1. Products
  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Multiple Output Buck Regulators
  6. ADP5135


Overview

Features and Benefits

  • Main input voltage range: 3.0 V to 5.5 V
  • Three 1800 mA buck regulators
  • 24-lead, 4 mm × 4 mm LFCSP package
  • Regulator accuracy: ±1.8%
  • Factory programmable or external adjustable VOUTx
  • Precision Enables for easier power sequencing
  • Power Good Pins for monitoring of each regulator
  • 3 MHz buck operation with forced PWM and auto PWM/PSM modes
  • BUCK1/BUCK2/BUCK3: output voltage range from 0.8 V to 3.8 V

Product Details

The ADP5135 combines three high performance buck regulators. It is available in a 24-lead 4 mm × 4 mm LFCSP.

The high switching frequency of the buck regulators enables tiny multilayer external components and minimizes the board space. When the MODE pin is set to high, the buck regulators operate in forced PWM mode. When the MODE pin is set to low, the buck regulators operate in PWM mode only when the load is above a predefined threshold. When the load current falls below this predefined threshold, the regulator operates in power save mode (PSM), improving the light load efficiency.

Buck1 and Buck2 operate in sync and Buck3 operates out of phase to reduce the input capacitor requirement. Regulators in the ADP5135 are activated through dedicated enable pins. The default output voltages can be externally set in the adjustable version, or factory programmable to a wide range of preset values in the fixed voltage version.

Applications

  • Power for processors, ASICS, FPGAs, and RF chipsets
  • Portable instrumentation and medical devices
  • Space constrained devices

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations

Design Tools

5V uPMU BuckDesigner

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

Reference Designs (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
ADP5135ACPZ-R7 Material Declaration Reliability Data 24-Lead LFCSP (4mm x 4mm w/ EP)
Wafer Fabrication Data

Sample & Buy


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Buy Now Pricing


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List Pricing


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Lead Times


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Sampling


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Price Table Help

 

Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

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.