Max8815-board

Step-up converter based on MAX8815.

The circuit has the following features:

Input: 1.5V - 5V

Output: 5V fixed or 3.3V - 5V (adjustable).

The max output current depends on input voltage. the board goes into protection when the input current exceeds 1A

Project web page: https://hackaday.io/project/183512-max8815-step-up-converter

Instructions

5V FIXED OUTPUT:

1. Set J3 shunt to "OFF" position
2. Set J4 shunt to "Normal" position
3. Set J5 shunt to "5v" position
4. Connect Input power supply (range 1,5v - 5v)
5. Set J3 shunt to "ON" position
6. Check D1 led lights ON
7. Connect the output load

ADJUSTABLE OUTPUT:

1. Set J3 shunt to "OFF" position
2. Set J4 shunt to "Normal" position
3. Set J5 shunt to "Adj" position
4. Connect Input power supply (range 1,5v - 5v)
5. Set J3 shunt to "ON" position
6. Check D1 led lights ON
7. Set the output voltage (from 3,3v to 5v) by RV1 potentiometer

By J4 shunt it is possible to set "FPWM" mode according to MAX8815 data sheet

Open Source Development Applications

The project was created using the following Open source applications:

• KiCad

Open Source Hardware Certification

Max8815-board has been certified as open source hardware by the Open Source Hardware Association, with the UID: IT000008.

Certificate link: (https://certification.oshwa.org/it000008.html)

License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. https://creativecommons.org/licenses/by-sa/4.0/

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