STMicroelectronics Linear Voltage Regulator 16V 80μA, Surface Mount SOT-89 3-Pin LD2981CU50TR

STMicroelectronics LD2981CU50TR is a low dropout (LDO) linear voltage regulator designed to provide stable voltage regulation up to 100mA. This device operates with a low quiescent current of 80μA, making it suitable for power-sensitive applications. Housed in a compact SOT-89 surface mount package measuring 4.6mm in length, 2.6mm in width, and 1.6mm in height, it facilitates high-density PCB layout.

The regulator supports input voltages ranging from a minimum of 2.5V to a maximum of 16V and maintains output voltage with low dropout, ensuring efficient performance in low voltage differential scenarios. Operating with positive polarity, it is ideal for applications requiring a clean and reliable voltage reference.

It is engineered to function reliably up to a maximum operating temperature of 125°C, providing robustness in industrial and commercial electronic circuits. The LD2981CU50TR is well suited for power management in embedded systems, communication devices, and other electronic equipment requiring precise voltage regulation.

The design focuses on low noise operation with a high power supply rejection ratio (PSRR), enabling stable power delivery and minimizing interference. Typical applications include battery-powered equipment, portable instrumentation, and other devices where power efficiency and reliability are critical.

The package type is SOT-89 with a 3-pin configuration, intended for surface mount technology, allowing efficient automated assembly. While this device does not hold specific automotive certifications, it suits a wide range of industrial and consumer electronic applications.

Maintains a low dropout voltage for efficient regulation. Operates with a maximum input voltage of 16V and a minimum input voltage of 2.5V. Features a low quiescent current of 80μA to reduce power consumption. Compact SOT-89 3-pin surface mount package with precise dimensions.

Designed for positive voltage output with stable regulation up to 100mA. Maximum operating temperature rated at 125°C ensuring operational reliability. Offers high power supply rejection ratio and fast transient response.

Ideal for electronics power management in embedded and portable systems. Surface mount component that supports automated manufacturing processes. Non-automotive standard device targeting industrial and commercial use cases.

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