MAXM17503

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4.5V-60V, 2.5A High-Efficiency, DC-DC Step-Down Power Module with Integrated Inductor

Highly Integrated DC-DC Power Module Enables Ease of Design and Small-Solution Footprint

Data Sheet (Rev. 3) Product Selection Table
Part Models
2
1ku List Price
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Part Details

  • Reduces Design Complexity, Manufacturing Risks, and Time-to-Market
    • Integrated Switching Power Supply Controller and Dual-MOSFET Power Switches
    • Integrated Inductor
    • Integrated Compensation Components
  • Saves Board Space in Space-Constrained Applications
    • Complete Integrated Step-Down Power Supply in a Single Package
    • Small Profile 9mm x 15mm x 2.8mm SiP Package
    • Simplified PCB Design with Minimal External BOM Components
  • Offers Flexibility for Power-Design Optimization
    • Wide Input Voltage Range from 4.5V to 60V
    • Output-Voltage Adjustable Range from 0.9V to 12V
    • Adjustable Frequency with External Frequency Synchronization (100kHz to 1.8MHz)
    • Soft-Start Programmable
    • Autoswitch PWM, PFM, or DCM Current Mode Control
    • Optional Programmable EN/UVLO
  • Operates Reliably in Adverse Industrial Environments
    • Integrated Thermal Fault Protection
    • Hiccup Mode Overload Protection
    • Active-Low RESET Output-Voltage Monitoring
    • Wide Industrial Ambient Operating Temperature Range (-40°C to +125°C)/ Junction Temperature Range (-40°C to +150°C)
    • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions
MAXM17503
4.5V-60V, 2.5A High-Efficiency, DC-DC Step-Down Power Module with Integrated Inductor
MAXM17503: Typical Application Circuit
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Application Note 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

MAXM17503EVKIT

Evaluation Kit for MAXM17503

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Features and Benefits

  • Highly Integrated Solution with Integrated Shield Inductor
  • Wide 11V to 60V Input Range
  • Preset 5V Output with a Fixed Resistor-Divider on the Feedback Pin (FB)
  • Programmable Output Voltage Feature (0.9V to 12V)
  • Up to 2.5A Output Current
  • High 93% Efficiency (VIN = 12V, VOUT = 5V at 1.0A)
  • 500kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • Selectable PWM, PFM, or DCM Mode
  • Open-Drain Active-Low RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Low-Profile, Surface-Mount Components
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested
  • Proven PCB Layout

Product Details

The MAXM17503 evaluation kit (EV kit) is a demonstration circuit of the MAXM17503 high-voltage, high-efficiency, current-mode scheme, synchronous step-down DC-DC switching power module. The EV kit is designed for a 5V output and delivers up to a 2.5A load current from a wide input voltage range of 11V to 60V. The EV kit switches at an optimal 500kHz switching frequency to allow the use of small component sizes, helping to minimize solution size while maintaining high-performance. The EV kit provides a precision-enable input, an open-drain active-low RESET output signal, and external frequency synchronization to provide a simple and reliable startup sequence and eliminate beat frequency between regulators. The EV kit also includes optional component footprints to program different output voltages, an adjustable input undervoltage-lockout, and a soft-start time to control inrush current during startup. The MAXM17503 IC data sheet provides a complete description of the part that should be read in conjunction with this data sheet prior to modifying the demo circuit.

Applications

  • Base Station Point-of-Load Regulator
  • Distributed Supply Regulation
  • FPGA and DSP Point-of-Load Regulator
  • HVAC and Building Control
  • Industrial Power Supplies
MAXM17503EVKIT
Evaluation Kit for MAXM17503

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