LTC3618

Demonstration circuit 1726 is a dual high efficiency monolithic step-down (buck) DC/DC switching regulator designed for double-data-rate (DDR) memory termination in computer systems. The VDDQ output is capable of sourcing and sinking up to 3A with output voltages of 1.5V, 1.8V, 2.5V plus an optional voltage, selected using jumpers. The VTT output can also source and sink up to 3A with an output voltage equal to half of the VDDQ voltage, half of the input voltage or half of an externally applied voltage, selected using a jumper. An additional low current output (VTTR) equal to the VTT voltage capable of sourcing and sinking up to 10mA is included. Input voltage range is from 2.25V to 5.5V with overvoltage protection for transients exceeding 6.5V.

• Xilinx Artix^® UltraScale+^™ devices are the industry’s only cost-optimized FPGAs based on an advanced, production-proven 16nm architecture for best-in-class performance/watt.


• Analog Devices, Inc. supports power delivery solutions for the Artix Ultrascale+ low-cost designs. Monolithic solutions are used to power Xilinx FPGA and/or SoC rails as well as other system rails. These regulators are highly integrated discrete solutions optimized for cost, efficiency and footprint.


• ADI provides supporting documentation including power schematics, layout, LTpowerPlanner^® and applicable LTpowerPlay^® configuration files to enable you to validate the power solution for your application seamlessly.


• For a complete list power designs and use cases, please contact your local FAE.


• Key Power for full management devices are used as follows:


• LTC3307A
• LTC3309A
• ADP125
• LTC3617 (Optional DDR)
• LTC3618
• ADM1186 (Optional Monitoring & Sequencing)

• Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
• Our reference designs are supported by an intuitive design tool set and IP
• Our team can provide designs for quick prototypes that can speed time to market in the most complex applications

• The Versal^™ HBM series features heterogeneous integration of fast memory, secure connectivity, and adaptive compute to eliminate processing and memory bottlenecks for memory-bound, compute-intensive workloads such as machine learning, database acceleration, next-generation firewalls, and advanced network testers. Analog Devices has worked closely AMD to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
• ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. For a complete list  power designs and use cases, please contact your local local FAE.
• ADI has also completed a complete power evaluation report for Mid-High Voltage rails. For a complete report please submit your interest here.

Key power regulators are used for this device as follows:

• LTC3888-1
• LTC7051
• LTC3633A
• LTC7200S
• LTC7151S
• LT8652
• ADP125
• LTC3617 (Optional)
• LTC3618 (Optional)