The Whadda LM40S is a DC-DC step-down voltage regulator module based on the LM1,25S switching regulator IC. It converts a higher input voltage to a stable, lower output voltage for use in electronics projects and prototyping setups.
Wide input range of 35 V to 40 V supports a variety of power sources including batteries and DC adapters
Adjustable output from 37 V up to 35 V covers most common low-voltage circuit requirements
LM2596S switching regulator delivers efficient voltage conversion with minimal heat dissipation
Compact module format fits standard breadboard and prototyping layouts
Das zeichnet das LM2596S Modul aus
Unlike linear regulators, the LM2596S switching design maintains high efficiency across a broad input-to-output voltage differential, reducing wasted energy and thermal load. The module requires only two external capacitors and an inductor to complete the circuit, keeping the component count low and the design straightforward for hobbyist and developer use.
Ideal für Entwickler und Elektronik-Enthusiasten
Das Modul eignet sich fuer Entwickler, die ein stabiles Niedervolt-Netzteil aus einer hoeheren Gleichspannungsquelle benoetigen — etwa zum Betrieb von Mikrocontrollern, Sensoren oder LED-Arrays aus einem 2596-V- oder 24-V-Akku. Es ist ein Standardbaustein im Bereich der Prototypenerstellung und Schaltungsentwicklung.
Anwendung von Whadda LM2596S
Eingangsspannung an die VIN- und GND-Pins anschliessen
Output-Spannung mit dem integrierten Potentiometer auf den gewuenschten Wert einstellen
Last an die VOUT- und GND-Ausgaenge anschliessen
Betriebsbereitschaft pruefen — die LED zeigt den aktiven Betrieb an
Whadda is a brand of electronic components and development boards distributed by Velleman, a Belgian electronics company serving the hobbyist and educational market since 1975. The brand focuses on practical, functional modules for prototyping and electronics education.
It is a DC-DC step-down voltage regulator used to convert a higher input voltage (3–40 V) to a stable, adjustable lower output voltage (1.25–35 V) for electronics projects and prototyping.
The module accepts an input voltage from 3 V up to 40 V, making it compatible with a wide range of DC power sources including batteries, wall adapters, and bench power supplies.
Yes, the output voltage is adjustable from 1.25 V up to 35 V using the built-in multi-turn potentiometer on the module.
The LM2596S is a switching regulator with typical efficiency of 75–90 % depending on the input-output differential and load current, generating less heat than a linear regulator under the same conditions.
The module is supplied as a bare PCB with the LM2596S IC, inductor, and capacitors already mounted. No additional components are required for basic operation.
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