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FAN1655 3A DDR Bus Termination Regulator
January 2006
FAN1655
3A DDR Bus Termination Regulator
Description
The FAN1655 is a low-cost bi-directional LDO
specifically designed for terminating DDR memory bus. It
can both sink and source up to 2.1A continuous, 3A
peak, providing enough current for most DDR appli-
cations. Load regulation meets the JEDEC spec, VTT =
VREFOUT ± 40mV.
The FAN1655 includes a buffered reference voltage
capable of supplying up to 5mA current. On-chip thermal
limiting provides protection against a combination of
power overload and ambient temperature that would
create an excessive junction temperature. A shutdown
input puts the FAN1655 into a low power mode.
The FAN1655 regulator is available in a power-enhanced
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