7Semi DC-DC Buck Converter 14V-60V Input to 5V 3A Output- AP66300

The 7Semi DC-DC Buck Converter (AP66300) is a high-performance step-down voltage regulator module designed to efficiently convert input voltages from 14 V to 60 V into a stable 5 V DC output with a maximum output current of 3 A. Built around the AP66300 synchronous buck converter IC, it delivers excellent efficiency, low output ripple, and robust protection features. The converter is ideal for industrial automation, battery-powered devices, automotive electronics, and embedded systems that require a reliable 5 V power rail from high-voltage sources.

Technical Specifications:

• Regulator IC: AP66300 (Diodes Incorporated)
  
• Conversion Type: Synchronous step-down (buck) converter
  
• Input Voltage Range: 14 V to 60 V
  
• Output Voltage: Fixed 5 V DC
  
• Output Current: Up to 3 A continuous
  
• Efficiency: Up to 90% (typical at rated load)
  
• Switching Frequency: 300 kHz (typical)
  
• Output Ripple: <50 mV (typical)
  
• Load Regulation: ±1%
  
• Line Regulation: ±0.5%
  
• Operating Temperature: -40°C to +125°C
  
• Protection Features:
   – Overcurrent protection (OCP)
   – Short-circuit protection (SCP)
   – Thermal shutdown (OTP)
   – Under-voltage lockout (UVLO)
  
• PCB Material: High-quality FR-4 with thick copper traces for current handling
  
• Cooling: Passive; heatsink optional under continuous high load
  

Features:

• Wide input voltage range (14 V to 60 V) for flexible application compatibility
  
• Fixed 5 V, 3 A regulated output ideal for powering logic and peripheral circuits
  
• High-efficiency synchronous buck topology for minimal power loss
  
• Built-in protection circuitry for safe and reliable operation
  
• Low output ripple suitable for sensitive analog and digital systems
  
• Compact, ready-to-use PCB design for quick integration
  
• Supports both industrial and automotive-grade environments
  
• Stable operation under dynamic load and line conditions
  
• Easy to interface with microcontrollers, sensors, and wireless modules
  
• Long operational life with thermally stable performance

Applications:

• Industrial automation and control equipment
  
• IoT and embedded electronic systems
  
• Automotive and vehicular electronics power supply
  
• Robotics, drones, and motor control circuits
  
• LED drivers and display systems
  
• Battery-powered and solar-based applications
  
• Communication and networking devices
  
• Power supply for Arduino, Raspberry Pi, ESP32, and other microcontrollers
  
• Portable instruments and field-deployable devices
  
• Test benches, lab instrumentation, and educational electronics