描述 Description

The TC1303A combines a 500mA synchronous buck regulator and a 300mA low-dropout (LDO) regulator with a power-good monitor to provide a highly integrated solution for applications that require multiple supply voltages. The power-good function monitors the output of the buck regulator.

特性 Features

Independent 300mA Low-Dropout Regulator
Power-good Monitor on the Buck Output with 300mS Delay
Both Outputs Internally Compensated
Independent Shutdown for the Buck and LDO Outputs
Automatic PWM to PFM mode transition
Small 10-Pin 3x3 DFN and MSOP
Undervoltage Lockout (UVLO)
Output Short Circuit and Overtemperature Protection

應(yīng)用 Application

? Cellular Phones
? Portable Computers
? USB-Powered Devices
? Handheld Medical Instruments
? Organizers and PDAs

簡介

TC1303A屬于集成電路（IC）的線性穩(wěn)壓器控制器。由制造生產(chǎn)的TC1303A穩(wěn)壓器 - 線性 + 開關(guān)此產(chǎn)品族中的產(chǎn)品用于構(gòu)建執(zhí)行 DC-DC 轉(zhuǎn)換或電壓調(diào)節(jié)功能的電路，采用的是開關(guān)模式和線性穩(wěn)壓器功能的組合。雖然具體的拓?fù)涓鞑幌嗤?，但此類產(chǎn)品的主要目的是將開關(guān)模式技術(shù)的效率優(yōu)勢與線性穩(wěn)壓技術(shù)的低噪聲特性結(jié)合在一起。