TPS70912DRVR集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

TPS70912DRVR屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由德州儀器制造生產(chǎn)的TPS70912DRVR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。

1 Features

? Ultra-low IQ: 1 μA

? Reverse current protection

? Low ISHUTDOWN: 150 nA

? Input voltage range: 2.7 V to 30 V

? Supports 200-mA peak output

? 2% accuracy over temperature

? Available in fixed-output voltages:

1.2 V to 6.5 V

? Thermal shutdown and overcurrent protection

? Packages: SOT-23-5, WSON-6

2 Applications

? Smoke and heat detectors

? Thermostats

? Motion detectors (PIR, uWave, and so forth)

? Cordless power tools

? Appliance battery packs

? Electricity meters

? Water meters

3 Description

The TPS709 series of linear regulators are ultralow,

quiescent current devices designed for powersensitive

applications. A precision band-gap and error

amplifier provides 2% accuracy over temperature.

Quiescent current of only 1 μA makes these

devices ideal solutions for battery-powered, alwayson

systems that require very little idle-state power

dissipation. These devices have thermal-shutdown,

current-limit, and reverse-current protections for

added safety.

Shutdown mode is enabled by pulling the EN pin low.

The shutdown current in this mode goes down to

150 nA, typical.

The TPS709 series is available in WSON-6 and

SOT-23-5 packages.