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ADP1111:  Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V

Product Details


The ADP1111 is part of a family of step-up/step-down switching regulators that operates from an input voltage supply of 2 V to 12 V in step-up mode and up to 30 V in step-down mode. The ADP1111 can be programmed to operate in step-up/stepdown or inverting applications with only 3 external components.

The fixed outputs are 3.3 V, 5 V and 12 V; and an adjustable version is also available. The ADP1111 can deliver 100 mA at 5 V from a 3 V input in step-up mode, or it can deliver 200 mA at 5 V from a 12 V input in step-down mode.

Maximum switch current can be programmed with a single resistor, and an open collector gain block can be arranged in multiple configuration for low battery detection, as a post linear regulator, undervoltage lockout, or as an error amplifier.

FEATURES and BENEFITS

  • Operates from 2 V to 30 V Input Voltage Range
  • 72 kHz Frequency Operation
  • Utilizes Surface Mount Inductors
  • Very Few External Components Required
  • Operates in Step-Up/Step-Down or Inverting Mode
  • Low Battery Detector
  • User Adjustable Current Limit
  • Internal 1 A Power Switch
  • Fixed or Adjustable Output Voltage
  • 8-Pin DIP or SO-8 Package

Functional Block Diagram for ADP1111

Documentation

Title Content Type File Type
ADP1111: Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V Data Sheet  (Rev A, 11/2009) (pdf, 408 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
Understanding How Voltage Regulators Work Technical Articles HTML
DC-to-DC Switching Regulator IC Solutions (10/06)  (pdf, 3205 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
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

ADP1111 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP1111ANZ Status: Obsolete 8 ld PDIP 8 Comm. Tube, 50 - - Y  Material Info PCN Contact ADI
ADP1111ANZ-12 Status: Last Time Buy 8 ld PDIP 8 Comm. Tube, 50 - - Y  Material Info PCN/PDN Purchase
ADP1111ANZ-3.3 Status: Last Time Buy 8 ld PDIP 8 Comm. Tube, 50 - - Y  Material Info PCN/PDN Purchase
ADP1111ANZ-5 Status: Production 8 ld PDIP 8 Comm. Tube, 50 $2.44 $2.26 Y  Material Info PCN Purchase
ADP1111AR-REEL Status: Obsolete 8 ld SOIC 8 Comm. Reel, 2500 - - N  Material Info Notify Me Contact ADI
ADP1111ARZ Status: Production 8 ld SOIC 8 Comm. Tube, 98 $2.30 $2.11 Y  Material Info Notify Me Purchase
ADP1111ARZ-12-REEL Status: Production 8 ld SOIC 8 Comm. Reel, 2500 - $2.42 Y  Material Info Notify Me Purchase Sample
ADP1111ARZ-3.3 Status: Production 8 ld SOIC 8 Comm. Tube, 98 $2.30 $2.11 Y  Material Info Notify Me Purchase
ADP1111ARZ-5 Status: Production 8 ld SOIC 8 Comm. Tube, 98 $2.30 $2.11 Y  Material Info Notify Me Purchase
ADP1111ARZ-5-REEL Status: Last Time Buy 8 ld SOIC 8 Comm. Reel, 2500 - - Y  Material Info PDN Purchase
ADP1111ARZ-REEL Status: Production 8 ld SOIC 8 Comm. Reel, 2500 - - Y  Material Info Notify Me Purchase
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.


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