Calculate faster. Design with confidence.

Estimate trace width using the IPC-2221 external or internal trace approximation.

Approximation only; verify against your PCB manufacturer and thermal design.

Find divider output voltage and divider current from the input voltage and resistor values.

Assumes the output is lightly loaded. Include load impedance for precision designs.

Estimate operating time from battery capacity, system load, efficiency, and usable capacity.

Real runtime varies with temperature, battery age, discharge rate, and peak loads.

Select a series resistor to limit LED current and calculate resistor dissipation.

Use a resistor with a power rating comfortably above the calculated dissipation.

Calculate the feedback resistor for an adjustable XL6009 boost converter.

Use the IC datasheet and validate ripple, layout, inductor, diode, and thermal limits.

Convert a 12-bit ESP32 ADC reading into an estimated pin voltage and sensor voltage.

ESP32 ADC response is non-linear and varies by chip, attenuation, calibration, and board layout.

Estimate a practical supply current and power rating with headroom and conversion losses.

Check startup surge, transient response, derating, ambient temperature, and certification requirements.