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NJW4118 Series
±2.0A DDR Termination Regulator

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  • Description

    The NJW4118 is a sink/source (±2A) termination regulator for DDR-SDRAM. The NJW4118 contains a high-speed operational amplifier that provides excellent transient response. The NJW4118 can configure the two patterns of VREF +VTT output or VTT standalone output by change of wiring. Even if VREF is generated outside, VTT is able to subordinate to VREF because there is VREF_IN Pin. When using at VTT standalone, it is possible to contribute to low power consumption because VREF circuit can be completely stopped. Regarding the EN function, each output becomes as the following status: VREF is Active and VTT is OFF (Discharge) at EN=Low.


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  • Spec
    Supply Voltage 2.7V to 5.5V
    Structure Bi-CMOS Technology
    Wide Operating Temperature -40℃ to +125℃
    Junction Temp. +150℃
    Package EQFN16-JE
    VREF Voltage Accuracy VDDQx0.49 to 0.51
    VTT Voltage Accuracy VREF±40mV
    Status at EN Low VTT Output: OFF (Discharge) VREF Output: Active
    Note Meets DDR-SDRAM Power Supplies
    ±2A Source and Sink Current
    Correspond to external VREF source
    Correspond to MLCC
    Thermal Shutdown Protection
    Power Good (PG)
    Over Current Protection
    Under Voltage Lock Out(UVLO)
    VTT discharge function
  • Technical
  • Quality &
    • Refer to the datasheets for the details on the product.
    • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

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Functional Description

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