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Voltage regulators for electronics projects: step-down, step-up & more

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Voltage regulators convert the input voltage into the desired output voltage, ensuring a constant operating voltage at the required level. Modern switching regulators allow both a reduction and an increase in output voltage. Find the right voltage regulators here!

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Showing 1 - 24 of 167 products
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Voltage regulators as a central component in electronics

All kinds of electronic devices require a constant operating voltage at a fixed level. Often, the input voltage from power supplies, batteries, and the like exceeds this value, making a reduction in voltage essential: this is achieved by step-down voltage regulators. They reduce the input voltage to the desired output voltage level. Is the input voltage too low? Then a step-up voltage regulator can help.

These two basic types, along with buck-boost voltage regulators and shunt regulators as two variations, are available here in the shop in numerous versions. Whether you're a tradesperson, industrial company, or an ambitious electronics hobbyist: equip yourself here with high-quality voltage regulators!

Different types of voltage regulators

If your project requires voltage regulation , the first question is what specific function it needs to perform. Choose from the following types of voltage regulators:

The step-down voltage regulator

This type is a buck converter that reduces a high input voltage to a lower output voltage. A key consideration is the degree of voltage reduction the regulator can achieve. What maximum input voltage does it reduce to which level?

The step-up voltage regulator

The boost converter increases a low input voltage to a higher level. Again, it's important to note the minimum and maximum values for input and output voltage.

The buck-boost voltage regulator

A buck-boost converter offers the flexibility to handle both functions. These adaptable buck-boost regulators ensure a constant operating voltage in dynamic environments.

The shunt regulator

This is a classic parallel regulator, designed for low-power applications and only capable of reducing voltage—unlike switching regulators. This type requires current limiting, which is often implemented using a series resistor. One advantage is the low cost; disadvantages include limited applications and lower efficiency.

Innovative switching regulators instead of linear regulators

In practice, efficient switching regulators have become the standard, while linear regulators like shunt regulators now play only a minor role. Whether step-down voltage regulators or buck-boost regulators: modern switching regulators perform reliably—with high efficiency!

Advantages of switching regulators at a glance:

  • high efficiency
  • excellent thermal performance
  • wide voltage range supported
  • designed for higher currents

Note that switching regulators often require additional components such as capacitors. Consult with your electrical engineering experts for advice!

Frequently asked questions about voltage regulators

These regulators are found in numerous electronic components. Essentially, they are used wherever you need to convert a specific input voltage into a constant output voltage. The range of applications is vast: for example, voltage regulators with low power ratings are used in computers and consumer electronics, while more powerful models are often used in industrial systems.

Yes, this is easily possible with compatible models. Most voltage regulators include this specific detail in the product description: manufacturers clearly indicate whether a regulator is suitable for use with a Raspberry Pi, whether as a router or in another function.

There are several important factors to consider. First, determine the basic function the regulator needs to perform—should it step down voltage, boost it, or both? Beyond that, look at key performance specifications such as the minimum and maximum operating voltage and the maximum output current. Also, consider useful features like overheat and short-circuit protection.

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