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ADP5022:  Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO

Product Details

The ADP5022 is a micro power management unit (micro PMU) that combines two high performance buck regulators and a low dropout regulator (LDO) in a tiny 16-ball 2.08 mm × 2.08 mm WLCSP to meet demanding performance and board space requirements.

The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space required. When the MODE pin is set high, the buck regulators operate in forced PWM mode. When the MODE pin is set low, the buck regulators automatically switch operating modes depending on the load current level. At higher output loads, the buck regulators operate in PWM mode. When the load current falls below a predefined threshold, the regulators operate in power save mode (PSM), improving the light-load efficiency.

The two bucks operate out-of-phase to reduce the input capacitor requirement and noise.

The low quiescent current, low dropout voltage, and wide input voltage range of the ADP5022 LDO extends the battery life of portable devices. The LDO maintains power supply rejection greater than 60 dB for frequencies as high as 10 kHz while operating with a low headroom voltage.

Each regulator in the ADP5022 has a dedicated, independent enable pin. A high voltage level applied to the enable pin activates the respective regulator. The default output voltages are factory programmable and can be set to a wide range of options.


  • Chinese data sheet available
  • Input voltage range: 2.4 V to 5.5 V
  • Tiny 16-ball, 2 mm × 2 mm WLCSP package
  • Overcurrent and thermal protection
  • Soft start
  • Factory programmable undervoltage lockout on VDDA system supply of either 2.2 V or 3.9 V
  • Factory programmable default output voltages for all 3 channels
  • Buck1 and Buck2 key specifications
    Current mode architecture for excellent transient response
    3 MHz operating frequency
    See data sheet for additional details
  • LDO key specifications
    Stable with 1 μF ceramic output capacitors
    High PSRR
    60 dB up to 10 KHz
    Low output noise
    See data sheet for additional details

ADP5022 Typical Application Circuit


Title Content Type File Type
ADP5022: Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO Data Sheet (Rev C, 10/2010) (pdf, 676 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
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-014: Evaluation Board for the ADP5022 Micro PMU  (pdf, 585 kB) User Guides PDF
Integrated Power Solutions for Xilinx FPGAs  (pdf, 2253 kB)
Combining multiple switching regulators and LDOs into a single package enables very small, flexible, highly efficient power management solutions for powering FPGAs.
Solutions Bulletins PDF
Integrated Power Solutions for Altera FPGAs  (pdf, 2460 kB) Solutions Bulletins 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
ADP150 Regulator Fixed Voltage Linux Driver Device Drivers 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

ADP5022 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADP5022ACBZ-1-R7 Status: Production 16 Ball WLCSP(2.08X2.08) 16 Ind Reel, 3000 - $1.80 Y  Material Info PCN Purchase Sample
ADP5022ACBZ-2-R7 Status: Production 16 Ball WLCSP(2.08X2.08) 16 Ind Reel, 3000 - $1.80 Y  Material Info PCN Purchase Sample
ADP5022ACBZ-4-R7 Status: Production 16 Ball WLCSP(2.08X2.08) 16 Ind Reel, 3000 - $1.80 Y  Material Info PCN Purchase Sample
ADP5022ACBZ-6-R7 Status: Production 16 Ball WLCSP(2.08X2.08) 16 Ind Reel, 3000 - $1.80 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.

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