65V linear regulator extends battery life with low quiescent current
The NCP737 series from onsemi are high-voltage linear regulators featuring low quiescent current and a wide input range, ideal for extending operating life in battery-powered industrial and consumer electronics.
Combining a quiescent current of less than 5µA with an input voltage range from 3V to 65V, the NCP737 linear regulators give engineers flexibility when designing eFuses, low-dropout (LDO) regulators, and power rails in drones. The wide input voltage range allows the regulator to withstand continuous dc or transient input voltages, suitable to serve in various product designs.
onsemi offers NCP737 variants including a fixed output voltage of 3.3V, or an adjustable output voltage from 1.2V to 20V, with a high output voltage accuracy of ±0.5% ensuring stable power delivery for precision analog circuitry and flight controllers. The linear regulator remains stable even with small 1µF ceramic output capacitors, allowing for smaller PCB designs.
The NCP737 implements an internal power good circuit with a user-programmable delay, via an external capacitor. This feature supports power sequencing, or acts as a microcontroller reset. The linear regulator also features thermal shutdown, current limit protection and a built-in soft start circuit suppressing inrush current during the startup of drone subsystems.