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ADP2300:  1.2 A, 20 V, 700 kHz Nonsynchronous Step-down Switching Regulator

Product Details

Product Status:Recommended for New Designs

The ADP2300/ADP2301 are compact, constant-frequency, current-mode, step-down dc-to-dc regulators with integrated power MOSFET. The ADP2300/ADP2301 devices run from any input voltage from 3.0 V up to 20 V, making them suitable for a wide range of applications. A precise, low voltage internal reference makes these devices ideal for generating a regulated output voltage as low as 0.8 V, with ±2% accuracy, for up to 1.2 A load current.

There are two frequency options: the ADP2300 runs at 700 kHz and the ADP2301 runs at 1.4 MHz. These options allow users to make decisions based on the trade-off between efficiency and the size of the total solution. Current-mode control provides fast and stable line and load transient performance. Each ADP2300/ ADP2301 device includes an internal soft start to prevent inrush current at power up. Other key safety features include short-circuit protection, thermal shutdown (TSD) and input undervoltage lockout (UVLO). Precision enable pin threshold voltage allows ADP2300/ADP2301 to be easily sequenced from other input/ output supplies, or the enable pin can be used as a programmable UVLO input by using resistive divider.

The ADP2300/ADP2301 are available in a 6-lead TSOT package and are rated for the −40°C to +125°C junction temperature range.

Applications
  • LDO replacement for digital load applications
  • Intermediate power rail conversion
  • Communications and networking
  • Industrial and instrumentation
  • Healthcare and Medical
  • Consumer

FEATURES and BENEFITS

  • Chinese data sheet available
  • High efficiency, up to 91%
  • 1.2 A maximum load current
  • ±2% output accuracy over temperature range
  • Wide input voltage range: 3.0 V to 20 V
  • 700kHz (ADP2300) or 1.4MHz (ADP2301) switching frequency options
  • Current-mode control architecture
  • Output voltage from 0.8 V to 0.85×VIN
  • Automatic PFM/PWM mode switching
  • Precision enable pin with hysteresis
  • Integrated high-side MOSFET
  • Available in ultrasmall, 6-lead TSOT package
  • See data sheet for additional features

Functional Block Diagram for ADP2300

Documentation

Title Content Type File Type
ADP2300/ADP2301: 1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down Regulator Data Sheet (Rev C, 11/2012) (pdf, 683 kB) Data Sheets PDF
AN-1141: Powering a Dual Supply Precision ADC with Switching Regulators  (pdf, 640 kB) Application Notes PDF
AN-1083: Designing an Inverting Buck Boost Using the ADP2300 and ADP2301 Switching Regulators  (pdf, 217 kB)
Although targeted for voltage step-down applications, the versatility of the ADP230x family allows it to realize an inverting buck boost topology without additional cost, component count, or size.
Application Notes PDF
CN-0183: Precision 16-Bit, Bipolar Output Voltage Source with +12 V to ±5 V Supply  (pdf, 252 kB) Circuit Note 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
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
UG-179: Evaluation Board for the 1.2 A, 20 V Nonsynchronous Step-Down Regulators  (pdf, 422 kB) User Guides PDF
Industrial ICs
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
Solutions Bulletins HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADP230x Inverting Buck-Boost 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
ADP230x 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

ADP2300 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP2300AUJZ-R2 Status: Production TSOT-23 5, 6, 8 lead 6 Ind Reel, 250 $1.26 $1.26 Y  Material Info Notify Me Purchase
ADP2300AUJZ-R7 Status: Production 6 ld TSOT 6 Ind Reel, 3000 - $0.81 Y  Material Info Notify Me 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.

ADP2300 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP2300-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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