TC1313屬于集成電路（IC）的線性穩(wěn)壓器控制器。由微芯科技股份有限公司制造生產(chǎn)的TC1313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。

描述 Description

The TC1313 combines a 500 mA synchronous buck regulator and 300 mA Low-Dropout Regulator (LDO) to provide a highly integrated solution for devices that require multiple supply voltages. The unique combination of an integrated buck switching regulator and low dropout linear regulator provides the lowest system cost for dual-output voltage applications that require one lower processor core voltage and one higher bias voltage.

特性 Features

? Dual-Output Regulator (500 mA Buck Regulator and 300 mA Low-Dropout Regulator (LDO))

? Total Device Quiescent Current = 57 μA (Typ.)

? Independent Shutdown for Buck and LDO Outputs

? Both Outputs Internally Compensated

? Synchronous Buck Regulator:

- Over 90 Typical Efficiency

- 2.0 MHz Fixed-Frequency PWM (Heavy Load)

- Low Output Noise

- Automatic PWM-to-PFM mode transition

- Adjustable (0.8V to 4.5V) and Standard Fixed-Output Voltages (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V)

? Low-Dropout Regulator:

- Low-Dropout Voltage = 137 mV Typ. @ 200 mA

- Standard Fixed-Output Voltages (1.5V, 1.8V, 2.5V, 3.3V)

? Small 10-pin 3X3 DFN or MSOP Package Options

? Operating Junction Temperature Range:

- -40°C to +125°C

? Undervoltage Lockout (UVLO)

? Output Short Circuit Protection

? Overtemperature Protection

Applications

? Cellular Phones

? Portable Computers

? USB-Powered Devices

? Handheld Medical Instruments

? Organizers and PDAs