2 layers335 × 300 mm
2 layers21.3 × 57 mm
MicVoltReg
sinucidal/hpRegulator5V 2.5A switch-mode voltage regulator based off Micrel chipset
- Size
- 21.3 × 57 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 14
- Nets
- 8
- Pads
- 46
- Tracks, vias
- 100, 11
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 7 May 2017
- Updated
- 7 May 2017
Overview
MicVoltReg is an open-source printed circuit board by sinucidal, from the sinucidal/hpRegulator repository on GitHub. It is a 2-layer board of 21.3 × 57 mm with 14 parts on 8 nets, routed with 100 tracks and 11 vias.
It is built around the MIC2178-5.0BWM and FM5817-W. Its parts include 7 capacitors, 2 resistors, 1 IC, 1 diode and 1 inductor. It belongs with the power boards of this library.
Main components
2
MIC2178-5.0BWM
SOIC-20-40℃~+125℃@(TJ) 1 2.5A 200kHz 4.5V~16.5V 5V 600uA Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Operating status indication、Cycle-by-cycle current limiting、Frequency synchronization、Built-in LDO regulator Step-down type Yes SOIC-20 DC-DC ConvertersMicrochip TechnologyDC-DC Converters
FM5817-W
DO-214ACDO-214AC New Arrivals ROHSRECTRONUncategorised
README
README.mdhpRegulator
5V 2.5A switch-mode voltage regulator based off Micrel chipset
Using an MIC2178-5.0BWM chip from Micrel this circuit should be able to supply up to 2.5 at 5V to feed even the hungriest project. I developed it for use on a mobile battery pack for a Raspberry Pi rev. 3.0 project that was drawing just under 2A. Right now this post will have just the rev. 1.0 information but once I get the board and components I will thoroughly test the system and make updates to this post accordingly. This file will be the progress log. It should be noted the schematic is based off their data-sheet for the device (http://www.alldatasheet.com/datasheet-pdf/pdf/74541/MICREL/MIC2178-5.0BWM.html), I just gave a component layout and trace routing. I used KiCad 4.0.5 for the project.
"The bigger the sine the louder the whine..." -Sinucidal
Parts
14| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 22uF | Capacitors_Tantalum_SMD:CP_Tantalum_Case-X_EIA-7343-43_Hand | C1, C2 |
| 1 | 0.01uF | Capacitors_SMD:C_0805_HandSoldering | C5 |
| 1 | 0.1uF | Capacitors_SMD:C_1210_HandSoldering | C3 |
| 1 | 10nF | Capacitors_SMD:C_0805_HandSoldering | C4 |
| 1 | 15k | Resistors_SMD:R_0805_HandSoldering | R2 |
| 1 | 20k | Resistors_SMD:R_0805_HandSoldering | R1 |
| 1 | 220uF | Capacitors_Tantalum_SMD:CP_Tantalum_Case-X_EIA-7343-43_Hand | C7 |
| 1 | 220uF | Capacitors_SMD:C_1210_HandSoldering | C6 |
| 1 | 47uH | Choke_SMD:Choke_SMD_12x12mm_h6mm | L1 |
| 1 | FM5817 | kicad footprints:DO-214AC | D1 |
| 1 | MIC2178-5.0BWM | kicad footprints:WSOIC-20 | U1 |
| 1 | input_conn | Connectors_JST:JST_EH_B02B-EH-A_02x2.50mm_Straight | 6-16V IN |
| 1 | ouput_conn | Connectors_JST:JST_EH_B02B-EH-A_02x2.50mm_Straight | 5V OUT |
Questions
How big is the MicVoltReg PCB?
It measures 21.3 × 57 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MicVoltReg use?
14 parts, built around the MIC2178-5.0BWM and FM5817-W. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the MicVoltReg KiCad files?
From the sinucidal/hpRegulator repository on GitHub, at the commit this page was made from: the board is micVoltReg.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the MicVoltReg design in my own project?
Its repository states no licence, so its author keeps all rights: ask sinucidal before reusing the design.
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