MAX17531 Synchronous Step-Down DC-DC Converter Evaluation Kit

The MAX17531 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4V to 42V input. The converter can deliver up to 50mA and generates output voltages from 0.8V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.75% over -40°C to +125°C. The MAX17531 uses peak-current-mode control and can be operated in pulse-width modulation (PWM) or pulse frequency modulation (PFM) modes. The device is available in 10-pin (3mm x 2mm) TDFN and 10-pin (3mm x 3mm) µMAX packages. Simulation models are available.

• Reduces External Components and Total Cost
  • No Schottky-Synchronous
  • Internal Compensation for Any Output Voltage
  • Built-In Soft-Start
  • All-Ceramic Capacitors, Compact Layout
• Reduces Number of DC-DC Regulators to Stock
  • Wide 4V to 42V Input
  • Adjustable 0.8V to 0.9 x VIN Output
  • 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
• Reduces Power Dissipation
  • 22µA Quiescent Current
  • Peak Efficiency > 90%
  • PFM Enables Enhanced Light-Load Efficiency
  • 1.2µA Shutdown Current
• Operates Reliably in Adverse Environments
  • Peak Current Limit Protection
  • Built-In Output Voltage Monitoring RESET
  • Programmable EN/UVLO Threshold
  • Monotonic Startup into Prebiased Load
  • Over temperature Protection Ordering Information
  • -40°C to +125°C Operation