Diode's AP2303x DDR LDO Regulators are low dropout linear regulators to generate termination voltage of DDR-SDRAM systems. The regulator can source or sink up to 1.75A current continuously. The output voltage is regulated to track tightly with the reference voltage (1/2VDDQ) within ±10mV. The AP2303x supports soft start-up when used to turn on the VCNTL and VREFEN. It integrates a shutdown circuit that will be triggered once the voltage of VIN, VCNTL or VREFEN falls below a certain value. AP2303x features over temperature protection and current limit protection for both source and sink. AP2303x is available in packages of SOIC-8 and PSOP-8.