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MAX20059

MAX20059

72V, 1A, Automotive Synchronous Step-Down DC-DC Converter

72V Synchronous Buck Converter with Internal FETs Enables High Efficiency and Low Temperature Rise

Data Sheet
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Overview

Description

The MAX20059 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter IC with integrated MOSFETs that operates over a 4.5V to 72V input. The converters can deliver up to 1A current. Output voltage is programmable from 0.8V to 90%VIN. The feedback voltage-regulation accuracy over -40°C to +125°C is ±1.5%.

The IC features a peak-current-mode-control architecture and can be operated in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes.

The MAX20059 is available in a 12-pin (3mm x 3mm) side-wettable TDFN package with an exposed pad for thermal heat dissipation.

Key Features

  • Synchronous DC-DC Converters with Integrated FETs
    • 72V Input for 48V Systems
    • Internal Compensation
  • Flexibility
    • Output Adjustable from 0.8V to 90%VIN
    • 200kHz to 2200kHz Adjustable Frequency with External Clock Synchronization
    • Programmable Peak Current Limit (1.14A or 1.6A)
  • Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • Programmable EN/UVLO Threshold
    • Adjustable Soft-Start and Prebiased Power-Up
    • Thermal Shutdown
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified

Applications/Uses

  • 48V Systems
  • Mild Hybrid Applications

Design Resources


MAX20059EVKIT: Evaluation Kit for the MAX20059

Quality and Environmental Data

Request Reliability Report for: MAX20059 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • EE-Sim: Design & Simulate MAX20059

    • CAD Symbols and Footprints

  • MAX20059ATCA/VY+
    •

    Quality And Environmental

    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

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    Tools & Models

    Reference Designs

    Type ID Title
    Evaluation Board10266MAX20059EVKIT Evaluation Kit for the MAX20059