

ProgrammableLM317
A TTL-serial programmable LM317 voltage voltage supply circuit board design.
- Size
- 49.5 × 49.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 13
- Pads
- 72
- Tracks, vias
- 123, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 25 Mar 2015
- Updated
- 26 Feb 2018
Overview
ProgrammableLM317 is an open-source printed circuit board by cellularmitosis, from the cellularmitosis/ProgrammableLM317 repository on GitHub, published under the MIT licence. It is a 2-layer board of 49.5 × 49.5 mm with 29 parts on 13 nets, routed with 123 tracks and 0 vias.
It is built around the LM358, MCP4801-E/P and LM317, with the 530002B02500G among its other parts. Its parts include 9 capacitors, 5 ICs, 3 resistors, 3 connectors and 2 diodes. It belongs with the interfaces and adapters boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
4LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational AmplifierMCP4801-E/P
PDIP-8-40℃~+125℃ 0.125LSB、1LSB 1 2.7V~5.5V 4.5us 8 SPI PDIP-8 Digital to Analog Converters (DAC) ROHSMicrochip TechnologyDigital To Analog Converters (DAC)LM317
SOT-223-40℃~+85℃@(Ta) 0.003%Vout 1 1.3V~37V 1A 40V 80dB@(120Hz) Adjustable Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJSMSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators530002B02500G
TO-220 Extruded Heat Sink, Rth: 2.6°C/W, Height 63.5mmAavid ThermalloyUncategorised
README
README.mdProgrammableLM317
A TTL-serial programmable LM317 voltage voltage supply circuit board design.


Schematic: pdf.
Gerbers: zip
OSHPark: link
License
This board design is Open-Source Hardware. It is licensed under the MIT License. It was designed by Jason Pepas.
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0.1uF | CERCAP_2_059A | C2, C3, C4, C6, C7, C8, C9 |
| 4 | HOLE | hole_M3 | H1, H2, H3, H4 |
| 2 | 1N4001 | DIODE_1A_069A_04_PL | D1, D2 |
| 2 | CONN_2 | TERMINAL_BLOCK_2_5mm | P1, P2 |
| 1 | 1.5k | R_AXIAL_0W25_059A | R3 |
| 1 | 10k | R_AXIAL_0W25_059A | R2 |
| 1 | 10nF | CERCAP_2_059A | C10 |
| 1 | 10uF | ELCAP_10_20_V_059A | C1 |
| 1 | 33k | R_AXIAL_0W25_059A | R1 |
| 1 | 530002B02500G | 530002B02500G | H*** |
| 1 | 7805 | TO-220_V_069A | U4 |
| 1 | ATTINY85-P | DIP8_059A | IC1 |
| 1 | CONN_4 | PIN_ARRAY_4x1 | P3 |
| 1 | LM317 | TO-220_V_069A | U1 |
| 1 | LM358 | DIP8_059A | U2 |
| 1 | MCP4801 | DIP8_059A | U3 |
| 1 | OSHW-logo_silkscreen-back_6mm | OSHW-logo_silkscreen-back_6mm | G*** |
| 1 | OSHW-logo_silkscreen-front_4mm | OSHW-logo_silkscreen-front_4mm | G*** |
Questions
How big is the ProgrammableLM317 PCB?
It measures 49.5 × 49.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ProgrammableLM317 use?
29 parts, built around the LM358, MCP4801-E/P, LM317 and 530002B02500G. 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 ProgrammableLM317 KiCad files?
From the cellularmitosis/ProgrammableLM317 repository on GitHub, at the commit this page was made from: the board is kicad/ProgrammableLM317.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ProgrammableLM317 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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