LTC7151S

PRODUCTION

20V, 15A Synchronous Step-Down Silent Switcher 2 Regulator

Part Models
8
1ku List Price
Starting From $4.42
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Part Details

  • Silent Switcher®2 Architecture for Low EMI
  • VIN Range: 3.1V to 20V
  • VOUT Range: 0.5V to 5.5V
  • Differential VOUT Remote Sense
  • Adjustable Frequency: 400kHz to 3MHz
  • PolyPhase® Operation: Up to 12 Phases
  • Output Tracking and Soft-Start
  • AEC-Q100 Qualified for Automotive Applications
  • Reference Accuracy: ±1% Overtemperature
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Accurate 1.2V Run Pin Threshold
  • Supports Forced Continuous/Discontinuous Modes
  • 28-Lead Thermally Enhanced 4mm × 5mm × 0.74mm LQFN Package
LTC7151S
20V, 15A Synchronous Step-Down Silent Switcher 2 Regulator
LTC7151S Application Circuit LTC7151S Performance Graph LTC7151S Pin Configuration
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Tools & Simulations

LTspice

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.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.


Evaluation Kits

eval board
DC2615A

LTC7151S High Efficiency 15A Silent Switcher Buck Regulator

Features and Benefits

  • Selectable light load operating modes of continuous conduction mode (CCM) or discontinuous mode (DCM).
  • SYNC pin to synchronize the regulator to an external clock.
  • PGOOD pin and RUN pin

Product Details

Demonstration circuit 2615A features the LTC7151S in a high efficiency 1.2V/15A step-down regulator with an input voltage range of 3.1V to 20V and a 1MHz switching frequency. The Silent Switcher®2 technology reduces the switching noise while the internal MOSFETs of the LTC7151S provide high efficiency over a wide input voltage range. No current sense resistor is required.

The LTC7151S employs a controlled on-time, valley current mode architecture. This architecture allows for a short minimum on-time which is ideal for high stepdown ratios. In addition, the architecture provides a fast load step response by allowing the switch node pulses to compress after the load steps up – see Figure 6.

The LTC7151S data sheet provides a complete description of the IC operation and application information. The data sheet must be read in conjunction with the quick start guide.

DC2615A
LTC7151S High Efficiency 15A Silent Switcher Buck Regulator
DC2615A Evaluation Board DC2615A Evaluation Board - Top View DC2615A Evaluation Board - Bottom View DC2615A_UG-1381 Application Circuit

Reference Designs

Blaize<sup>&reg;</sup> Pathfinder P1600 Embedded System on Module
Blaize Pathfinder Circuits from the lab

Pathfinder P1600 SOM Module

Features and Benefits

Blaize® Pathfinder P1600 small form factor embedded SoM brings the programmability and efficiency benefits of the Blaize GSP® architecture, ideal for AI inferencing workloads at the edge, to embedded systems.

Analog Devices, Inc. supports end to end power delivery solutions for Blaize Pathfinder P1600 SOM. Blaize uses Analog Devices discrete power solutions to enable their System on Chip (SoC) to deliver high compute with optimized with most TOPS/Watt performance for datacenter and Artificial Intelligence.

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:

  • LTC7151S
  • LT8609S
  • LTC3636
  • ADP1752
  • ADP1755
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Circuits from the lab

Altera FPGA

Features and Benefits

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
  • For a complete list power designs and use cases, please contact your local FAE.
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Circuits from the lab

Altera FPGA

Features and Benefits

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • 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.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
  • For a complete list power designs and use cases, please contact your local FAE.
Full Power Management (-L Devices)​
Versal Premium Circuits from the lab

Non-Hardware Verified Design

Features and Benefits

  • Xilinx Versal Premium series solves a broad range of industry-specific problems with performance and flexibility. Core use cases include storage acceleration, data center network acceleration, 5G xHaul and Passive optical networks.

  • Analog Devices, Inc. supports power delivery solutions for the Versal Premium Platform. Monolithic solutions are used on the Versal Premium Platform 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:

    • LTC3884-1
    • LTC7051
    • ADP5056
    • LTC7132
    • ADP2389
    • ADP5052
    • ADP5054
    • LTC7150S
    • LTC7151S
Versal HBM Diagram
Versal HBM Non-Hardware Verified Design Circuits from the lab

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:

  • LTC3888-1
  • LTC7051
  • LTC3633A
  • LTC7200S
  • LTC7151S
  • LT8652
  • ADP125
  • LTC3617 (Optional)
  • LTC3618 (Optional)
Blaize Pathfinder
Pathfinder P1600 SOM Module
Blaize<sup>&reg;</sup> Pathfinder P1600 Embedded System on Module
Blaize<sup>&reg;</sup> Pathfinder P1600 SOM Power Tree
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic)
Altera FPGA
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Power Tree
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile)
Altera FPGA
Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Power Tree
Versal Premium
Non-Hardware Verified Design
Full Power Management (-L Devices)​
Full Power Management (-L Devices) PS Overdrive
Versal HBM Non-Hardware Verified Design
Versal HBM Diagram

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