STMicroelectronics Voltage Regulators - Linear LD59030DTPU12R

The LD59030DTPU12R is a linear voltage regulator IC from Quarktwin Technology Ltd. designed to provide a fixed output voltage of 1.2 V with a maximum output current of 300 mA. It operates with an input voltage range of 1.5 V to 5.5 V and features a low dropout voltage of 135 mV at a 300 mA load. The device has a very low quiescent current of 28 µA at no load and can drop to 0.03 µA in shutdown mode, making it suitable for battery-operated applications. This regulator includes features such as internal current fold-back protection, high power supply rejection ratio (PSRR) of 75 dB at 1 kHz, and an enable pin for logic-controlled shutdown. It is compatible with ceramic capacitors, requiring an output capacitance of 0.47 µF. The LD59030DTPU12R is housed in a compact DFN4 1x1 package and operates over a temperature range of -40 °C to 125 °C.