STMicroelectronics Voltage Regulator Low Dropout 18V 200mA LDK320AM33R

STMicroelectronics LDK320AM33R Voltage Regulator is a precision low dropout regulator designed to provide a stable and efficient output voltage with an input voltage range from 2.5 V up to 18 V. It supports a maximum output current of 200 mA with a typical dropout voltage of just 100 mV at 100 mA load, making it suitable for compact and energy-sensitive electronics.

The device features low quiescent current consumption, approximately 60 µA during operation and only 1 µA in off mode, which aids in extending battery life in portable systems. It ensures a high power supply rejection ratio of 88 dB at 120 Hz to minimize noise and voltage fluctuations from the input supply.

Noise reduction capabilities and compatibility with 1 µF ceramic capacitors at the output improve the regulator's performance in sensitive analog and digital circuits. The integrated logic-controlled shutdown pin allows system designers flexible control over enabling and disabling the regulator.

For protection and enhanced reliability, the LDK320AM33R includes current limiting, Safe Operating Area (SOA) protection, and thermal shutdown features that protect the device and the powered circuits from damage in fault conditions.

The regulator is rated for an operating temperature range from -40 °C to 125 °C, allowing usage in industrial, automotive (non-certified), telecommunications, and computing environments that demand robust performance in harsh temperature conditions.

Operates within 2.5 V to 18 V input voltage range providing versatility for different power sources. Maximum output current of 200 mA supports low to moderate load requirements. Very low dropout voltage enhances efficiency and reduces heat dissipation.

Low quiescent current helps maintain low power consumption in battery-operated devices. High PSRR reduces susceptibility to input voltage noise, benefiting sensitive applications. Noise optimized output voltage stabilizes analog and digital circuits.

Logic-controlled electronic shutdown adds operational flexibility. Supports ceramic capacitor output for circuit stability and compact layout. Current, SOA, and thermal protections safeguard device and circuitry. Wide temperature operating range ensures durability and reliability in various industrial scenarios.

This Voltage Regulator is suitable for applications in industrial electronics, consumer electronics, communication equipment, and embedded systems requiring efficient and stable power supply regulation. It is ideal for use in electronic components, power management ICs in telecommunications equipment, computer motherboards, and portable instrumentation.

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