DDR Termination Regulator CXEP3474 is a linear regulator designed to meet the JEDEC SSTL (Series Stub Termination Logic) specifications in DDRI/II/III/IIIL/IV –SDRAM systems. It provides accurate and

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The CXEP3474 is a linear regulator designed to meet the JEDEC SSTL (Series Stub Termination Logic) specifications in DDRI/II/III/IIIL/IV –SDRAM systems. It provides accurate and fast response with up to 1.8A source/sink ability in load transient to track reference voltage. The terminated voltage can be generated by two external resistors or programmed by forcing VREF pin at a desired voltage. Also the CXEP3474 operate in low power consumption as low as 0.7mA and it has a shutdown function by setting VREF lower than 0.15V then the VTT is turned off and discharged via an internal MOSFET. This function obtains low quiescent current as 50μA for STR mode.

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„ Support DDR I (1.25 VTT), DDR II (0.9 VTT), DDR III (0.75 VTT), DDR IIIL (0.675VTT) and DDR IV (0.6 VTT) RequirementszB8嘉泰姆

„ VCNTL Supply Voltage: 3V to 5.5V zB8嘉泰姆

„ Termination Supply Voltage : 1.2V to 3.6V zB8嘉泰姆

„ Stable with Output Ceramic Capacitor zB8嘉泰姆

„ Over Current Protection zB8嘉泰姆

„ Thermal Shutdown Protection zB8嘉泰姆

„ Shutdown Function for STR (S3) Mode zB8嘉泰姆

„ Adjustable Output Voltage with Resistors zB8嘉泰姆

„ Built-In Soft-Start zB8嘉泰姆

„ Power MOS integrated zB8嘉泰姆

„ SOP-8 (FD) and MSOP-8 (FD) Package zB8嘉泰姆

„ RoHS CompliantzB8嘉泰姆

   应用范围 返回TOPzB8嘉泰姆

„ DDR I/II/III/IIIL/IV Memory Termination zB8嘉泰姆

„ SSTL_3, SSTL_2, SSTL_18, SSTL_15 zB8嘉泰姆

„ Notebook/Desktop/Server zB8嘉泰姆

„ Telecom/Datacom, GSM Base Station, LCD-TV/PDP-TV, Copier/Printer, Set-Top BoxzB8嘉泰姆

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