Texas Instruments

LM2678T-3.3/NOPB  

DC Switching Voltage Regulators

LM2678T-3.3/NOPB Description

The LM2678T-3.3/NOPB is a fixed-output, positive buck regulator designed for high efficiency and performance in a wide range of power management applications. Manufactured by Texas Instruments, this regulator is part of the SIMPLE SWITCHER® series and offers a robust solution for converting input voltages ranging from 8V to 40V into a stable 3.3V output at a maximum current of 5A. The device operates at a switching frequency of 260kHz, ensuring minimal noise and high efficiency. The LM2678T-3.3/NOPB is housed in a through-hole TO220-7 package, making it suitable for applications requiring high thermal performance and mechanical stability.

LM2678T-3.3/NOPB Features

• Fixed Output Voltage: The LM2678T-3.3/NOPB provides a stable 3.3V output, ideal for applications requiring a precise and consistent power supply.
• Wide Input Voltage Range: With an input voltage range of 8V to 40V, this regulator can accommodate a variety of power sources, enhancing its versatility.
• High Output Current: Capable of delivering up to 5A of output current, the LM2678T-3.3/NOPB is suitable for high-power applications.
• High Switching Frequency: Operating at 260kHz, the regulator ensures high efficiency and minimal noise, making it suitable for sensitive electronic circuits.
• Positive Output Configuration: The positive output configuration ensures compatibility with a wide range of electronic systems.
• Through-Hole Mounting: The through-hole TO220-7 package provides excellent thermal performance and mechanical stability, making it ideal for industrial and high-reliability applications.
• Compliance and Standards: The LM2678T-3.3/NOPB is REACH unaffected and ROHS3 compliant, ensuring it meets environmental and regulatory standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for unlimited storage conditions.

LM2678T-3.3/NOPB Applications

The LM2678T-3.3/NOPB is ideal for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Industrial Equipment: Suitable for powering industrial control systems, PLCs, and other high-reliability applications.
• Telecommunications: Ideal for powering telecommunication equipment, base stations, and other high-power devices.
• Automotive: Can be used in automotive applications where a stable 3.3V supply is needed for various electronic components.
• Consumer Electronics: Suitable for high-power consumer electronics such as gaming consoles, high-end audio systems, and other devices requiring a stable power supply.
• Medical Devices: Ideal for powering medical equipment where reliability and precision are critical.

Conclusion of LM2678T-3.3/NOPB

The LM2678T-3.3/NOPB is a robust and versatile buck regulator that offers high efficiency and performance in a wide range of applications. Its fixed 3.3V output, wide input voltage range, and high output current make it suitable for high-power and high-reliability applications. The device's high switching frequency ensures minimal noise and high efficiency, while its through-hole mounting provides excellent thermal performance and mechanical stability. The LM2678T-3.3/NOPB is an excellent choice for engineers and designers looking for a reliable and efficient power management solution.

LM2678T-3.3/NOPB Documents

Download datasheets and manufacturer documentation for LM2678T-3.3/NOPB

Images :

Mechanical Outline Drawing       Function Diagram      

PCN :

Process Change Notification (PDF)      

Models :

LM2678T-3.3/NOPB Symbol & Footprint by SnapMagic      

SPICE Models :

LM2678 Unencrypted PSpice Average Model       LM2678 Unencrypted PSpice Average Model Package (Rev. A)       LM2678 Unencrypted PSpice Transient Model Package (Rev. A)       LM2678 Unencrypted PSpice Transient Model