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ADP3301:  High Accuracy anyCAP® 100 mA Low Dropout Linear Regulator

Product Details


Newer Alternatives:
  • ADP1720 50 mA, High Voltage, Micropower Linear Regulator
  • ADP7102 20 V, 300 mA, Low Noise, CMOS LDO

The ADP3301 is a member of the ADP330x family of precision low dropout anyCAP® voltage regulators. The ADP3301 stands out from the conventional LDOs with a novel architecture, an enhanced process and a new package. Its patented design includes a noninverting wideband driver and a stage that permits the use of an internal “pole splitting” capacitor to stabilize the feedback loop with a single output capacitor as small as 0.47 µF. This device is stable with any type of capacitor regardless of its ESR (Equivalent Serial Resistance) value, including ceramic types (MLCC) for space restricted applications. The ADP3301 achieves exceptional accuracy of ±0.8% at room temperature and ±1.4% overall accuracy over temperature, line and load regulations. The dropout voltage of the ADP3301 is only 100 mV (typical) at 100 mA.

In addition to the new architecture and process, ADI’s new proprietary thermally enhanced package (Thermal Coastline) can handle 1 W of power dissipation without external heat sink or large copper surface on the PC board. This keeps PC board real estate to a minimum and makes the ADP3301 very attractive for use in portable equipment.

The ADP3301 operates with a wide input voltage range from 3 V to 12 V and delivers a load current in excess of 100 mA. It features an error flag that signals when the device is about to lose regulation or when the short circuit or thermal overload protection is activated. Other features include shutdown and optional noise reduction capabilities. The ADP330x anyCAP®* LDO family offers a wide range of output voltages and output current levels from 50 mA to 200 mA:

ADP3300 (50 mA, SOT-23)
ADP3303 (200 mA)

FEATURES and BENEFITS

  • High Accuracy (Over Line and Load Regulations at +25°C): ±0.8%
  • Ultralow Dropout Voltage: 100 mV Typical @ 100 mA
  • Requires Only CO = 0.47 µF for Stability
  • anyCAP™* = Stable with All Types of Capacitors
  • Current and Thermal Limiting
  • Low Noise
  • Dropout Detector
  • Low Shutdown Current: 1 µA
  • Several Fixed Voltage Options
  • 3.0 V to 12 V Supply Range
  • –20°C to +85°C Ambient Temperature Range
  • Thermally Enhanced SO-8 Package
  • Excellent Line and Load Regulations

Functional Block Diagram for ADP3301

Documentation

Title Content Type File Type
ADP3301: High Accuracy anyCAP™* (*anyCAP is a trademark of Analog Devices Inc.) 100 mA Low Dropout Linear Regulator Data Sheet (Rev A, 02/2014) (pdf, 125 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
AN-262: Low-Noise Low Drop-Out Regulator for Portable Equipment  (pdf, 341 kB) Application Notes PDF
CN-0216: Precision Weigh Scale Design Using the AD7791 24-Bit Sigma-Delta ADC with External ADA4528-1 Zero-Drift Amplifiers  (pdf, 596 kB) Circuit Note PDF
The Fundamentals of LDO Design and Applications Technical Articles HTML
Voltage Regulators for Power Management
(Analog Dialogue, Vol. 30, No. 4, 1996)
Analog Dialogue HTML
Linear Regulators Parametric Search Product Selection Guide HTML
RAQs index Rarely Asked Questions HTML
What are LDOs and how are they used? FAQs/RAQs 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.

Product Recommendations & Reference Designs

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Price, packaging, availability

ADP3301 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP3301AR-2.7 Status: Obsolete 8 ld SOIC 8 Ind Tube, 98 - - N  Material Info Notify Me Contact ADI
ADP3301AR-2.7-REEL Status: Obsolete 8 ld SOIC 8 Ind Reel, 2500 - - N  Material Info Notify Me Contact ADI
ADP3301AR-3 Status: Obsolete 8 ld SOIC 8 Ind Tube, 98 - - N  Material Info Notify Me Contact ADI
ADP3301AR-3-REEL Status: Obsolete 8 ld SOIC 8 Ind Reel, 2500 - - N  Material Info Notify Me Contact ADI
ADP3301AR-3.2 Status: Obsolete 8 ld SOIC 8 Ind Tube, 98 - - N  Material Info Notify Me Contact ADI
ADP3301AR-3.2-REEL Status: Obsolete 8 ld SOIC 8 Ind Reel, 2500 - - N  Material Info Notify Me Contact ADI
ADP3301AR-5-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 $1.41 $1.31 N  Material Info PCN Purchase
ADP3301ARZ-2.7 Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.15 $1.09 Y  Material Info PCN Purchase Sample
ADP3301ARZ-3 Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.15 $1.09 Y  Material Info PCN Purchase Sample
ADP3301ARZ-3-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.09 Y  Material Info PCN Purchase
ADP3301ARZ-3.2 Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.12 $1.06 Y  Material Info PCN Purchase
ADP3301ARZ-3.3 Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.15 $1.09 Y  Material Info PCN Purchase Sample
ADP3301ARZ-3.3-RL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.09 Y  Material Info PCN Purchase
ADP3301ARZ-5 Status: Production 8 ld SOIC 8 Ind Tube, 98 $1.15 $1.09 Y  Material Info PCN Purchase Sample
ADP3301ARZ-5-REEL Status: Production 8 ld SOIC 8 Ind Reel, 2500 - $1.09 Y  Material Info PCN 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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