TC572502ECT集成电路（IC）的线性稳压器规格书PDF中文资料

TC572502ECT属于集成电路（IC）的线性稳压器。由微芯科技股份有限公司制造生产的TC572502ECT稳压器 - 线性稳压器控制器线性电压调节是指使用与负载串联的旁路元件（通常是双极型或场效应晶体管）以及对应的驱动控制电路，以在负载两端产生恒定的标称电压，负载通常对电路的电源电压变化或负载电流不敏感。该系列中的产品提供与外部旁路元件配合使用所必需的控制功能，从而将其与集成线性稳压器区分开来，后者将旁路元件与控制电路整合在单个器件封装中。

General Description

The TC57 is a low dropout regulator controller that operates with an external PNP pass transistor, allowing the user to tailor the LDO characteristics to suit the application at hand. This results in lower dropout operation (and often lower cost) compared with traditional linear regulators with on-board pass transistors. The maximum output current of a TC57-based regulator circuit is limited only by the characteristics of the external pass transistor. For example, a maximum output current of 650mA (with a dropout voltage of 100mV) results when an FZT749 pass transistor is used, while a Darlington configuration can deliver up to 4A.

Flexibility, and superior performance make this family of regulator controllers the ideal choice in applications where low dropout voltage and low installed cost are key.

Features

• Low Dropout Voltage: 100mV @ 650mA with

FZT749 PNP Transistor

• 2.7V to 8V Supply Range

• Low Operating Current: 50A Operating,

0.2A Shutdown

• Low True Chip Enable

• Output Accuracy < ±2

• Small Package: 5-Pin SOT-23A

Applications

• Battery Operated Systems

• Portable Instruments

• High-Efficiency Linear Regulator

• Post-Regulator for SMPS

• Power Supply or Battery Back-Up Supply for Memory