The 7SEMI AP64350 Buck Converter Board delivers a stable 5V regulated output at up to 1.5A from wide-range input voltages between 3.8V and 40V. Built around the AP64350SP-13, a high-efficiency synchronous buck converter by Diodes Inc., this compact board is ideal for powering MCUs, sensors, communication modules, or any 5V logic device.
With low quiescent current, EMI-optimized design, and integrated protections, it’s a reliable and space-efficient option for DIY electronics, automation systems, IoT nodes, or industrial tools.
Key Features
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Input Range: 3.8V to 40V DC
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Fixed Output Voltage: 5V
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Output Current: Up to 1.5A continuous
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Efficiency: >90% typical, 85% at light loads
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Low Quiescent Current: 22μA (PFM mode)
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Protections: UVLO, overvoltage, thermal shutdown, current limiting
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Compact, Efficient & EMI-Friendly Design
Applications
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5V regulated power supply for microcontroller platforms such as STM32, ESP32, and Arduino
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Reliable power source for communication modules including GSM, GNSS, LoRa, and Wi-Fi
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Suitable for robotics and automation systems requiring compact 5V, 1.5A outputs
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Ideal for powering sensor arrays, ADCs, logic-level devices, and display modules
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Efficient voltage step-down in battery-operated or industrial IoT devices
What’s Included
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1x AP64350 Buck Converter Board
Resources
- IC:
- AP64350SP-13
- Input Voltage:
- 3.8V – 40V
- Output Voltage:
- 5V fixed
- Max Output Current:
- 1.5A (continuous)
- Efficiency:
- Up to 90%
- Quiescent Current:
- 22μA in light load (PFM)
- Operating Temp:
- –40°C to +85°C
- Board Dimensions:
- Approx.24.60mm x 9.83mm
- Board Weight:
- 2g
