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SC1110CSTRT

  

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Part NameSC1110CSTRT Semtech
Semtech Corporation Semtech
DescriptionSink and Source DC/DC Controller for Termination Power Supply Applications
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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

 

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