STMicroelectronics Voltage Regulators - Linear LF30CDT

The LF30CDT is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a fixed output voltage of 3V with a maximum output current of 500 mA. It features a very low dropout voltage of 0.45V and operates with a low quiescent current of 50 µA in OFF mode and 500 µA in ON mode, making it suitable for low power and battery-operated applications. The device includes logic-controlled electronic shutdown, allowing for reduced power consumption when not in use. Stability is achieved with only a 2.2 µF capacitor, which contributes to space and cost savings in circuit design. The LF30CDT is available in various package types, including DPAK, and operates over a temperature range of -40 to 125°C. It also offers a supply voltage rejection of 80 dB (typical) and is available with output voltage tolerances of ±1% or ±2% at 25°C.