STMicroelectronics

LD1117ADT25TR

LD1117ADT25TR Description

The LD1117ADT25TR is a fixed-output linear voltage regulator designed by STMicroelectronics, a leading manufacturer in the power management integrated circuit (PMIC) category. This regulator is housed in a DPAK package, offering a robust and efficient solution for applications requiring a stable 2.5V output voltage and a maximum output current of 1A. The regulator is designed to operate within an input voltage range up to 15V, ensuring compatibility with a wide range of power sources.

LD1117ADT25TR Features

• Output Type: Fixed at 2.5V, providing a stable and reliable voltage output.
• Input Voltage Range: Capable of handling input voltages up to 15V, ensuring broad compatibility with various power supplies.
• Output Current: Delivers a maximum output current of 1A, suitable for applications requiring moderate power levels.
• Dropout Voltage: A maximum dropout voltage of 1.3V at 1A, ensuring efficient operation even at lower input voltages.
• Low Quiescent Current: Features a low quiescent current of 10 mA, enhancing overall power efficiency.
• High PSRR: Offers a high power supply rejection ratio (PSRR) of 80dB at 120Hz, minimizing the impact of input voltage variations on the output.
• Protection Features: Includes over-current and over-temperature protection, safeguarding the regulator and connected components from damage.
• Mounting Type: Surface mount, suitable for compact and high-density PCB designs.
• Moisture Sensitivity Level: MSL 1 (Unlimited), indicating the device is not sensitive to moisture, enhancing reliability in various environments.
• Operating Temperature Range: Operates within a temperature range of 0°C to 125°C, ensuring reliable performance in a wide range of conditions.
• Package: Supplied in a DPAK package with a tape & reel (TR) format, facilitating easy handling and integration into manufacturing processes.
• Compliance: REACH unaffected and RoHS3 compliant, ensuring environmental and regulatory compliance.

LD1117ADT25TR Applications

The LD1117ADT25TR is ideal for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles that require a stable 2.5V supply.
• Industrial Equipment: Suitable for industrial control systems, sensors, and IoT devices where reliability and efficiency are paramount.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment to provide a stable power source.
• Automotive: Applicable in automotive electronic systems, such as infotainment systems and electronic control units, where a stable power supply is crucial.
• Medical Devices: Ideal for medical equipment that requires precise and stable power, such as diagnostic devices and monitoring systems.

Conclusion of LD1117ADT25TR

The LD1117ADT25TR from STMicroelectronics is a versatile and reliable linear voltage regulator, offering a fixed 2.5V output with a maximum current of 1A. Its low dropout voltage, high PSRR, and comprehensive protection features make it an excellent choice for a wide range of applications. Despite being marked as obsolete, the LD1117ADT25TR remains a robust solution for applications requiring a stable and efficient power supply. Its compliance with environmental and regulatory standards further enhances its suitability for modern electronics.