STMicroelectronics

LD1117DT18C

LD1117DT18C Description

The LD1117DT18C is a fixed output linear regulator from STMicroelectronics, designed to provide a stable 1.8V output voltage with a maximum output current of 800mA. This regulator is housed in a DPAK package, making it suitable for surface mount applications. Despite being marked as obsolete, the LD1117DT18C remains a reliable choice for power management in various electronic systems. It features a maximum input voltage of 15V and a dropout voltage of 1.3V at 800mA, ensuring efficient power delivery even under varying load conditions. The regulator also includes over-current and over-temperature protection features, enhancing its reliability and safety in operation.

LD1117DT18C Features

• Fixed Output Voltage: The LD1117DT18C provides a stable 1.8V output, ideal for applications requiring a precise and consistent power supply.
• High Output Current: With a maximum output current of 800mA, this regulator can support a wide range of devices and circuits.
• Low Dropout Voltage: The maximum dropout voltage of 1.3V at 800mA ensures efficient power conversion, even at lower input voltages.
• Protection Features: Over-current and over-temperature protection mechanisms safeguard the regulator and connected components from damage.
• Low Quiescent Current: A quiescent current of 10mA minimizes power consumption during standby or low-load conditions.
• High PSRR: A power supply rejection ratio (PSRR) of 75dB at 120Hz ensures minimal noise and ripple on the output voltage.
• Compliance: The LD1117DT18C is REACH unaffected and RoHS3 compliant, meeting environmental and regulatory standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates that the component is not sensitive to moisture, making it suitable for a variety of manufacturing environments.

LD1117DT18C Applications

The LD1117DT18C is well-suited for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering microcontrollers, sensors, and other low-voltage components in consumer devices.
• Industrial Systems: Suitable for industrial applications requiring a reliable and efficient power source.
• Telecommunications: Can be used in telecom equipment where a stable 1.8V is supply needed for various components.
• Automotive Electronics: Applicable in automotive systems where a fixed output voltage and high current capability are necessary.

Conclusion of LD1117DT18C

The LD1117DT18C from STMicroelectronics is a robust and reliable linear regulator, offering a stable 1.8V output with a maximum current of 800mA. Its low dropout voltage, high PSRR, and protection features make it a versatile choice for a wide range of applications. Despite its obsolete status, the LD1117DT18C remains a valuable component for power management in various electronic systems, ensuring efficient and reliable performance.