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ADP2114:  Configurable, Dual 2 A/Single 4 A, Synchronous Step-Down DC-to-DC Regulator

Product Details


The ADP2114 is a highly versatile, synchronous step-down, switching regulator that can be configured to satisfy a wide range of customer point of load requirements. The two PWM channels can be configured to deliver independent outputs at 2 A and 2 A (or 3 A/1 A) or can be configured as a single interleaved output capable of delivering 4 A. The two PWM channels are 180º phase shifted to reduce input ripple current and reduce input capacitance.

The ADP2114 provides high efficiency performance at full loads, enabling high switching frequencies at up to 1.2 MHz. At light loads, the ADP2114 can be set to operate in pulse skip mode for higher efficiency or in forced PWM mode to reduce EMI.

The device is designed with an optimized gate slew rate to reduce ENI emissions, allowing the device to supply sensitive, high performance signal chain applications. The frequency can be set to 300 kHz, 600 kHz and 1.2 MHz and can be synchronized to an external clock signal, minimizing the system noise between converters. The bidirectional synchronization pin is also configurable as a 90º out-of-phase output clock, providing the possibility for a stackable multiphase power solution. The ADP2114 input voltage range is from 2.75 V to 5.5 V, and it converts to fixed outputs of 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, or 3.3 V that can be set independently for each channel using external resistors. Using a resistor divider, it is also possible to set the output voltage as low as 0.6 V. The ADP2114 operates over the −40°C to +125°C junction temperature range.


Applications
  • Point-of-load regulation
  • Telecom and networking systems
  • Consumer electronics
  • Industrial and Instrumentation
  • Medical
  • FEATURES and BENEFITS

    • Configurable 3 A/1 A or 2 A/2 A dual output load combinations or 4 A combined single output
    • High efficiency: up to 95%
    • Input voltage VIN: 2.75 V to 5.5 V
    • Selectable fixed output: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V or adjustable output voltage to 0.6 V minimum
    • ±1.5% accuracy reference voltage
    • Selectable fixed switching frequency: 300 kHz, 600 kHz, or 1.2 MHz
    • Optimized gate slew rate for reduced EMI
    • External synchronization or internal clock output
    • Dual-phase, 180° shifted PWM channels
    • Current mode for fast transient response, no current sense resistor required
    • Pulse-skip under light load or forced PWM operation
    • See data sheet for additonal features

    Functional Block Diagram for ADP2114

    Documentation

    Title Content Type File Type
    ADP2114: Configurable, Dual 2 A/Single 4 A, Synchronous Step-Down DC-to-DC Regulator Data Sheet (Rev B, 12/2012) (pdf, 2524 kB) Data Sheets PDF
    AN-1144: Measuring Output Ripple and Switching Transients in Switching Regulators  (pdf, 3427 kB) Application Notes PDF
    CN-0190: Robust, Multivoltage, High Efficiency, 25 W Universal Power Supply Module with 6 V to 14 V Input  (pdf, 357 kB) Circuit Note PDF
    ADP2114: Highly Configurable Synchronous Step-Down DC-DC Converter
    The ADP2114 is a dual channel step down switching regulator with integrated MOSFETs and is designed to be extremely versatile. The device can be configured as two channels with output current 2A and 2A or with one output supplying 3A and the other 1A or alternatively, the device can be configured as a single, interleaved output supporting 4A total current.
    Videos HTML
    Understanding How Voltage Regulators Work Technical Articles HTML
    Powering High Speed Analog-to-Digital Converters with Switching Power Supplies  (pdf, 2478 kB)
    This article demonstrates that analog-to-digital converters can be powered directly from switching power supplies with no loss in performance if careful design practice is followed.
    (Power Management DesignLine, May 2009)
    Technical Articles PDF
    Digital-to-Analog Converter ICs Solutions Bulletin, Volume 10, Issue 1  (pdf, 1809 kB) Solutions Bulletins PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    ADP2114/16 Dual 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.

    Product Recommendations & Reference Designs

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    Price, packaging, availability

    ADP2114 Model Options
    Model Package Pins Temp.
    Range
    Packing,
    Qty
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADP2114ACPZ-R2 Status: Production LFCSP:LEADFRM CHIP SCALE 32 Ind Reel, 250 - - Y  Material Info PCN Purchase
    ADP2114ACPZ-R7 Status: Production 32 ld LFCSP (5x5mm CP-32-2) 32 Ind Reel, 1500 - $1.88 Y  Material Info PCN Purchase Sample
    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.

    ADP2114 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADP2114-2PH-EVALZ Status: Production Evaluation Board $60.00 Yes -
    ADP2114-EVALZ Status: Production Evaluation Board $60.00 Yes -

    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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