LM2596 ADJ PDF

It is available in many versions with fixed output voltage like 3. The IC is basically a buck converter that operates on KHz switching frequency, it takes in an input voltage and uses the internal switching circuit to regulated a desired output voltage. It has high efficiency and in-built Thermal shutdown and current limit functionalities. So if you are looking for a small high package, easy to use high current buck converter IC then LM might me the right choice for you.

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Info This module features the adjustable LM step-down buck switching regulator, capable of driving a 3A load with excellent line and load regulation.

Since the trimpot has 25 turns of adjustment you can easily adjust the output of the module to exactly the voltage you need. The simplest way to reduce the voltage of a DC supply voltage is to use a linear voltage regulator LDO , but linear regulators step down voltage by dissipating the excess energy as heat and do not yield any current step up. Buck converters , on the other hand, can be remarkably efficient and provide a step up in current output.

As an example of the characteristics of this module, Addicore ran a test with a 15V supply input and the output of the module adjusted to 5V with a ohm load connected on the output. The input current was That is nearly double the input current. We were able to change the input supply voltage down to 6. The output voltage was still 4. That is a perfect example of why switching buck converters can be such a great way to convert DC voltages.

If you need to increase step-up a voltage consider using a boost converter such as our MT boost converter module. This LED has a 1k ohm resistor in series with it as a current limiting resistor.

If you adjust the module for an output voltage over 12V we recommend removing the LED or swapping the 1k ohm resistor for a higher resistance to prevent the resistor from getting too hot and to protect the LED from damage.

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