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Monthly Archives: April 2014

[Complete] AAA PSU Parts List and Files

Here’s the promised list (Yes I source most of my parts from Element 14…)

5V SMPS
[IC] MAX1674 1*$8.24 = $8.24
[L] 22uH 1*$1.87 = $1.87
[C] 47uF Electrolytic 2*$0.21 = $0.42 (min reel of 10)
[C] 100nF Ceramic 2*$0.05 = $0.10 (min reel of 100)
[R] 200k SMD 1*$0.009 = $0.009
[R] 20k SMD 1*$0.06 = $0.06
[R] 100k SMD 1*$0.017 = $0.017 (min reel of 5)
[Subtotal] $10.716

3V3 Linear Reg
[IC] RT9198 1*$0.19 = $0.19
[C] 1uF Ceramic 2*$0.022 = $0.044 (min reel of 10)
[Subtotal] $0.234

Misc Parts
Right angle 2 header 1*$0.30 = $0.30
Header plug female 1*$0.50 = $0.50
AAA battery holder 1*$2.45 = $2.45
Solder + Power/Gas (est) = $1.00
[Subtotal] $4.25

PCB (From PCBCart)
Single board = $3.68
Tooling coast per board = $4.549
Postage per board = $2.213
[Subtotal] $10.442

TOTAL per Board = $25.642

Files:
Schematic
PCB Doc
Standard Footprint Lib
Inductor Footprint
Capactor Footprint

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Posted by on April 14, 2014 in Electronics and Circuits, Projects

 

[Complete] AAA powered PSU

The final boards arrive this morning (woo~!).

Wasted no time in assembling one. Was not my best soldering work, but it was also the first time I had soldered something this dense.

It works well and the changes I made supress the ripples a heap better than the prototype board.

[Edit] Component Costs and Files

 
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Posted by on April 14, 2014 in Electronics and Circuits, Projects