LTC3617

RECOMMENDED FOR NEW DESIGNS

±6A Monolithic Synchronous Step-Down Regulator for DDR Termination

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $4.55

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Part Details

±6A Output Current
2.25V to 5.5V Input Voltage Range
±10mV Output Voltage Accuracy
Optimized for Low Output Voltages Down to 0.5V
High Efficiency
Integrated Buffer for VTTR = VDDQIN • 0.5
Shutdown Current: <1µA
Adjustable Switching Frequency: Up to 4MHz
Optional Internal Compensation
Internal Soft-Start
Power Good Status Output
Input Overvoltage Protected
Thermally Enhanced 24-Pin 3mm × 5mm QFN Package

Part Models: 4
1ku List Price: Starting From $4.55

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3617EUDD#PBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3617EUDD#TRPBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3617IUDD#PBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC3617IUDD#TRPBF	24-Lead QFN (3mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Digital Power System Managers 1
LTC2974	RECOMMENDED FOR NEW DESIGNS	4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Silicon Oscillators 1
LTC6908		Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation

Tools & Simulations

LTspice 2

Models for the following parts are available in LTspice:

LTC3617

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTC3617EUDD Demo Board | VIN=2.25V to 5.5V, VOUT1 = 0.5VIN (VTT) @ ±6A, VOUT2 = 0.5VIN (VTTR) @ ±10mA

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Product Details

Demonstration circuit 1707 is a high efficiency monolithic step-down DC/DC switching regulator designed for double-data-rate (DDR) memory termination in computer systems. The VTT output is capable of sourcing and sinking up to 6A with an output voltage equal to one-half the voltage applied to the V_DDQIN terminal or one-half the input supply voltage, selected by a jumper. An additional low current output (VTTR) also equal to one-half the voltage on V_DDQIN can source and sink up to 10mA. Input voltage range is from 2.25V to 5.5V with overvoltage protection for transients exceeding 6.5V.

Resources

DC1707A - Schematic
3/28/2012

DC1707A - Demo Manual
7/21/2011

DC1707A - Design Files
7/21/2011

Reference Designs

Artix US+ Rail Consolidation – Minimum Rails (AU10P/15P) Power Tree

Minimum Rails for AU10/15P and AU20/25P - Non-Hardware Verified Design

View Detailed Reference Design

Features and Benefits

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)

Part Used

View Detailed Reference Design

Features and Benefits

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: