2.35 €
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LM2596 DC-DC Converter: Adjustable Power Supply for Electronics and Arduino
Brand: satkit
Save 5% Was: 2.46 €
2.35€
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The LM2596 DC-DC converter is a Step Down (buck) voltage regulator module that provides an adjustable output voltage between 1.25V and 30V from a higher-voltage power supply, from 4.5V to 35V. This module is widely used in electronics and Arduino projects thanks to its high efficiency and ability to deliver up to 3A of continuous current with adequate heat dissipation.
This module is based on the LM2596 regulator, which is a switching regulator, meaning it is much more efficient than traditional linear regulators, especially when the difference between input and output voltage is significant. Maximum efficiency can reach up to 92%, reducing heat generation and improving the system's energy performance.
Main features
- Adjustable output voltage: from 1.25V to 30V DC.
- Input voltage: 4.5V to 35V DC.
- Maximum output current: 3A with heatsink.
- Output voltage ripple: 30mV, ensuring a stable and clean output.
- Switching frequency: 150KHz for efficient regulation.
- Conversion efficiency: up to 92%, minimising energy losses.
- Load regulation: ±0.5% to maintain constant voltages under different loads.
- Voltage regulation: ±2.5% for output stability.
- Operating temperature: from -40ºC to +85ºC.
- Compact dimensions: 48mm x 23mm x 14mm, ideal for project integration.
Typical uses
This converter is ideal for powering Arduino-based projects and other microcontrollers that require a specific, stable voltage. It is also useful for powering electronic circuits that need a regulated, efficient supply, such as sensors, communication modules and portable devices.
Its adjustable voltage makes it easy to adapt to different needs, supporting experimentation and the development of electronic prototypes.
Compatibility
Compatible with a wide range of DC power supplies within the specified voltage range. It is especially useful in Arduino and DIY electronics projects where a regulated, efficient power supply is required.
- Adjustable output voltage from 1.25V to 30V DC
- Input voltage from 4.5V to 35V DC
- Maximum output current of 3A with heatsink
- High conversion efficiency up to 92%
- Low output ripple, 30mV for a stable signal
- 150KHz switching frequency
- Load regulation ±0.5% and voltage regulation ±2.5%
- Operating temperature from -40ºC to +85ºC
- Compact dimensions: 48mm x 23mm x 14mm
Customer Questions & Answers
What advantages does this LM2596 converter offer over traditional linear regulators in Arduino projects?
The LM2596 uses switch-mode regulation (step-down), allowing efficiencies of up to 92%, which is especially useful where the difference between input and output voltage is significant. This means less heat dissipation and longer battery life in battery-powered projects, compared with linear regulators that turn excess energy into heat.
What is the real current this converter can handle without an additional heatsink?
Without an additional heatsink, the recommended continuous current should not exceed approximately 2 A, as beyond that the LM2596 may reach temperatures that negatively affect its service life and stability. For currents up to 3 A, improved heat dissipation is essential.
What common problems can arise during installation, and how can they be avoided?
Common mistakes include reversing the input polarity, adjusting the potentiometer outside the permitted range, or overloading the module (beyond 3 A). These situations can damage the converter. It is recommended to always check polarity, set the voltage with a multimeter before connecting the load, and verify that the load current does not exceed the specified limit.
Does this module comply with any specific electrical safety standard, or does it require special considerations for use in certified environments?
The LM2596 and this type of module generally do not have industrial electrical safety certifications (such as CE or UL). For critical applications or certified installations, it is recommended to validate compliance with local regulations or use approved modules, especially if they are integrated into finished products for sale.
What is the input voltage range for the LM2596 DC-DC converter?
The input voltage range is 4.5V to 35V DC.
What is the maximum current this module can deliver?
It can deliver up to 3A of continuous current with adequate heatsink.
Is the output voltage adjustable?
Yes, the output voltage is adjustable from 1.25V to 30V DC.
What is the maximum efficiency of the converter?
Maximum efficiency can reach up to 92%.
What applications is this converter ideal for?
It is ideal for electronics and Arduino projects that require a regulated, efficient power supply.
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