Project Type: PCB Project
Platform: EasyEDA
Features:
- Compatiable with standard breadboard/project board
- The PCB can handle large current as copper pour is used
- Low cost Single layer PCB.
- Can be printed with DIY techniques like toner transfer easily.
- Large input voltage range.
Design rule:
- Trace width :50 mil or 1.27mm (min)
- Clearance: 25 mil or 0.635mm (min)
Schematic diagram:
PCB 2D View( Full color, all layers):
3D Views:
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Special notes:
1. 5V input may not be enough for this design as LM317 needs 3V headroom for proper regulation. See more here.
2. Use a heat sink if you are going to draw large currents( I recommend one if the value is abouve 150mA).
3. Use a small ESR capacitor in near proximity to any microcontroller or boards you are going to power. Learn more about how decoupling capacitors work.
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