MAX17546 4.5V to 42V 5A Synchronous Step-Down DC-DC Converter Evaluation Kit

The MAX17546 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated high-side MOSFET operates over a 4.5V to 42V input. The converter can deliver up to 5A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.4% over -40°C to 125°C. The MAX17546 uses peak current-mode control. The device can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), and discontinuous conduction mode (DCM) control schemes. The device is available in a 20-pin (5mm x 5mm) Thin QFN (TQFN) package. Simulation models are available.

• Reduces External Components and Total Cost
  • No Schottky-Synchronous Operation
  • Internal Compensation for Any Output Voltage
  • Built-In Soft-Start
  • All-Ceramic Capacitors, Compact Layout
• Reduce Number of DC-DC Regulators to Stock
  • Wide 4.5V to 42V Input
  • Adjustable 0.9V to 0.9 x VIN Output
  • 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
• Reduces Power Dissipation
  • Peak Efficiency > 95%
  • PFM/DCM Modes Enable Enhanced Light-Load Efficiency
  • Auxiliary Bootstrap LDO for Improved Efficiency
  • 3.5FA Shutdown Current
• Operates Reliably in Adverse Industrial Environments
  • Hiccup or Latch off Mode Overload Protection
  • DL to LX Short Detection Feature
  • Built-In Output Voltage Monitoring with RESET
  • Programmable EN/UVLO Threshold
  • Monotonic Startup into Prebiased Load
  • Overtemperature Protection
  • -40°C to +125°C Operation