STMicroelectronics Voltage Regulator Low Dropout 18V 200mA Surface Mount SOT-89 3-Pin LDK320ADU33R

STMicroelectronics LDK320ADU33R Voltage Regulator is a high-performance low dropout (LDO) regulator featuring a wide input voltage range from 2.5V up to 18V, delivering a maximum output current of 200mA. Housed in a compact surface mount SOT-89 3-pin package, it ensures efficient power regulation in space-constrained applications.

This device is optimized for low quiescent current operation to extend battery life in portable devices, featuring a typical quiescent current of 60μA and ultra-low shutdown current below 1μA. Its low dropout voltage of approximately 100mV at 100mA load enables improved efficiency and performance in power-sensitive environments.

The LDK320ADU33R includes logic-controlled shutdown capability, enabling the regulator to be turned off to reduce power consumption when not in use. Comprehensive protection features include short-circuit current limiting, thermal shutdown, and safe operating area (SOA) protection, enhancing device reliability in industrial, consumer electronics, and battery-powered applications.

Its stabilized output with ceramic capacitors (≥1 μF) ensures low output noise beneficial for sensitive loads. Additionally, users can select from a wide range of fixed output voltages available on request, ranging from 1.2V to 12V in 100mV increments, or opt for adjustable output configurations to meet specific circuit requirements.

This Voltage Regulator is well suited for applications across industrial equipment, portable instrumentation, and embedded systems where stable and efficient voltage regulation is critical. It operates reliably within a temperature range up to 125°C, making it appropriate for demanding environments.

Wide input voltage range from 2.5V to 18V. Low dropout voltage of about 100mV at 100mA. Low quiescent current of 100μA. Logic-controlled shutdown mode with.