STMicroelectronics

LD1117D25

LD1117D25 Description

The LD1117D25 is a fixed-output linear voltage regulator designed by STMicroelectronics, a leading manufacturer in the power management integrated circuit (PMIC) category. This regulator is characterized by its fixed output voltage of 2.5V and a maximum output current of 800mA. It is housed in an 8SO package, making it suitable for surface-mount applications. The LD1117D25 operates within an input voltage range up to 15V and features a dropout voltage of 1.2V at 800mA, ensuring efficient regulation even under high current loads.

LD1117D25 Features

• Output Type: Fixed, providing a stable 2.5V output voltage.
• Input Voltage Range: Up to 15V, offering flexibility in power supply design.
• Output Current: Capable of delivering up to 800mA, suitable for a wide range of applications.
• Dropout Voltage: Low dropout voltage of 1.2V at 800mA, enhancing efficiency and reducing power loss.
• Quiescent Current: Low quiescent current of 10mA, minimizing power consumption during standby.
• PSRR: High power supply rejection ratio of 75dB at 120Hz, ensuring excellent noise filtering.
• Protection Features: Over-current and over-temperature protection, safeguarding the device and connected circuits.
• Operating Temperature: Wide operating temperature range from 0°C to 125°C, suitable for various environmental conditions.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental safety and regulatory adherence.
• Moisture Sensitivity Level: MSL 1 (Unlimited), indicating robustness against moisture-related issues.

LD1117D25 Applications

The LD1117D25 is ideal for applications requiring a stable and efficient power supply. Its fixed 2.5V output and high current capability make it suitable for:

• Consumer Electronics: Providing stable power to devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Ensuring reliable power delivery in control systems, sensors, and actuators.
• Telecommunications: Powering base stations, routers, and other communication equipment.
• Automotive: Supplying power to electronic control units (ECUs) and other automotive electronics.
• Medical Devices: Ensuring precise power regulation in medical monitoring and diagnostic equipment.

Conclusion of LD1117D25

The LD1117D25 from STMicroelectronics is a robust and efficient linear voltage regulator that offers a fixed 2.5V output with a maximum current of 800mA. Its low dropout voltage and high PSRR make it an excellent choice for applications where power efficiency and noise reduction are critical. The device's over-current and over-temperature protection features enhance reliability, while its wide operating temperature range and compliance with industry standards ensure versatility and safety. Despite being marked as obsolete, the LD1117D25 remains a reliable option for designers seeking a proven and stable power management solution.