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  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Internal Power Switch Buck Regulators
  6. MAX15108A

Data Sheet Rev. 2
PDF
EE-Sim Design & Simulation
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Overview

Features and Benefits

  • Continuous 8A Output Current
  • Efficiency Up to 96%
  • ±1% Accuracy Over Load, Line, and Temperature
  • Operates from a 2.7V to 5.5V Supply
  • Adjustable Output from 0.6V to 0.95 x VIN
  • Programmable Soft-Start
  • Safe Startup into Prebiased Output
  • External Reference Input
  • 1MHz Switching Frequency
  • Stable with Low-ESR Ceramic Output Capacitors
  • Forced PWM Mode
  • Enable Input and Power-Good Output for Power-Supply Sequencing
  • Cycle-by-Cycle Overcurrent Protection
  • Fully Protected Features Against Overcurrent and Overtemperature
  • Input Undervoltage Lockout
  • 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package

Product Details

The MAX15108A high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches delivers up to 8A of output current. The regulator operates from 2.7V to 5.5V and provides an output voltage from 0.6V up to 95% of the input voltage, making the device ideal for distributed power systems, portable devices, and preregulation applications.

The IC utilizes a current-mode control architecture with a high gain transconductance error amplifier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients.

The low RDS(ON) integrated switches ensure high efficiency at heavy loads while minimizing critical inductance, making the layout design a much simpler task with respect to discrete solutions. The IC’s simple layout and footprint assures first-pass success in new designs.

The regulator features a 1MHz, factory-trimmed fixed-frequency PWM mode operation. The high switching frequency, along with the PWM current-mode architecture allows for a compact, all ceramic capacitor design.

The IC features a capacitor-programmable soft-start to reduce input inrush current. Internal control circuitry ensures safe-startup into a prebiased output. Power sequencing is controlled with the enable input and power-good output.

The IC is available in a 20-bump (4 x 5 array), 2.5mm × 2mm, WLP package and is fully specified over the -40°C to +105°C temperature range.

Applications

  • Base Stations
  • DDR Memory
  • Distributed Power Systems
  • Notebook Power
  • Portable Devices
  • Server Power

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Evaluation Kits (1)

Documentation & Resources

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    Tools & Simulations

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    MAX15108A SIMPLIS Schematic

    MAX15108A SIMPLIS Schematic

    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
    MAX15108AEWP+ Material Declaration Reliability Data Wafer-Level Package 4x5 Bump, Full Array
    MAX15108AEWP+T Material Declaration Reliability Data Wafer-Level Package 4x5 Bump, Full Array
    Wafer Fabrication Data

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