Conv DC-DC Single Step Down 4V 60V 10-Pin TDFN EP

The MAX17550 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4V to 60V input. The converter can deliver up to 25mA 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 MAX17550 uses peak-current-mode control. The device can be operated in pulse-width modulation (PWM) or pulse-frequency modulation (PFM) modes. The device is available in a 10-pin (3mm x 2mm) TDFN and 10-pin (5mm 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 60V Input
• Adjustable 0.8V to 0.9 x V_IN Output
• 100kHz to 2.2MHz Adjustable Switching Frequencywith External Synchronization

Reduces Power Dissipation

• 22µA Quiescent Current
• Peak Efficiency > 90%
• PFM Enables Enhanced Light-Load Efficiency
• 1.2µA Shutdown Current

Operates Reliable in Adverse Environments

• Peak Current-Limit Protection
• Built-In Output-Voltage Monitoring Active-Low RESET
• Programmable EN/UVLO Threshold
• Monotonic Startup into Prebiased Load
• Overtemperature Protection
• -40°C to +125°C Operation