TPS78228DRVR集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TPS78228DRVR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TPS78228DRVR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

1• Low IQ: 500 nA

• 150-mA, Low-Dropout Regulator

• Input Voltage Range: 2.2 V to 5.5 V

• Low-Dropout at 25°C, 130 mV at 150 mA

• Low-Dropout at 85°C, 175 mV at 150 mA

• 3% Accuracy Over Load, Line, and Temperature

• Stable with a 1.0-μF Ceramic Capacitor

• Thermal Shutdown and Overcurrent Protection

• CMOS Logic Level-Compatible Enable Pin

• Available in DDC (TSOT23-5) or DRV (2-mm x 2-

mm SON-6) Packages

2 Applications

• TI MSP430 Attach Applications

• Wireless Handsets and Smart Phones

• MP3 Players

• Battery-Operated Handheld Products

3 Description

The TPS782 family of low-dropout regulators (LDOs)

offers the benefits of ultra-low power and miniaturized packaging.

This LDO is designed specifically for battery-powered

applications where ultra-low quiescent current is a

critical parameter. The TPS782, with ultra-low IQ (500

nA), is ideal for microprocessors, microcontrollers,

and other battery-powered applications.

The ultra-low power and miniaturized packaging allow

designers to customize power consumption for specific applications.

The TPS782 family is designed to be compatible with

the TI MSP430 and other similar products. The

enable pin (EN) is compatible with standard CMOS logic. This device allows for minimal board space

because of miniaturized packaging and a potentially

small output capacitor. The TPS782 series also

features thermal shutdown and current limit to protect the device during fault conditions. All packages have

an operating temperature range of TJ = –40°C to

125°C.

For high-performance applications that require a duallevel

voltage option, consider the TPS780 series, with

an IQ of 500 nA and dynamic voltage scaling.