Voltage Regulator

Everyone

To every lovers of APPzone, now available Voltage Regulator by Peter Ho. Unlock great functions that support your daily tasks. Explore related topics via Tools.

How To Fix Common Issues Voltage Regulator

Adjustable voltage regulator is a device to produce steady voltage by adjusting resistors. It is very common used in electronic projects for hobbyist, electronic engineers.

Features
* To find out combinations of 2 resistors making a desired output voltage
* Calculate resistor values / output voltage
* Export result to a CSV file

Features in PRO version only
* Calculate thermal resistance of heatsink
* No Ads
* No limitation

Note :
1. For those who need support please email to the designated email.
Do NOT use either the feedback area to write questions, it is not appropriate and that is not guaranteed that can read them.

Use adjustable voltage regulator ; calculate the components value

Updated on

Jul 27, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.

No data shared with third parties
about how developers declare sharing
No data collected
about how developers declare collection

Ratings and reviews

274 reviews

Duane Matthes

January 2, 2026

Good app.....but it annoyingly keeps asking me to rate it every time I open it. (eye roll) Now that I did, hopefully it will quit nagging me. I just don't understand why these developers do that. Completely unnecessary. For some reason, I got bumped back to the free version, but had my money refunded. I don't know why that happened. I bought the pro version again and so far it's working. Very odd, but whatever. It's a good app otherwise. I would definitely recommend it despite the nag.

1 person found this review helpful

Peter Ho

January 15, 2026

It will not ask you anymore once you rate the app.

A Google user

September 28, 2019

TAKES me back to my early days of college, when we had to have all these specs committed to memory. We were told what the final product would do and we would have to build it from off the shelf components on breadboards. All without instructor assistance.

9 people found this review helpful

Peter Ho

September 30, 2019

Thanks for your comment!

A Google user

February 1, 2020

Junk. Requires file system access. All it does is calculate R1 and R2 values for the adjust pin on a barebones LM317 circuit. It also provides broken links to datasheets. Useless app.

14 people found this review helpful

Peter Ho

February 1, 2020

File access permission is for generating the CSV files. We will update the datasheet links. If you have any problems in using the app, please send us an email ([email protected])