7Semi DC Buck Converter Breakout 3.3V 2A Out (AP62301)

The 7Semi DC Buck Converter Breakout 3.3V 2A (AP62301) is a compact, high-efficiency step-down voltage regulator module designed to convert higher DC voltages to a stable 3.3V output. It uses the AP62301 synchronous buck converter IC, which integrates high- and low-side MOSFETs for efficient and reliable operation. This breakout provides up to 2A continuous output current, making it ideal for powering microcontrollers, IoT modules, sensors, and embedded circuits that require a regulated 3.3V supply. Its compact size, thermal protection, and high conversion efficiency make it perfect for space-constrained and battery-powered applications.

Technical Specifications:

• Regulator IC: AP62301 (Synchronous Step-Down Converter)
  
• Conversion Type: DC-DC Buck Converter
  
• Input Voltage Range: 4.2V to 18V
  
• Output Voltage: Fixed 3.3V
  
• Output Current: Up to 2A continuous
  
• Efficiency: Up to 90% (typical at rated load)
  
• Switching Frequency: 750kHz (typical)
  
• Output Ripple: <50mV (typical)
  
• Quiescent Current: 275µA (typical)
  
• Control Type: Constant On-Time (COT) control for fast transient response
  
• Protection Features:
   – Overcurrent protection (OCP)
   – Thermal shutdown (OTP)
   – Short-circuit protection (SCP)
   – Under-voltage lockout (UVLO)
  
• Operating Temperature: -40°C to +125°C
  
• PCB Type: High-quality FR-4, compact breakout format
  
• Output Interface: 2.54mm pin headers for VIN, GND, and VOUT
  

Features:

• Provides a fixed, regulated 3.3V output at up to 2A continuous load current
  
• Wide input voltage range suitable for various DC power sources
  
• High-efficiency synchronous buck design reduces heat and power loss
  
• Compact, ready-to-use breakout ideal for embedded power regulation
  
• Built-in thermal, short-circuit, and overcurrent protection for safe operation
  
• Constant on-time control ensures fast transient response and low ripple
  
• Low standby current for energy-efficient designs
  
• Easy to integrate into breadboards, PCBs, and IoT projects
  
• Suitable for both 3.3V logic systems and battery-powered devices
  
• Rugged design ensures long-term reliability and stable operation

Applications:

• Embedded and IoT systems requiring a stable 3.3V power supply
  
• Powering microcontrollers such as ESP32, STM32, Arduino, and Raspberry Pi Pico
  
• Wireless modules (Wi-Fi, Bluetooth, LoRa, GSM) and sensor networks
  
• Industrial control and automation electronics
  
• Robotics, drones, and portable electronic systems
  
• Battery-powered and solar-powered applications
  
• Replacement for inefficient linear voltage regulators
  
• Educational and prototyping projects requiring efficient DC power conversion