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Components

Switching voltage regulator

The integrated fixed / adjustable regulators (ADJ) operating in switching mode are of the "step-down" (LM2575 / LM2576) and "step-up" (LM2577) type, respectively.

This series of regulators is also notable for its very good efficiency, over 80%, and for a decrease in dissipated power, which is good enough arguments to use them instead of the classic 3-terminal stabilizers. Usually, these stabilizers do not require a cooling radiator, and if we still want to mount one, it will be much smaller than in the case of old stabilizers.

These integrated circuits are delivered in a 5-pin TO220 type capsule (LM257x-T) - adjustable voltage variant (ADJ) or in a 4-pin TO-3 type capsule (LM257x-K) - with a fixed output voltage.

Schematic and Layout

circuit.png

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Sep 02,2021

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Switching voltage regulator

Useful power supply circuit with LM2576-ADJ.

1998

Published: Sep 02,2021

Standard PCB

Download Gerber file 44

BOM(Bill of materials)

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File Last Updated: 2023/02/15 (GMT+8)

File update record

2023-02-1501:17:19

Gerber file is updated.

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