ADP5135
Info : RECOMMENDED FOR NEW DESIGNS
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ADP5135

Triple 1800 mA Buck Regulators With Precision Enables and Power Good Outputs

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 1
1ku List Price Starting From $2.93
Features
  • 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
Additional Details
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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
Part Models 1
1ku List Price Starting From $2.93

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP5135ACPZ-R7
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADP5135

ADP5135 Evaluation Board

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EVAL-ADP5135

ADP5135 Evaluation Board

ADP5135 Evaluation Board

Features and Benefits

  • Full featured evaluation board for the ADP5135
  • Standalone capability
  • Simple device measurements, including line and load regulation, demonstrable with
    A single voltage supply
    A voltmeter
    An ammeter
    Load resistors
  • Easy access to external components
  • Dedicated precision enable on each channel for easier power sequencing
  • Factory programmable soft start options
  • Factory programmable UVLO options Dedicated power-good pins for monitoring
  • Mode option to change bucks from PFM to PWM operation

Product Detail

The user guide describes the hardware for the evaluation of the ADP5135 micropower management unit (micro PMU), and includes detailed schematics and printed circuit board (PCB) layouts. The ADP5135 is available in a 24-lead, 4 mm × 4 mm LFCSP.

The ADP5135CP-EVALZ LFCSP evaluation board has three step-down regulators that enable evaluation of the ADP5135. The evaluation board is available with an adjustable voltage option.

Full details specifications for the ADP5135 are available in the ADP5135 data sheet, which should be consulted in conjunction with the user guide when using the evaluation board.

Tools & Simulations

Tools & Simulations 1

Reference Designs

Reference Designs 1

Portable Radio Reference Design Block Diagram

ADRV-PACKRF Robust Portable Radio Design

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CN0412

ADRV-PACKRF Robust Portable Radio Design

CN0412

Circuits from the lab

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ADRV-PACKRF Robust Portable Radio Design

Features and Benefits

  • Two Complete Radios
    • 2-Tx, 2-Rx, 2-Observation
  • Multiple Power Options
    • Wall Connected, Power over Ethernet, Battery
  • Built in IMU and GPS for tracking
  • Fully configurable and customizable software
View Detailed Reference Design external link

Design & Integration Tools

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