MAX17558

PRODUCTION

60V, Dual-Output, Synchronous Step-Down Controller

Wide Input Voltage Dual-Output Controller Enables Design Flexibility for Industrial Applications

Part Models
2
1ku List Price
Starting From $4.19
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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
    • Selectable In-Phase or 180° Out-of-Phase Operation
    • Adjustable 100kHz to 2.2MHz Switching Frequency
    • Independent Enable and PGOOD
    • Available in a Lead(Pb)-Free 32-Pin, 5mm x 5mm 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
    • Independent Adjustable Soft-Start or Tracking
    • Current Foldback Limits MOSFET Heat Dissipation During a Short-Circuit Condition
    • Operates Over the -40°C to +125°C Temperature Range
    • Output Overvoltage and Overtemperature Protections
MAX17558
60V, Dual-Output, Synchronous Step-Down Controller
MAX17558: Block Diagram
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Documentation

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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

MAX17558EVKIT

Evaluation Kit for MAX17558

Features and Benefits

  • 6V to 60V Input Range
  • Output Rails: VOUT1: 5V/5A, VOUT2: 3.3V/10A
  • 350kHz Switching Frequency
  • Independent Enable Inputs
  • Independent Adjustable Soft-Start Time
  • Configurable Tracking Operation
  • Selectable PWM/DCM Modes of Operation
  • Selectable 180° Out-of-Phase/0° In-Phase Operation
  • Selectable Current-Limit Threshold
  • Independent PGOOD Outputs
  • Overcurrent, Overvoltage, and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17558 EV kit provides a proven design to evaluate the MAX17558 wide 4.5V to 60V input, dual-output, synchronous step-down DC-DC controller. The EV kit provides 5V/5A and 3.3V/10A at the outputs from a 6V to 60V input supply. The switching frequency of the EV kit is preset to 350kHz for optimal efficiency and component size. The EV kit features adjustable input undervoltage-lockout and soft-start time, selectable PWM/DCM modes, 180° out-of-phase/0° in-phase operation, current-limit threshold, and independent open-drain PGOOD signals.

Applications

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

MAX17558DPEVKIT

Evaluation Kit for the MAX17558

Features and Benefits

  • 6V to 54V Input Range
  • Output Rails: VOUT: 3.3V/20A
  • 350kHz Switching Frequency
  • Independent Enable Inputs
  • Independent Adjustable Soft-Start Time
  • Configurable Tracking Operation
  • Selectable PWM/DCM Modes of Operation
  • Selectable 180° Out-of-Phase/0° In-Phase Operation
  • Selectable Current-Limit Threshold
  • Independent PGOOD Outputs
  • Overcurrent, Overvoltage, and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17558 dual-phase EV kit provides a proven design to evaluate the MAX17558 wide 4.5V to 60V input, dual-phase, synchronous step-down DC-DC controller. In 2-phase operation, the two channels of the MAX17558 are operated 180° out of phase. This interleaves the current pulses drawn by the 2 phases, and results in reduced total RMS input current, which allows use of lesser number of input capacitors. The EV kit provides 3.3V/20A at the outputs from a 6V to 54V input supply. The switching frequency of the EV kit is preset to 350kHz for optimal efficiency and component size. The EV kit features adjustable input undervoltage-lockout and soft-start time, selectable PWM/DCM modes, 180° out-of-phase/0° inphase operation, current-limit threshold, and independent open-drain PGOOD signals.

Applications

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

MAX17558EVKIT
Evaluation Kit for MAX17558
MAX17558DPEVKIT
Evaluation Kit for the MAX17558

Reference Designs

MAXREFDES1202
MAXREFDES1202 Circuits from the lab

Dual-Phase Buck Converter with Inductor DCR Current Sensing Using the MAX17558

Features and Benefits

  • Very High Efficiency > 95% at Full Load
  • Very Low Line Regulation < 0.1% and Very Low Load Regulation < 0.25%
  • Inductor DCR Current Sensing
  • Output-Voltage Ripple < 0.5% at VIN (nom)
  • Overshoot < 3% for 50% Step Load
MAXREFDES1202
Dual-Phase Buck Converter with Inductor DCR Current Sensing Using the MAX17558
MAXREFDES1202

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