STMicroelectronics Voltage Regulators - Linear L4931ABDT35TR

The L4931ABDT35TR is a linear voltage regulator from Quarktwin Technology Ltd. designed for low dropout applications, featuring a dropout voltage of only 0.4 V. It can deliver an output current of 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 supports output voltages of 3.3 V, 3.5 V, 5 V, and 12 V, with a typical supply voltage rejection of 70 dB for the 5 V version. This regulator includes a logic-controlled electronic shutdown feature, allowing parts of a circuit to enter standby mode to reduce overall power consumption. It requires only a 2.2 µF capacitor for stability, which can help save space and cost in circuit design. The L4931ABDT35TR is automotive-grade, qualified according to AEC-Q100 standards, and operates within a temperature range of -40 to 125 °C.