STMicroelectronics Voltage Regulators - Linear L4931CZ25

The L4931CZ25 is a linear voltage regulator from Quarktwin Technology Ltd. designed for low dropout applications, featuring a dropout voltage of only 0.4 V. It supports output currents up to 250 mA and operates with a very low quiescent current of 50 µA in OFF mode and 600 µA in ON mode, making it suitable for battery-powered systems. The device includes a logic-controlled electronic shutdown feature, which allows parts of the circuit to enter standby mode, further reducing power consumption. It is available in multiple output voltage options, including 3.3 V, 3.5 V, 5 V, and 12 V, with a stability requirement of just a 2.2 µF capacitor. The L4931CZ25 is automotive-grade, qualified according to AEC-Q100 standards, and operates within a temperature range of -40 to 125 °C.