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ADP7104:  20 V, 500 mA, Low Noise, CMOS LDO

Product Details

Product Status:Recommended for New Designs

The ADP7104 is a CMOS, low dropout linear regulator that operates from 3.3 V to 20 V and provides up to 500 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 19 V to 1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection, low noise, and achieves excellent line and load transient response with just a small 1 μF ceramic output capacitor.

The ADP7104 is available in seven fixed output voltage options and an adjustable version, which allows output voltages that range from 1.22 V to VIN − VDO via an external feedback divider.

The ADP7104 output noise voltage is 15 μV rms and is independent of the output voltage. A digital power-good output allows power system monitors to check the health of the output voltage. A user programmable precision undervoltage lockout function facilitates sequencing of multiple power supplies.

The ADP7104 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages. The LFCSP offers a very compact solution and also provides excellent thermal performance for applications requiring up to 500 mA of output current in a small, low-profile footprint.

APPLICATIONS

  • Regulation to noise sensitive applications:
    ADC, DAC circuits, precision amplifiers, high frequency oscillators, clocks and PLLs
  • Communications and Infrastructure
  • Medical and Healthcare
  • Industrial and Instrumentation

FEATURES and BENEFITS

  • Input voltage range:
    3.3 V to 20 V
  • Maximum output current:
    500 mA
  • Low Noise: 15 μVRMS for fixed output versions
  • PSRR Performance of 60 dB @ 10 kHz at VOUT=3.3 V
  • Reverse current protection
  • Low dropout voltage:
    200 mV at 500 mA
  • Initial accuracy: ±0.8%
  • See data sheet for additional features

Typical Application Circuit Diagram for ADP7104

Documentation

Title Content Type File Type
ADP7104: 20 V, 500 mA, Low Noise, CMOS LDO Data Sheet (Rev G, 05/2014) (pdf, 765 kB) Data Sheets PDF
CN0343: Ultrasonic Distance Measurement  (pdf, 350 kB) Circuit Note PDF
CN0276: High Performance, 10-Bit to 16-Bit Resolver-to-Digital Converter  (pdf, 531 kB) Circuit Note PDF
CN0280: Robust Completely Isolated Current Sense Circuit with Isolated Power Supply for Solar Photovoltaic Converters  (pdf, 468 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
UG-265: RedyKits for the ADP7104 Low Dropout (LDO) Linear Regulator  (pdf, 1533 kB) User Guides PDF
UG-218: User Guide for the ADP7102/ADP7104 Evaluation Board  (pdf, 532 kB) User Guides PDF
Analog Devices’ 256-Channel, 16-Bit Digital X-Ray Analog Front End Delivers Industry’s Best Combination of Noise, Power and Image Quality (27 Nov 2012) Press Releases HTML
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
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

ADP7104 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP7104ACPZ-1.5-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ACPZ-1.8-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ACPZ-2.5-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ACPZ-3.0-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ACPZ-3.3-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ACPZ-5.0-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ACPZ-9.0-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ACPZ-R7 Status: Production 8 ld LFCSP (3x3mm 1.74x2.38 EP) 8 Ind Reel, 1500 - $1.67 Y  Material Info PCN Purchase Sample
ADP7104ARDZ-1.5-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 Y  Material Info Notify Me Purchase Sample
ADP7104ARDZ-1.8-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 Y  Material Info Notify Me Purchase Sample
ADP7104ARDZ-2.5-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 Y  Material Info Notify Me Purchase Sample
ADP7104ARDZ-3.0-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 Y  Material Info Notify Me Purchase Sample
ADP7104ARDZ-3.3-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 Y  Material Info Notify Me Purchase Sample
ADP7104ARDZ-5.0-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 Y  Material Info Notify Me Purchase Sample
ADP7104ARDZ-9.0-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 Y  Material Info Notify Me Purchase Sample
ADP7104ARDZ-R7 Status: Production 8 ld SOIC-EP 8 Ind Reel, 1000 - $1.82 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.

ADP7104 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADP7104CPZ-REDYKIT Status: Production ADP7104 REDYKIT LFCSP - Yes -
ADP7104RDZ-REDYKIT Status: Production ADP7104 REDYKIT SOIC - Yes -
ADP7104CP-EVALZ Status: Production ADP7104 Evaluation Board LFCSP - Yes -
ADP7104RD-EVALZ Status: Production ADP7104 Evaluation Board SOIC - 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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