MAX17557

PRODUCTION

4.5V to 60V, Synchronous Step-Down Controller

Wide Input Voltage Synchronous Controller Enables Design Flexibility for Industrial Applications

Data Sheet (Rev. 2) Product Selection Table
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Part Details

  • Wide Range of Operation
    • Wide 4.5V to 60V Input Voltage Range
    • Wide 0.8V to 24V Output Voltage Range
    • RSENSE or Inductor DCR Current-Sensing
    • 100kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
    • Available in a Lead (Pb)-Free 20-Pin, 4mm x 4mm TQFN-EP Package
  • Enhances Power Efficiency
    • Low-Impedance Gate Drives for High Efficiency
    • DCM Operation at Light Loads
    • Auxiliary Bootstrap LDO
  • Operates Reliably in Adverse Industrial Environments
    • Programmable Soft-Stop Enable or Disable Function
    • Adjustable Soft-Start
    • Current Foldback Limits MOSFET Heat Dissipation During a Short-Circuit Condition
    • Overtemperature Protection
    • High Industrial Ambient Operating Temperature Range (-40°C to +125°C) and Junction Tempera- ture Range (-40°C to +150°C)
MAX17557
4.5V to 60V, Synchronous Step-Down Controller
MAX17557: Functional (or Block) Diagram
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Documentation

Data Sheet 1

Reliability Data 1

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Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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SIMPLIS Models 1

Evaluation Kits

MAX17557EVKITE

Evaluation Kit for the MAX17557 in 5V Output-Voltage Application

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Features and Benefits

  • Operates from a 6.5V to 48V Input Supply
  • 5V Output Voltage
  • Up to 10A Output Current
  • 350kHz Switching Frequency
  • Enable/Disable Input, Resistor-Programmable UVLO Threshold
  • MODE Selection Jumper to Select Between PWM and DCM Modes
  • Capacitor Programmable Soft-Start Time
  • External Clock Synchronization Input
  • Jumper Programmable Soft-Stop Enable or Disable Functionality
  • Open-Drain PGOOD Output
  • Overcurrent Protection Mode Selection Jumper
  • Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR32(EN55032) Class B Conducted and Radiated Emissions

Product Details

The MAX17557EVKITE# evaluation kit (EV kit) provides a proven design to evaluate the MAX17557 high-efficiency, high-voltage, Himalaya synchronous step-down DC-DC controller. The EV kit is preset to generate 5V output at load currents up to 10A from a 6.5V to 48V input supply. The EV kit features a 350kHz switching frequency for optimum efficiency and component size. The EV kit features PCB pads for enable/disable functionality, opendrain power-good (PGOOD) output, and external clock synchronization (MODE/SYNC). The EV kit also provides a good layout example, which is optimized for conducted, radiated EMI, and thermal performance. For more details about the device, refer to the MAX17557 IC data sheet’s Benefits and Features section.

Applications

  • Computerized Numerical Control
  • Distributed DC Power Systems
  • Industrial Power Supplies
  • Motion Control
  • Programmable Logic Controllers

MAX17557EVKIT

Evaluation Kit for the MAX17557 5V Output-Voltage Application

Buy Now View Details

Features and Benefits

  • Operates from a 6.5V to 60V Input Supply
  • 5V Output Voltage
  • Up to 10A Output Current
  • 350kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM/DCM Modes of Operation
  • Adjustable Soft-Start Time
  • Programmable Soft-Stop Enable or Disable Function
  • Open-Drain PGOOD Output
  • Overcurrent (OCP) and Overtemperature (OTP) Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17557 5V-output evaluation kit (EV kit) provides a proven design to evaluate the MAX17557 high-voltage, high-efficiency, synchronous step-down DC-DC controller. The EV kit provides 5V/10A at the output from a 6.5V to 60V input supply. The switching frequency of the EV kit is preset to 350kHz for optimum efficiency and component size. The EV kit features Enable/UVLO Input, selectable PWM/DCM modes, resistor-programmable UVLO threshold, adjustable soft-start time, open-drain PGOOD output, and overcurrent and overtemperature protection.

Applications

  • Distributed Supply Regulation
  • General-Purpose Point of Load
  • Industrial Control Power Supplies
  • Motion Control and CNC Power Supply
MAX17557EVKITE
Evaluation Kit for the MAX17557 in 5V Output-Voltage Application
MAX17557EVKIT
Evaluation Kit for the MAX17557 5V Output-Voltage Application

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