Typical Applications Circuit
5.5 U6
The SP2996B voltage regulator is designed to convert voltage supplies ranging from 1.6v to
6v into a desired output voltage which is adjusted by an external resistor divider. The regulator is
capable of sourcing or sinking up to 2A of Continuous current while regulating an output voltage
to within 20mv. The SP2996B provides an excellent voltage source for active termination schemes
of high speed transmission lines such as those seen in high speed memory buses and distributed
backplane designs when used in conjunction with series termination resistors.The voltage output
of the regulator can be used as a termination voltage for DDR SDRAM,and it meets the JEDEC
SSTL-2 and SSTL-3 specifications.Current limits in both sourcing and sinking mode,plus on-chip
thermal shutdown make the circuit tolerant of output fault conditions.
Block Diagram
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