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ADP1712:  300 mA, Low Dropout CMOS Linear Regulator

Product Details


The ADP1712/ADP1713/ADP1714, available in a tiny, 5-lead TSOT package, are low dropout linear regulators that operate from 2.5 V to 5.5 V and provide up to 300 mA of output current. The low 170 mV dropout voltage at a 300 mA load improves efficiency and allows operation over a wide input voltage range. Using a novel scaling architecture, ground current is a very low 75 μA when driving a 100 μA load, making the ADP1712/ ADP1713/ADP1714 ideal for battery-operated portable equipment.

The ADP1712/ADP1713/ADP1714 are available in 16 fixed output voltage options. The ADP1712 is also available in an adjustable version, which allows output voltages that range from 0.8 V to 5 V via an external divider. The ADP1712 fixed version allows an external capacitor to be connected to program the soft-start time. The ADP1713 allows a reference bypass capacitor to be connected, which reduces output voltage noise and improves power supply rejection. The ADP1714 includes a tracking feature, which allows the output to follow an external voltage rail or reference.

The ADP1712/ADP1713/ADP1714 are optimized for stable operation with small 2.2 μF ceramic output capacitors, allowing good transient performance while occupying minimal board space. An enable pin controls the output voltage on all devices, and an undervoltage lockout circuit disables the regulator if IN drops below a minimum threshold. The parts also have short circuit protection and thermal overload protection, which prevent damage to the devices in adverse conditions.

Applications

  • Mobile phones
  • Digital camera and audio devices
  • Portable and battery-powered equipment
  • Post dc-dc regulation

FEATURES and BENEFITS

  • Maximum output current: 300 mA
  • Input voltage range: 2.5 V to 5.5 V
  • Light load efficient
    IGND = 75 μA with 100 μA load
  • Low shutdown current: <1 μA
  • Very low dropout voltage: 170 mV @ 300 mA load
  • Initial accuracy: ±1%
  • Accuracy over line, load, and temperature: ±2%
  • 16 fixed output voltage options with soft start:
    0.75 V to 3.3 V
  • Adjustable output voltage option: 0.8 V to 5.0 V
  • Low output noise: 40 μV rms
  • High PSRR: 72 dB @ 1 kHz
  • See data sheet for additional features

ADP1712 Typical Application Circuit Diagram

OF NOTE ...

Documentation

Title Content Type File Type
ADP1712/ADP1713/ADP1714: 300 mA, Low Dropout CMOS Linear Regulator Data Sheet (Rev A, 06/2009) (pdf, 529 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
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
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, 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
ADI Linear Regulator Design Tool and Parametric Search  (zip)
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
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

ADP1712 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP1712AUJZ-0.75R7 Status: Last Time Buy 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN/PDN Purchase Sample
ADP1712AUJZ-0.8-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-0.85R7 Status: Last Time Buy 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN/PDN Purchase
ADP1712AUJZ-0.9-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-0.95R7 Status: Last Time Buy 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN/PDN Contact ADI
ADP1712AUJZ-1.0-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase
ADP1712AUJZ-1.05R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-1.1-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-1.15R7 Status: Last Time Buy 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN/PDN Purchase
ADP1712AUJZ-1.2-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-1.3-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-1.5-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase
ADP1712AUJZ-1.8-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-2.5-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-3.0-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-3.3-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 Y  Material Info PCN Purchase Sample
ADP1712AUJZ-R7 Status: Production 5 ld TSOT 5 Ind Reel, 3000 - $0.47 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.

ADP1712 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP1712-3.3-EVALZ Status: Production Evaluation Board $60.72 Yes -
ADP1712-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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