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ADP1715:  500 mA Low-Dropout CMOS Linear Regulator with Soft Start

Product Status:Production
Data
Sheet
ADP1715 Data Sheet Rev 0, 10/2006 (pdf 598kB)

Product Details

Product Status:Production
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The ADP1715/ADP1716 are low dropout, CMOS linear regulators that operate from 2.5 V to 5.5 V and provide up to 500 mA of output current. Using an advanced proprietary architecture, they provide high power supply rejection and achieve excellent line and load transient response with just a small 2.2 μF ceramic output capacitor.

Three versions of this part are available, one with fixed output voltage options and variable soft start (ADP1715), one with adjustable output voltage and fixed soft start (ADP1715 Adjustable), and one with voltage tracking in fixed output voltage options (ADP1716). The fixed output voltage options are internally set to one of sixteen values between 0.75 V and 3.3 V; the adjustable output voltage can be set to any value between 0.8 V and 5.0 V by an external voltage divider connected from OUT to ADJ. The variable soft start uses an external capacitor at SS to control the output voltage ramp. Tracking limits the output voltage to the at-or-below voltage at the TRK pin.

The ADP1715/ADP1716 are available in 8-lead thermally enhanced MSOP packages, making them not only a very compact solution but also providing excellent thermal performance for applications requiring up to 500 mA of output current in a small, low profile footprint.

Applications

  • Notebook computers
  • Memory components
  • Telecommunications equipment
  • Network Equipment
  • DSP/FPGA/µP supplies
  • Instrumentation equipment/data acquisition systems

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    FEATURES and BENEFITS

    • Maximum output current: 500 mA
    • Input voltage range: 2.5 V to 5.5 V
    • Low shutdown current: <1 μA
    • Low dropout voltage:
      250 mV @ 500 mA load
      50 mV @ 100 mA load
    • Initial accuracy: ±1%
    • Accuracy over line, load, and temperature: ±3%
    • 16 Fixed Output Voltage Options with soft start from 0.75V to 3.3V
    • Adjustable Output Voltage from 0.8V to 5.0V
    • Stable with small 2.2 μF ceramic output capacitor
    • Excellent load/line transient response
    • Current limit & thermal overload protection
    • Logic controlled enable

    Typical Application Circuit Diagram for ADP1715

    ADP1715 Diagram
    Typical Applications and Other Diagrams

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    Documentation

    Title Content Type File Type
    ADP1715/ADP1716: 500mA Low-Dropout Linear Regulator Data Sheet (Rev 0, 10/2006) (pdf, 598 kB) Data Sheets PDF
    AN-1072: How to Successfully Apply Low Dropout Regulators  (pdf, 105 kB)
    This application note reviews the basic LDO topology, explains key specifications, and shows the application of low dropout voltage regulators in systems.     		Application Notes PDF
    UG-181: PLC Demo System User Guide  (pdf, 541 kB) User Guides PDF
    The Fundamentals of LDO Design and Applications Technical Articles HTML
    ADP1829, ADP210x, ADP171x Reference Design  (pdf, 447 kB)
    Seven Output Voltages: 5.0 V, 3.6 V, 3.3 V, 2.5 V, 1.8 V, 1.2 V, 0.9 V; Output Current: 0.002 A to 3.0 A; Input voltage: 10.8-13.2 V; Ripple 2% ppk of Output Voltage; Transient step ±5%, 50% max load     		Power Reference Designs PDF
    ADP1829 and ADP1715 Reference Design  (pdf, 166 kB)
    Five Output Voltages: 5.0 V, 3.3 V, 3.3 V low noise, 2.5 V, 1.3 V; Output Current: 0.005 A to 1.65 A; Input voltage: 8-16 V; Ripple 2% ppk of Output Voltage; Transient step ±5%, 50% max load     		Power Reference Designs PDF
    ADP1829, ADP210x and ADP171x Reference Design  (pdf, 687 kB)
    Seven Output Voltages: 3.6 V, 3.3 V,3.3l V 2.5 V, 1.8 V, 1.25 V, 0.9 V; Output Current: 0.002 A to 3.0 A; Input voltage: 10.8-13.2 V; Ripple 2% ppk of Output Voltage; Transient step ±5%, 50% max load     		Power Reference Designs PDF
    What are LDOs and how are they used? FAQs/RAQs HTML
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Design Tools,Models,Drivers & Software

    Title Content Type File Type
    Download files for ADIsimPower™ Voltage Regulator Design Tool
    The individual Excel-based voltage regulator design tools used in ADIsimPower™.     		ADIsim Design/Simulation Tools HTML
    Enter values and click on ADIsimPower to find power management solutions. Launch of ADIsimPower Voltage Regulator Design Tool
    Available System Voltage Operating Voltage Rail Load Current
    Vin (min) V Vin (max) V Vout 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

    ADP1715 Model Options
    Model Package Pins Temp.
    Range         		Packing,
    Qty         		Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADP1715ARMZ-0.75R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-0.8-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-0.85R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-0.9-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-0.95R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-1.0-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-1.05R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-1.1-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-1.15R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-1.2-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-1.3-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-1.5-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-1.8-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-2.5-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-3.0-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase
    ADP1715ARMZ-3.3-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 Y  Material Info PCN Purchase Sample
    ADP1715ARMZ-R7 Status: Production 8 ld MSOP 8 Ind Reel, 1000 - $0.83 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.

    ADP1715 Evaluation Board
    Model Description Price RoHS View PCN/ PDN Check Inventory/
    Purchase/Sample
    ADP1715-1.8-EVALZ Status: Production Evaluation Board $60.72 Yes -
    ADP1715-3.3-EVALZ Status: Production Evaluation Board $60.72 Yes -
    ADP1715-EVALZ Status: Production Evaluation Board $60.72 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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