TPS7A7002DDA集成电路（IC）的线性+开关稳压器规格书PDF中文资料

TPS7A7002DDA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TPS7A7002DDA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• Input Voltage as Low as 1.425 V

• 380-mV Maximum Dropout at 2 A

• 600-mV Maximum Dropout at 3 A

• Adjustable Output from 0.5 V

• Protections: Current Limit and Thermal Shutdown

• Enable Pin

• 1-μA Ground Current in Shutdown Mode

• Full Industrial Temperature Range

• Available in an SOIC-8, Fully RoHS-Compliant

Package

2 Applications

• Telecom and Networking Cards

• Motherboards and Peripheral Cards

• Industrial

• Wireless Infrastructure

• Set-Top Boxes

• Medical Equipment

• Notebook Computers

• Battery-Powered Systems

3 Description

The TPS7A7002 is a high-performance, positivevoltage,

low-dropout (LDO) regulator designed for

use in applications requiring very-low input voltage

and very-low dropout voltage at up to 3 A. The device

operates with a single input voltage as low as

1.425 V, and with an output voltage programmable to

as low as 0.5 V. The output voltage can be set using

an external divider.

The TPS7A7002 features ultra-low dropout, ideal for

applications where VOUT is very close to VIN.

Additionally, the TPS7A7002 has an enable pin for

further reduced power dissipation while in Shutdown

mode. The TPS7A7002 provides excellent regulation

over variations in line, load, and temperature.

The TPS7A7002 is available in an 8-pin SO

PowerPAD™ package.