DSRYndc68

HLDO

Overview

The main power transistor is a TIP122. The principle is simple, but if the input voltage is too high, the electrical clearance at the input terminals may need slight adjustment.
In my testing, it works normally; with a 24V input and 12V output, a 500mA circuit with a heatsink is sufficient. The heatsink shape is shown in a Bilibili video: https://www.bilibili.com/video/BV1qa4y127C3/?spm_id_from=333.337.search-card.all.click

Design Files

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Update:2026-03-28 05:30:38

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