ON Semiconductor NCP730 Voltage Regulator
LDO combines low quiescent current with wide input-voltage range
The NCP730 from ON Semiconductor is a CMOS Low Dropout (LDO) voltage regulator which draws a very low quiescent current, helping to prolong run-times in battery-powered, always-on systems or IoT applications.
The NCP730 operates from a wide input-voltage range of 2.7V to 38V. There are various fixed output-voltage options. The NCP730 LDO voltage regulator is also available with an adjustable output voltage in the range 1.2V to 24V.
The ON Semiconductor NCP730 LDO is capable of supplying a maximum 150mA continuous output current, and 200mA peak current. It includes a built-in soft-start circuit and thermal shut-down protection.
The NCP730 dropout voltage, rated at 290mV at 150mA and a 3.3V output, keeps conversion power loss to a minimum, while regulation is maintained at a consistently high level – output-voltage accuracy is ±1% over an operating-temperature range of -40°C to 85°C.
Parts which include a Power Good (PG) circuit indicate that output voltage is in regulation. This signal may be used for power sequencing, or as a microcontroller reset.
The ON Semiconductor NCP730 integrates an innovative fast transient-response amplifier to limit under- and over-shoot, as well as short-circuit and over-temperature protection functions.