LDO vs Buck Converter: Efficiency, Heat, Ripple and Noise
Compare an LDO, synchronous buck and buck followed by an LDO. Calculate losses, junction temperature, PFM ripple, PSRR filtering and battery runtime, with a voltage–load selection map.
Compare an LDO, synchronous buck and buck followed by an LDO. Calculate losses, junction temperature, PFM ripple, PSRR filtering and battery runtime, with a voltage–load selection map.
Compare SF7–SF12 airtime, bit rate, link gain, hourly duty budget and battery cost per message. Enter your regional limit and device currents; optionally estimate ALOHA overlap.
Estimate sensor node battery life from sleep, wake, sensing, connection and transmit states. Include board leakage, regulator current, capacity derating and annual self-discharge.
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