1. Products
  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Internal Power Switch Buck Regulators
  6. MAX5083


Overview

Features and Benefits

  • 4.5V to 40V (MAX5082) or 7.5V to 40V (MAX5083) Input Voltage Range
  • 1.5A Output Current
  • VOUT Range From 1.23V to 32V
  • Internal High-Side Switch
  • Fixed 250kHz Internal Oscillator
  • Automatic Switchover to Pulse-Skip Mode at Light Loads
  • External Frequency Synchronization
  • Thermal Shutdown and Short-Circuit Protection
  • Operates Over the -40°C to +125°C Temperature Range
  • Space-Saving (5mm x 5mm) High-Power 16-Pin TQFN Package
  • Product Details

    The MAX5082/MAX5083 are 250kHz PWM step-down DC-DC converters with an on-chip, 0.3Ω high-side switch. The input voltage range is 4.5V to 40V for the MAX5082 and 7.5V to 40V for the MAX5083. The output is adjustable from 1.23V to 32V and can deliver up to 1.5A of load current.

    Both devices utilize a voltage-mode control scheme for good noise immunity in the high-voltage switching environment and offer external compensation allowing for maximum flexibility with a wide selection of inductor values and capacitor types. The switching frequency is internally fixed at 250kHz and can be synchronized to an external clock signal through the SYNC input. Light load efficiency is improved by automatically switching to a pulse-skip mode.

    All devices include programmable undervoltage lockout and soft-start. Protection features include cycle-by-cycle current limit, hiccup-mode output short-circuit protection, and thermal shutdown. Both devices are available in a space-saving, high-power (2.7W), 16-pin TQFN package and are rated for operation over the -40°C to +125°C temperature range.

    Applications

    • Distributed Power
    • FireWire® Power Supplies
    • Industrial

    Product Lifecycle icon-recommended Production

    At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

    Product Recommendations

    MAX5083 Companion Parts

    Recommended Related Parts

    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
    MAX5083ATE+ Material Declaration Reliability Data 16-LFCSP-5X5X0.75
    MAX5083ATE+T Material Declaration Reliability Data 16-LFCSP-5X5X0.75
    Wafer Fabrication Data MAX5083 Reliability Data

    Sample & Buy


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