The 7SEMI AP64350 Buck Converter Board delivers a stable 5V regulated output at up to 3A from wide-range input voltages between 7V and 40V. Built around the AP64350, 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
- Programmable Switching Frequency: Adjustable from 100 kHz to 2.2 MHz.
- External Clock Synchronization: Supports synchronization with an external clock.
- High Light-Load Efficiency: Provides efficient operation even at very low loads.
- Reduced EMI Design: Optimized gate-driver design helps reduce electrical noise.
- Frequency Spread Spectrum: Spreads switching noise to further reduce EMI.
- Low-Dropout Mode: Maintains stable operation when the input voltage is close to the output voltage.
Protection features
Current Limit Protection
The AP64350 monitors the current and limits excessive current to protect the device. During a prolonged overload or short circuit, it enters Hiccup Mode and periodically attempts to restart until the fault is removed.
Undervoltage Lockout (UVLO)
The AP64350 automatically shuts down when the input voltage becomes too low, preventing unstable operation. It restarts once the input voltage returns to a safe level.
Thermal Protection
The AP64350 automatically shuts down if it becomes too hot and safely restarts once it cools down.
What’s Included
-
1x AP64350 Buck Converter Board
Resources
- IC:
- AP64350SP-13
- Input Voltage:
- 7V – 40V
- Output Voltage:
- 5V fixed
- Max Output Current:
- 3.5A (continuous)
- Efficiency:
- Up to 85%
- Quiescent Current:
- 22μA in light load
- Operating Temp:
- –40°C to +85°C
- Board Dimensions in mm (l x w x h):
- 25 x 10 x 6
- Board Weight:
- 2g
- _3d_glb:
- https://7semi.com/content/3d-files/10358.glb
