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UNISONIC TECHNOLOGIES CO., LTD
UR6515A
LINEAR INTEGRATED CIRCUIT
3A DDR BUS TERMINATION REGULATOR
DESCRIPTION
The UR6515A is a linear regulator providing up to 3A transient peak current sourcing and sinking capability for DDR SDRAM bus terminator applications while regulating an output voltage to within 40mV. It contains a high speed operational amplifier which provides fast load transient response and only requires 10uF of ceramic output capacitance.
The UR6515A output termination voltage tracks the reference voltage applied at VREF pin. A resistor divider connected to VIN, GND and VREF pins is used to force the reference voltage to VREF pin. Additional features include current limiting protection and thermal shutdown protection.