TPS51113中文資料具有高電流柵極驅(qū)動器的 4.5V 至 13.2V、300kHz 同步降壓控制器數(shù)據(jù)手冊TI規(guī)格書

描述 Description

The TPS51113 and TPS51163 are cost-optimized, feature rich, single-channel synchronous-buck controllers that operates from a single 4.5-V to 13.2-V supply and can convert an input voltage as low as 1.5 V.The controller implements voltage mode control with a fixed 300-kHz (TPS51113) and 600-kHz (TPS51163) switching frequency. The overcurrent (OC) protection employs the low-side RDS(on) current sensing and has user-programmable threshold. The OC threshold is set by the resistor from LDRV_OC pin to GND. The resistor value is read when the over-current programming circuit applies 10 μA of current to the LDRV_OC pin during the calibration phase of the start-up sequence. The TPS51113/TPS51163 also supports output pre-biased startup. The strong gate drivers with low deadtime allow for the utilization of larger MOSFETs to achieve higher efficiency. An adaptive anti-cross conduction scheme is used to prevent shoot-through between the power FETs.

特性 Features

? Flexible Power Rails: 5 V to 12 V
? Reference: 800 mV ± 0.8%
? Voltage Mode Control
? Support Pre-biased Startup
? Programmable Overcurrent Protection with Low-Side RDS(on) Current Sensing
? Fixed 300-kHz (TPS51113) and 600-kHz (TPS51163) Switching Frequency
? UV/OV Protections and Power Good Indicator
? Internal Soft-start
? Integrated High-Current Drivers Powered by VDD
? 10-Pin 3 × 3 SON Package
? APPLICATIONS
? Server and Desktop Computer Subsystem Power Supplies (MCH, IOCH, PCI, Termination)
? Distributed Power Supplies
? General DC-DC Converters

簡介

TPS51113屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關(guān)式控制器。由TI制造生產(chǎn)的TPS51113DC-DC 開關(guān)控制器PMIC（電源管理集成電路）DC 到 DC 開關(guān)式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓?fù)浣Y(jié)構(gòu)可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。