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Solutions Search - LTC3717 - Wide Operating Range, No RSENSE Step-Down Controller for DDR/QDR Memory Termination

DDR Memory Power Supply: 4V to 24Vin, 1.25V@+/-10A Vtt (2.5V external reference)

Jan 2nd 2002
This circuit shows a ±10A design using LTC3717. The input voltage can vary from 5V to 24V. The input voltage can be below 5V if an external 5V bias is available for powering the VCC pin of LTC3717. This design uses only two SO-8 PowerPak MOSFETs from Siliconix to deliver ±10A current. To achieve a higher output current, use ...

Circuit 

 

DDR Memory Power Supply: 5V to 28Vin, 1.5V@+/-10A Vtt (3V external reference)

Jan 2nd 2002
The LTC3717 is a synchronous step-down switching regulator controller for double data rate (DDR) and Quad Data Rate (QDRTM) memory termination. The controller uses a valley current control architecture to deliver very low duty cycles without requiring a sense resistor. Operating frequency is selected by an external resistor ...

Circuit