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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

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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

Parametric Specs

Part NumberVIN
(V)		VIN
(V)		VOUT1
(V)		VOUT1
(V)		Output Adjust. MethodIOUT1
(A)		Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)		Design ToolsPackage/Pins
minmaxminmax
MAX20059 NEW!4.5760.818Resistor1InternalYesYes1
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2200
EE-Sim
TDFN/12
See All Step-Down Switching Regulators (389)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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

    • 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