STMicroelectronics Voltage Regulators - Linear LD2985AM31R

The LD2985AM31R is a linear voltage regulator designed to provide a fixed output voltage of 3.1 V with a maximum output current of 150 mA. It features a very low dropout voltage of 280 mV at 150 mA load and only 7 mV at 1 mA load, making it suitable for low power and low noise applications. The device has a low quiescent current of 2 mA at 150 mA load and less than 1 µA in sleep mode when the inhibit function is activated. The regulator operates over a temperature range of -40 °C to 125 °C and is housed in a compact SOT23-5L package. Additionally, it includes internal current and thermal limiting features, and it produces low output noise voltage of 30 µVrms, which is beneficial for sensitive electronic applications. Typical applications include cellular phones, laptops, PDAs, and other battery-powered devices.