[Explained] How to Reduce 5V to 4V Using Resistor? 

[Explained] How to Reduce 5V to 4V Using Resistor? 

While there exists an array of sophisticated methods for voltage regulation, including buck and boost converters, low-dropout regulators, and switched-mode power supplies, the age-old technique of utilizing resistive dividers remains relevant, especially in non-critical applications.  This article delves into the…