LM2587 4-V - 40-V, 5-A Expansion Wide VIN Flyback Regulator Review
LM2587 4-V - 40-V, 5-A Expansion Wide VIN Flyback Regulator Review

LM2587 4-V - 40-V, 5-A Expansion Wide VIN Flyback Regulator Review

We will examine the DC-DC converter designed with LM2587s to use in our electronics workshop.


Designed as a small module, this circuit is used to generate different voltages. Standard 12 Volt, 5 Volt, 3.3 Volt etc. used in workshops. We can use this module when we need voltages other than voltage outputs.

We have the application-review on our youtube channel. We experimented with a 9 Volt battery. We achieved lower voltages with the trimpot.

DC-DC Convertor
Against the voltage in the range of 4 Volts -40 Volts applied to the module input, we can obtain voltages in the range of 4 Volts and 40 Volts with the help of the trimpot resistor at the module output.


The module is used in the non-standard voltage requirement required in different circuit stages in an electronic system. Of course, the output voltage is obtained more cleanly, despite the instability of the input voltage.