ADP5051:  Integrated Power Solution with Quad Buck Regulators, Supervisory, and I2C Interface

Product Details

Product Status:Recommended for New Designs

The ADP5051 combines four high performance buck regulators, and a supervisory circuit with a voltage monitor, watchdog, and manual reset in a 48-lead LFCSP package that meets demanding performance and board space requirements. The device enables direct connection to high input voltages up to 15.0 V with no preregulators.

Channel 1 and Channel 2 integrate high-side power MOSFET and low-side MOSFET drivers. In low-side power devices, use external NFETs to achieve an efficiency optimized solution and deliver a programmable output current of 1.2 A, 2.5 A, or 4 A.

Combining Channel 1 and Channel 2 in a parallel configuration provides a single output with up to 8 A of current. Channel 3 and Channel 4 integrate both high-side and low-side MOSFETs to deliver an output current of 1.2 A.

The ADP5051 supervisory circuits monitor voltage level. The watchdog timer generates a reset when the WDI does not toggle within a preset timeout period. Select manual reset functionality via the processor reset mode or system power on/off switch mode.

The optional I2C interface offers flexible configurations, including adjustable and fixed output voltage, junction temperature overheat warning, low input voltage detection, and dynamic voltage scaling.

APPLICATIONS

  • Small cell base stations
  • FPGA and processor applications
  • Security and surveillance
  • Medical applications

FEATURES and BENEFITS

  • Wide input voltage range: 4.5 V to 15.0 V
  • ±1.5% output accuracy over full temperature range
  • 250 kHz to 1.4 MHz adjustable switching frequency
  • Adjustable/fixed output options via factory fuse or I2C interface
  • I2C interface with interrupt on fault conditions
  • Power regulation
    Channel 1 and Channel 2: programmable 1.2 A/2.5 A/4 A sync buck regulators with low-side FET driver
    Channel 3 and Channel 4: 1.2 A sync buck regulators
  • Single 8 A output (Channel 1 and Channel 2 in parallel)
  • Dynamic voltage scaling (DVS) for Channel 1 and Channel 4
  • Precision enable with 0.8 V accurate threshold
  • Active output discharge switch
  • Programmable phase shift in 90° steps
  • Individual channel FPWM/PSM selection
  • Frequency synchronization input or output
  • See data sheet for additional features

Typical Application Circuit Diagram for ADP5051

Documentation

Title Content Type File Type
ADP5051: Integrated Power Solution with Quad Buck Regulators, Supervisory Circuit, and I2C Interface Data Sheet (Rev 0, 01/2014) (pdf, 1463 kB) Data Sheets PDF
Introduction to ADIsimPower
ADIsimPower is a smart selector and a collection of downloadable tools that produce complete and optimized power designs. Schematic, bill of materials, and performance data are customized to your specific needs in minutes.
Videos HTML
Tiny Integrated Solution Powers RF Agile Radio Applications and FPGAs (04 Mar 2014) Press Releases HTML
Integrated Power Solutions for Xilinx FPGAs  (pdf, 2253 kB)
Combining multiple switching regulators and LDOs into a single package enables very small, flexible, highly efficient power management solutions for powering FPGAs.
Solutions Bulletins PDF
Integrated Power Solutions for Altera FPGAs  (pdf, 2460 kB) Solutions Bulletins PDF
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADIsimPE Linear and Mixed-Signal Circuit Simulator
ADIsimPE is powered by SIMetrix/SIMPLIS and is a circuit simulation suite optimized for the design and development of analog and mixed signal circuits.
ADIsim Design/Simulation Tools HTML
ADP505x Buck Regulator Design Tool  (zip, 0)
Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.
ADIsim Design/Simulation Tools ZIP
Download files for ADIsimPower™ Voltage Regulator Design Tool
The individual Excel-based voltage regulator design tools used in ADIsimPower™.
ADIsim Design/Simulation Tools HTML
ADIsimPower™ Voltage Regulator Design Tool
This expert design tool produces custom DC-DC converter designs in about a minute. The user enters 5 inputs and chooses to optimize for efficiency, PCB space, cost, or part count. Output is a complete schematic, BOM, efficiency plot, and performance summary. A PDF summary and a blank PCB is offered for each design to facilitate fast prototyping to verify the design.
ADIsim Design/Simulation Tools HTML
Launch of ADIsimPower Voltage Regulator Selection Vin (min) V Vout V   Find Solutions
Vin (max) V Iout A

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADP5051 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP5051-EVALZ Status: Production Evalution Board $49.00 Yes -
USB-SDP-CABLEZ Status: Production USB to I2C Adapter $89.00 Yes -

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