DIODES AP2303MTR-G1

The AP2303 is a low dropout linear regulator to generate termination voltage of DDR- SDRAM system. 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 AP2303 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. The AP2303 features over temperature protection and current limit protection for both source and sink. The AP2303 is available in packages of SOIC- 8 and PSOP- 8.

• Support DDR-II (VT = 0.9V), DDR-III (VT = 0.75V), DDR-IIIL (VT = 0.675V), DDR-IV (VT = 0.6V)
• Source and Sink up to 1.75A Current
• Output Voltage Accuracy Over Full Load: ± 2% (max.)
• Soft Start-up and Shutdown along with VIN, VCNTL and VREFEN Rising and Shutdown along with VIN, VCNTL and VREFEN Dropping
• Flexible Output by 2 External Resistors
• Requires minimum 10μF Output Ceramic Capacitor for Application
• Current Limit Protection for Both Source and Sink
• OTSD Protection
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. "Green" Device

• DDR-II/DDR-III/DDR-IIIL/DDR-IV memory systems
• Desktop PCs, notebook mother boards
• Graphic cards
• STB, LCD-TV, Web-TV