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JLCPCB: 5A Linear Stabilized Voltage Supply Module

June 13, 2020 by Catherine Sui
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 when we are doing experiments or DIY, this module can be used to power various modules for power supply

Hardware

When we are doing experiments or DIY, this module can be used to power various modules, especially high-current devices such as motors and steering gear. This module can give 5A current.

Step 1: Specification

SCHEMATIC.png

1 This module USES 4 LDO as main chips to achieve 6V ~ 12V buck, and the output voltage can be VCC, 5V, 3V3. There are 17 sets of 5V and 3V3, and if that's not enough, you can use extension ports to add output ports.

2 Power line width : 35um: 1.5mm-3.2a current 2mm-4a current 50um: 1.5mm-3.5a current 2mm-4.3a Current 70um: 1.5mm-4.2a Current 2mm-5.1a Current so: the total power line width should be 2mm

3 The 470uF electrolytic capacitor shall be the current outlet 4. P4(4*4*4Pin). All welding pads shall be changed to 1.3mm 5, U3 and U4 internal connecting pins of the two chips

Step 2: PCB File

pcb.png

The PCB samples were made by JLCPCB with $2

PCB updated that P2: 1 pin height changed to 2.2mm and 2 pin height changed to 2.2mm

The 470uF electrolytic capacitor shall be the current outlet 4. P4(4*4*4Pin). All welding pads shall be changed to 1.3mm 5, U3 and U4 internal connecting pins of the two chips

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