STMicroelectronics LD2981ABM28TR Voltage Regulator

The LD2981ABM28TR from STMicroelectronics is a highly efficient, low drop voltage regulator that is designed to deliver a fixed output with a high level of accuracy. This regulator is an ideal choice for battery-powered applications due to its low dropout voltage and low quiescent current, which help to extend battery life. It is also suitable for use in portable devices, microcontroller power supplies, and other applications where power efficiency is crucial.

The LD2981ABM28TR is capable of providing a steady 3.3V output voltage from a wide input voltage range. The device can supply up to 100mA of output current, which makes it suitable for low power applications. Its dropout voltage is exceptionally low, typically just 120mV at 100mA of load, ensuring efficient operation even when the input voltage is close to the output voltage.

This voltage regulator also features thermal shutdown and short-circuit protection, which safeguard the device and the application against damage from over-temperature and over-current conditions. The LD2981ABM28TR's high accuracy of output voltage (±1% at 25°C) provides reliable performance for sensitive electronic circuits.

The LD2981ABM28TR comes in a compact SOT-23-5 package, which is designed for space-constrained applications. Its small footprint and low profile make it an excellent choice for portable devices where board space is at a premium.

Key features of the LD2981ABM28TR include:

• Fixed output voltage of 3.3V
• Low dropout voltage: 120mV typ. at 100mA load
• Low quiescent current
• Output current up to 100mA
• ±1% output voltage accuracy at 25°C
• Thermal shutdown and short-circuit protection
• SOT-23-5 package for compact design

In summary, the LD2981ABM28TR from STMicroelectronics is a reliable and energy-efficient solution for a wide range of applications where stable voltage regulation is essential. Its protective features and small package size make it a versatile component for designing compact, safe, and efficient electronic systems.