Description
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