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AP2301D-E1 Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AP2301D-E1 Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
1 / 12 page 1.5A DDR TERMINATION REGULATOR AP2301 Preliminary Datasheet 1 Jul. 2006 Rev. 1. 3 BCD Semiconductor Manufacturing Limited Figure 1. Package Types of AP2301 SOIC-8 General Description The AP2301 linear regulator is designed to meet the JEDEC specification SSTL-2 and SSTL-18 for termi- nation of DDR-SDRAM. The regulator can sink or source up to 1.5A current continuously, offers enough current for most DDR applications. Output voltage is designed to track the reference voltage within a 2% tolerance for load regulation while preventing shooting through on the output stage. On-chip thermal limiting provides protection against a combination of high cur- rent and ambient temperature which would create an excessive junction temperature. The AP2301, used in conjunction with series termina- tion resistors, provides an excellent voltage source for active termination schemes of high speed transmission lines as those seen in high speed memory buses and distributed backplane designs. The AP2301 is available in SOIC-8 and TO-252-5L packages. Features · Support Both DDR I (1.25VTT) and DDR II (0.9VTT) Requirements · Source and Sink Current up to 1.5A · High Accuracy Output Voltage at Full-load · Adjustable VOUT by External Resistors · Shutdown for Standby or Suspend Mode Operation with High-impedance Output Applications · DDR-SDRAM Termination · DDR-II Termination · SSTL-2 Termination TO-252-5L |
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