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Analog Devices / Maxim Integrated MAX17572 Synchronous Step-Down DC-DC Converter

Analog Devices MAX17572 Synchronous Step-Down DC-DC Converter is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs that operates over a 4.5V to 60V input. This device has internal FETs that enable high efficiency and low-temperature rise. The converter can deliver up to 1A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.2% over -40°C to +125°C. The Analog Devices MAX17572 uses peak current-mode control. The device is available in a 12-pin (3mm x 3mm) TDFN package.

Features

  • Reduces External Components and Total Cost
    • No Schottky-Synchronous Operation
    • Internal Compensation for Any Output Voltage
    • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to StockWide 4.5V to 60V Input
    • Adjustable 0.9V to 0.9 x VIN Output
    • Continuous 1A Current Over Temperature
    • 400kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
  • Reduces Power Dissipation
    • Peak Efficiency > 92%
    • Auxiliary Bootstrap LDO for Improved Efficiency
    • 4.65μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup Mode Overload Protection
    • Adjustable Soft-Start
    • Built-In Output-Voltage Monitoring with Active-Low RESET
    • Programmable EN/UVLO Threshold
    • Monotonic Startup into Prebiased Load
    • Overtemperature Protection
    • High Industrial -40°C to 125°C Ambient Operating Temperature Range/-40°C to 150°C Junction Temperature Range

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High-Voltage, Single-Board Systems
  • Industrial Control Power Supplies
  • Wall Transformer Regulation

MAX17572 Functional Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX17572 Synchronous Step-Down DC-DC Converter

Videos

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Analog Devices / Maxim Integrated MAX17572 Synchronous Step-Down DC-DC Converter

Step-down DC-DC converter with integrated MOSFETs that operates over a 4.5V to 60V input.

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Associated Tool

Analog Devices / Maxim Integrated MAX17572EVKITA / MAX17572EVKITB Evaluation Kits

Designed to evaluate the MAX17572 high-voltage, synchronous step-down DC-DC converter.

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Publicado: 2017-06-16 | Actualizado: 2023-04-18