MAX17573

PRODUCTION

4.5V to 60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

A High-Efficiency, High-Voltage, Synchronous Step-Down DC-DC Converter with Integrated MOSFETs

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • Reduces External Components and Total Cost
    • No Schottky-Synchronous Operation
    • Internal Loop Compensation
    • All-Ceramic Capacitors, Compact Layout
  • Reduces Power Dissipation
    • Peak Efficiency of 95.4% at VIN = 12V, VOUT = 5V at 500kHz Switching Frequency
    • Pin-to-Pin Compatible with MAX17574, and Improved Efficiency through Superior Switching Performance compared to MAX17574
    • PFM and DCM Modes Enable Enhanced LightLoad Efficiency
    • Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
    • 2.8μA Shutdown Current
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 60V Input
    • Adjustable Output Voltage Range from 0.9V up to 90% of VIN
    • 100kHz to 2.2MHz Adjustable Frequency with External Clock Synchronization
  • Operates Reliably in Adverse Industrial Environments
    • Built-in Hiccup Mode Overload Protection
    • Built-In Output-Voltage Monitoring with RESET
    • Programmable EN/UVLO Threshold
    • Adjustable and Monotonic Startup with Prebiased
    • Overtemperature Protection
MAX17573
4.5V to 60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
MAX17573 Circuit Diagram
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Documentation

Data Sheet 1

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Software Resources

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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

MAX17573EVKITA

Evaluation Kit for the MAX17573 in 5V and 3.3V Output- Voltage Applications

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Features and Benefits

  • Operates over a Wide Input Range
    • MAX17573EVKITA#: VOUT1 = 3.3V, IOUT1 = 3.5A, VIN1 Range = 4.5V to 60V
    • MAX17573EVKITB#: VOUT2 = 5V, IOUT2 = 3.5A, VIN2 Range = 6.5V to 60V
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Adjustable Soft-Start Time
  • Active-Low RESET Output with a Pullup Resistor to an External Supply
  • External Clock Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions

Product Details

The MAX17573 evaluation kit (EV kit) provides proven 3.3V and 5V designs to evaluate the MAX17573 high-efficiency, wide input voltage Himalaya synchronous DC-DC converter. The 3.3V application circuit delivers load current up to 3.5A from a wide 4.5V to 60V input supply and operates at a 500kHz switching frequency. The 5V application circuit delivers load current up to 3.5A from a wide 6.5V to 60V input supply and operates at a 500kHz switching frequency.

Each application circuit on the EV kit features programmable enable and input Undervoltage Lockout (UVLO), soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kit’s layout is optimized for conducted and radiated EMI and thermal performance. For more details, refer to the Product Highlights section in the MAX17573 IC data sheet.

MAX17573EVKITB

Evaluation Kit for the MAX17573 in 5V and 3.3V Output- Voltage Applications

Buy Now View Details

Features and Benefits

  • Operates over a Wide Input Range
    • MAX17573EVKITA#: VOUT1 = 3.3V, IOUT1 = 3.5A, VIN1 Range = 4.5V to 60V
    • MAX17573EVKITB#: VOUT2 = 5V, IOUT2 = 3.5A, VIN2 Range = 6.5V to 60V
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Selectable PWM, PFM, and DCM Modes of Operation
  • Adjustable Soft-Start Time
  • Active-Low RESET Output with a Pullup Resistor to an External Supply
  • External Clock Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions

Product Details

The MAX17573 evaluation kit (EV kit) provides proven 3.3V and 5V designs to evaluate the MAX17573 high-efficiency, wide input voltage Himalaya synchronous DC-DC converter. The 3.3V application circuit delivers load current up to 3.5A from a wide 4.5V to 60V input supply and operates at a 500kHz switching frequency. The 5V application circuit delivers load current up to 3.5A from a wide 6.5V to 60V input supply and operates at a 500kHz switching frequency.

Each application circuit on the EV kit features programmable enable and input Undervoltage Lockout (UVLO), soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kit’s layout is optimized for conducted and radiated EMI and thermal performance. For more details, refer to the Product Highlights section in the MAX17573 IC data sheet.
MAX17573EVKITA
Evaluation Kit for the MAX17573 in 5V and 3.3V Output- Voltage Applications
MAX17573EVKITB
Evaluation Kit for the MAX17573 in 5V and 3.3V Output- Voltage Applications

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About the Vin (min) voltage
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