Description

The SC1110 is a low-cost, full featured, synchronous voltage-mode controller designed to generate termination voltage in double data rate (DDR) memory systems and other applications where wide data bus need to be actively terminated. Synchronous control of the MOSFET half bridge allows power flowing bi-directionally. The termination voltage can be tightly regulated to track the chipset voltage, i.e. to be exactly 50 of that at all times.

Features

◆ Generates termination voltages for active termination schemes

◆ 1 set point accuracy

◆ For ±7A output current, transient regulation is better than ±80mV

◆ VREFIN pin available for external 50 resistive divider to allow termination voltage track of the chip set voltage

◆ Buffered VREFOUT for system usage

◆ RDSON sensing for over current protection in hiccup mode

◆ Soft start and logic input enabling

◆ 250kHz switching for best transient and efficiency performance

◆ Gate drive capable for 0.5A sourcing and sinking

Applications

◆ For DDR memory systems

◆ For active termination schemes in high speed logic systems

SC1110CSTRT屬于集成電路（IC） > PMIC - 穩(wěn)壓器 - DC DC 開關(guān)式控制器。Semtech Corporation制造生產(chǎn)的SC1110CSTRTDC-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。其他拓撲結(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。