TPS70912DBVR集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TPS70912DBVR属于集成电路（IC）的线性+开关稳压器。由德州仪器制造生产的TPS70912DBVR稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

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.