Texas Instruments

LP8345CLD-3.3/NOPB

LP8345CLD-3.3/NOPB Description

The LP8345CLD-3.3/NOPB is a linear regulator IC designed by Texas Instruments, offering a fixed output voltage of 3.3V and a maximum output current of 500mA. This single regulator is housed in a 6-lead WSON package, making it suitable for surface mount applications. The regulator is designed to operate efficiently within an input voltage range up to 10V, ensuring stable power delivery under various conditions. Despite its obsolescence status, the LP8345CLD-3.3/NOPB remains a reliable choice for applications requiring a low dropout voltage and high power supply rejection ratio (PSRR).

LP8345CLD-3.3/NOPB Features

• Fixed Output Voltage: Provides a stable 3.3V output, ideal for powering digital circuits and microcontrollers.
• Low Dropout Voltage: With a maximum dropout voltage of 0.5V at 500mA, the LP8345CLD-3.3/NOPB ensures high efficiency even at low input-to-output voltage differentials.
• High PSRR: A PSRR of 55dB at 120Hz helps in minimizing noise and ripple, ensuring clean power supply to sensitive components.
• Protection Features: Over-current and over-temperature protection enhance the reliability and longevity of the regulator.
• Low Quiescent Current: Consumes only 50 µA in quiescent state, making it suitable for battery-powered applications.
• Wide Operating Temperature Range: Functions reliably from 0°C to 125°C, making it suitable for industrial and automotive applications.
• Compliance and Packaging: REACH unaffected, RoHS3 compliant, and available in tape & reel packaging, ensuring environmental and regulatory compliance.

LP8345CLD-3.3/NOPB Applications

The LP8345CLD-3.3/NOPB is ideal for a variety of applications where a stable and efficient power supply is crucial. Its low dropout voltage and high PSRR make it particularly suitable for:

• Embedded Systems: Providing clean power to microcontrollers and other sensitive digital circuits.
• Industrial Control: Ensuring reliable operation in harsh environments with varying input voltages.
• Automotive Electronics: Suitable for applications requiring a wide temperature range and robust protection features.
• Battery-Powered Devices: The low quiescent current and high efficiency make it a good fit for applications where battery life is critical.

Conclusion of LP8345CLD-3.3/NOPB

The LP8345CLD-3.3/NOPB, despite being marked as obsolete, remains a robust and reliable linear regulator for applications requiring a fixed 3.3V output and up to 500mA current. Its low dropout voltage, high PSRR, and comprehensive protection features make it a standout choice in its category. While newer alternatives may offer additional features, the LP8345CLD-3.3/NOPB continues to provide excellent performance and reliability, making it a valuable component in various power management applications.