150-mA, fixed-output voltage

regulator designed to provide tight voltage regulation

in applications with output voltages ≤ 1.2 V.

Using an optimized vertically integrated PNP (VIP)

process, the LP2983 delivers unequaled performance

in all critical specifications:

? Ground pin current: Typically 825 μA at a 150-mA

load, and 75 μA at a 1-mA load.

? Enhanced stability: The LP2983 is stable with

output capacitor ESR down to zero, which allows

the use of ceramic capacitors on the output.

? Precision output: 1% tolerance output voltages

available (A grade).

? Smallest possible size: SOT-23 package uses

absolute minimum board space.