Linear Power & Regulators
Every linear power & regulators calculator on CalcEngines — unit converters, derived indices and interpretive tools, each with its formula, a worked example and the reference intervals it is judged against.
3 calculators in this section
- LDO Power Loss and Thermal CalculatorWork out how much heat a linear regulator dissipates, its efficiency and junction temperature, and the most current it can deliver before it reaches its temperature limit — after checking that the input clears the dropout voltage.
- LM317 Voltage Regulator CalculatorSet an LM317's output with R1 and R2, or work backwards from the voltage you want to a real pair of E24 or E96 resistors — with the reference-tolerance spread, the minimum load current, the power it has to get rid of and the junction temperature that follows.
- Zener Diode Regulator CalculatorSize the series resistor for a zener shunt regulator over its whole input and load range, and see what it really costs: the worst-case zener dissipation, the resistor wattage you need, and the output swing the zener's own impedance causes.