This DC‑DC buck converter breakout board from 7Semi uses the AP63300 synchronous buck regulator IC to deliver a stable 12 V output at up to 3 A from a wide input voltage range. It is designed for high‑efficiency power conversion, low electromagnetic interference (EMI), and compact integration into embedded or industrial systems.

Technical Specification:

• Regulator IC: AP63300 (synchronous buck converter)
• Input Voltage Range: 3.8 V to 32 V (module configured for 14V‑30V nominal)
• Output Voltage: 12 V fixed
• Output Current: Up to 3 A continuous
• Switching Frequency: ~500 kHz
• Quiescent Current: ~22 µA (in light‑load PFM mode)
• Integrated MOSFETs: High‑side ~75 mΩ, Low‑side ~40 mΩ
• Efficiency: Up to ~88% at light load in PFM mode
• Protections: Undervoltage lock‑out (UVLO), output over‑voltage protection (OVP), cycle‑by‑cycle peak current limit, thermal shutdown
• Typical Ambient Temperature Range: –40 °C to +85 °C (junction range higher)

Features:

• Wide input voltage compatibility (battery, adapter, vehicle supply)
• High output current capability (3 A) with compact footprint
• Low quiescent current for energy efficiency in standby or light loads
• Enhanced EMI performance via Frequency Spread Spectrum (FSS) and proprietary gate driver techniques
• Minimal external component count due to integrated loop compensation
• Fixed 12V output simplifies design integration
• Full protection suite for safe and reliable operation

Applications:

• Embedded systems and industrial electronics requiring a 12 V rail from higher‑voltage inputs
• Automotive or battery‑powered systems (14‑30 V supply) converting to 12 V for sensors, controllers or actuators
• IoT devices, robots, or drones needing efficient power conversion
• Test & measurement gear and power modules where stable 12 V supply is needed
• Power tool electronics, network systems, and general purpose point‑of‑load conversion