[JLCPCB](JLCPCB): 5A Linear Stabilized Voltage Supply Module 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 up to 5A current.  Specification 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  PCB File The PCB samples were made by [JLCPCB](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