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ADP2102:  Low Duty Cycle, 600 mA, 3 MHz Synchronous Step-Down DC-to-DC Converter

Product Details


Newer Alternatives: NEW DESIGNS:
ADP2108 Compact, 600 mA, 3 MHz, Step-Down DC-to-DC Converter

The ADP2102 is a synchronous step-down dc-to-dc converter that converts a 2.7 V to 5.5 V unregulated input voltage to a lower regulated output voltage with up to 95% efficiency and 1% accuracy. The low duty cycle capability of the ADP2102 is ideal for USB applications or 5 V systems that power up submicron subvolt processor cores. Its 3 MHz typical operating frequency and excel-lent transient response allow the use of small, low cost 1 μH inductors and 2.2 μF ceramic capacitors. At medium-to-high load currents, it uses a current mode, pseudofixed frequency pulse-width modulation to extend battery life. To ensure the longest battery life in portable applications, the ADP2102 has a power save mode (PSM) that reduces the switching frequency under light load conditions to significantly reduce quiescent current.

The ADP2102 is available in both fixed and adjustable output voltage options with 600 mA maximum output current. The preset output voltage options voltage are 1.875 V, 1.8 V, 1.5 V, 1.375 V, 1.25 V, 1.2 V, 1.0 V, and 0.8 V. The adjustable voltage option is available from 0.8 V to 3.3 V. The ADP2102 requires only three external components and consumes 0.01 μA in shutdown mode.

The ADP2102 is available in an 8-lead LFCSP package and is specified for the −40 °C to +85 °C temperature range.

Applications

  • USB powered devices
  • WLAN and gateways
  • Point of loads
  • Processor core power from 5 V
  • Digital cameras
  • PDAs and palmtop computers
  • Portable media players, GPS

FEATURES and BENEFITS

  • Input voltage range: 2.7 V to 5.5 V
  • 600 mA maximum load current
  • 95% efficiency
  • Low duty cycle operation
  • Only 3 tiny external ceramic components
  • 3 MHz typical operating frequency
  • Fixed output voltage from 0.8 V to 1.875 V
  • Adjustable output voltage up to 3.3 V
  • 0.01 μA shutdown supply current
  • Automatic power save mode
  • Internal synchronous rectifier
  • Internal soft start

Circuit Diagram for ADP2102

Documentation

Title Content Type File Type
ADP2102: Low Duty Cycle, 600 mA, 3 MHz Synchronous Step-Down DC-to-DC Converter Data Sheet (Rev B, 09/2007) (pdf, 785 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
Isolating Power in Communication Bus and Gate Drive Applications
Starting with a communications application overview of small power options through the process of selecting the right power products this webcast is a great resource for your communications applications designs.
Webcasts WEBCAST
Understanding How Voltage Regulators Work 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, 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
DC-to-DC Switching Regulator IC Solutions (10/06)  (pdf, 3205 kB) Overview PDF
ADP2102 - Low Duty Cycle, 600 mA, 3 MHz Synchronous Step-Down DC-to-DC Converter  (pdf, 2217 kB) Overview PDF
600 mA, 3 MHz Synchronous Step-Down DC-to-DC Converter  (pdf, 2285 kB) Overview PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADP21xx 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

ADP2102 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP2102YCPZ-0.8-R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase
ADP2102YCPZ-1-R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase
ADP2102YCPZ-1.0-R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase
ADP2102YCPZ-1.2-R7 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - $1.23 Y  Material Info PCN Purchase Sample
ADP2102YCPZ-1.25R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase Sample
ADP2102YCPZ-1.37R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase
ADP2102YCPZ-1.5-R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase Sample
ADP2102YCPZ-1.8-R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase Sample
ADP2102YCPZ-1.87R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase Sample
ADP2102YCPZ-2-R7 Status: Last Time Buy 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - - Y  Material Info PCN/PDN Purchase
ADP2102YCPZ-3-R7 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - $1.23 Y  Material Info PCN Purchase
ADP2102YCPZ-4-R7 Status: Production 8 ld LFCSP (3x3mm) 8 Ind Reel, 1500 - $1.23 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.

ADP2102 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP2102-0.8-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1.0-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1.25-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1.2-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1.375EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1.5-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1.875EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1.8-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-1-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-2-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-3-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP2102-4-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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