LTC7051
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LTC7051

SilentMOS Smart Power Stage in 5mm × 8mm LQFN

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 1
1ku List Price Starting From $6.34
Features
  • 140A Peak Output Current
  • SilentMOS Smart Power Stage
    • Utilizes Low EMI/EMC Silent Switcher®2 Architecture
    • Ultra-Low SW-Voltage Overshoot
    • Frequency Up to 2MHz
  • VIN Up to 14V
  • Up to 94% Efficiency at 1MHz with 1.8VOUT
  • Integrated Boost Diode and Capacitors and Power Switches
  • Accurate Switch Current Monitoring
  • Power MOSFET Overcurrent Protection
  • Input Overvoltage and Bias Undervoltage Protection
  • 3.3V/5V Compatible Tri-State PWM Input Thermal Monitor with Overtemperature Flag
  • 5mm × 8mm LQFN Package
Additional Details
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The LTC7051 monolithic power stage fully integrates high speed drivers with low resistance half-bridge power switches plus comprehensive monitoring and protection circuitry in an electrically and thermally optimized package. With a suitable high frequency controller, this power stage forms a compact, high current voltage regulator system with state-of-the-art efficiency and transient response.

SilentMOS technology utilizes second generation Silent Switcher 2 architecture reducing both EMI and switch-node voltage overshoot while maximizing efficiency at high switching frequencies.

High speed current sensing provides low latency switch current information, enabling tight current balancing and immediate overcurrent protection.

Thermally-enhanced packaging provides 70A rated output continuous current capability.

Applications

  • High Current Servers and Workstations
  • Networking/Telecom Microprocessor Supplies
  • Small Form-Factor POL Converter
Part Models 1
1ku List Price Starting From $6.34

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC7051AV#PBF
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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DC2888A-A/
DC2888A-B

Evaluating the LTC3888/LTC3888-1, 8-Phase, Single Output Synchronous Buck Converter with Power System Management

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DC2888A-A/<br>DC2888A-B

Evaluating the LTC3888/LTC3888-1, 8-Phase, Single Output Synchronous Buck Converter with Power System Management

Evaluating the LTC3888/LTC3888-1, 8-Phase, Single Output Synchronous Buck Converter with Power System Management

Features and Benefits

  • Input voltage range: 7 V to 14 V
  • Output voltage VOUT Max output current: 400 A
  • Number of phases: 8
  • Current sense
  • Temperature monitor
  • PM bus compliant with digital power system management

Product Detail

Demonstration circuit DC2888A-A/DC2888A-B is an 8-phase single- output, high efficiency, high density, synchronous buck converter with 7 V to 14 V input range. The output can supply up to 400 A maximum load current. The demo board showcases one LTC3888/LTC3888-1 working with eight LTC7051. The LTC3888/ LTC3888-1 is a PMBus-compliant dual loop 8-phase step-down DC/DC controller with digital power system management. LTC7051 is an integrated smart power stage with current sense and temperature monitor. Refer to the LTC3888/LTC3888-1 and LTC7051 data sheets for detailed information.

DC2888A-A/DC2888A-B powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay ™ on your PC and use Analog Devices' I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows to reconfigure the part on the fly and store the configuration in electrically erasable programmable read-only memory (EEPROM), and view the telemetry of voltage, current, temperature, and fault status.

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DC3170A

4-Phase Step-Down Supply with Power System Management

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DC3170A

4-Phase Step-Down Supply with Power System Management

4-Phase Step-Down Supply with Power System Management

Product Detail

Demonstration circuit DC3170A‐A/‐B features the LTC7883 and LTC7051 in a high current, high efficiency 4-phase step-down converter. The LTC7883 itself is a 4-channel, 4-phase, voltage mode step‐down controller with a PSM interface. The LTC7051 is a SilentMOS™ smart power stage that integrates high speed drivers with low RDS(ON) MOSFETs. The DC3170A‐A/‐B comes in two different assembly types, which are specified below:

DC3170A‐A: LTC7883 + LTC7051 Demo Board with Four Outputs

  • VOA0 = 0.75V/50A
  • VOA1 = 0.9V/50A
  • VOB0 = 1.0V/50A
  • VOB1 = 1.2V/50A

DC3170A‐B: LTC7883 + LTC7051 Demo Board with Single Output

  • VOUT = 1.0V/200A, 4‐phase

The DC3170A‐A/‐B operates with a switching frequency of 500kHz over an input voltage range of 7V to 14V. Each LTC7051 is driven by a three‐state PWM output of the LTC7883, while the LTC7051’s current sense and temperature outputs are monitored by the LTC7883. The DC3170A‐A/‐B does not require external serial bus communications to run. It uses settings pre‐programmed in the non-volatile memory of the LTC7883.

To fully explore the extensive power system management features of the LTC7883, download LTpowerPlay® onto the PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the LTC7883 while running, store the configuration in non-volatile memory, view telemetry of voltage, current, temperature, fault status, and more. For more details and instructions on LTpowerPlay, see the LTpowerPlay Software GUI section of this manual. The LTC7883 and LTC7051 data sheets provide a complete description of the IC operation and application information and must be read in conjunction with this demo manual.

Tools & Simulations

Tools & Simulations 1

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.

Reference Designs

Reference Designs 1

Versal HBM Diagram

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xilinx-minimum-rails

xilinx-minimum-rails

Circuits from the lab

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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)
View Detailed Reference Design external link

Reference Designs1

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