TPS726中文资料具有电源正常指示和使能功能的 1A、超低压降稳压器数据手册TI规格书

描述 Description

The TPS726xx family of 1-A low-dropout (LDO) linear regulators has fixed voltage options available that are commonly used to power the latest DSPs, FPGAs, and microcontrollers. The integrated supervisory circuitry provides an active low RESET signal when the output falls out of regulation. The no capacitor/any capacitor feature allows the customer to tailor output transient performance as needed. Therefore, compared to other regulators capable of providing the same output current, this family of regulators can provide a stand alone power supply solution or a post regulator for a switch mode power supply. These regulators operate over a wide range of input voltages (1.8 V to 6 V) and have very low dropout (170 mV at 1-A). Ground current is typically 210 µA at full load and drops to less than 80 µA at no load. Standby current is less than 1 µA. Unlike some regulators that have a minimum current requirement, the TPS726xx family is stable with no output load current. The low noise capability of this family, coupled with its high current operation and ease of power dissipation, make it ideal for telecom boards, modem banks, and other noise sensitive applications. The TPS726xx is available in either a SOT223 or DDPAK package. The TPS726126 is available in a SOT223 package only.

特性 Features

• 1-A Low-Dropout Regulator Supports Input Voltages Down to 1.8-V
• Stable With Any Type/Value Output Capacitor
• Integrated Supervisor (SVS) With 200-ms RESET Delay Time
• Low 210-µA Ground Current at Full Load
• Integrated UVLO with Thermal and Overcurrent Protection
• APPLICATIONS
• Modem Banks and Telecom Boards
• Portable, Battery-Powered Applications
• TMS320vC5501
• TMS320vC5502

简介

TPS726属于集成电路（IC）的线性+开关稳压器。由TI制造生产的TPS726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。