Texas Instruments

LM78S40CN

LM78S40CN Description

The LM78S40CN is an adjustable voltage regulator from Texas Instruments, designed for applications requiring a versatile and efficient power management solution. This IC offers a wide input voltage range from 2.5V to 40V and can deliver up to 1.5A of output current through its switching mechanism. The LM78S40CN supports both positive and negative output configurations, making it suitable for a variety of power supply designs. The regulator operates within a frequency range of 100Hz to 100kHz, providing flexibility in switching applications. The output voltage is adjustable from 1.25V to 40V, allowing for precise control over the power supply output. The LM78S40CN is housed in a through-hole package, specifically a 16DIP tube, which ensures robust mechanical stability and ease of integration into existing systems. Despite its obsolescence, the LM78S40CN remains a reliable choice for applications within its specified operating temperature range of 0°C to 70°C. The device is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international regulations. The LM78S40CN is ideal for buck and boost topologies, providing efficient power conversion and regulation.

LM78S40CN Features

• Adjustable Output Voltage: The LM78S40CN offers an adjustable output voltage range from 1.25V to 40V, providing flexibility in power supply design.
• Wide Input Voltage Range: With an input voltage range of 2.5V to 40V, the regulator can accommodate a variety of input sources, enhancing its versatility.
• High Output Current Capability: The device can deliver up to 1.5A of output current, making it suitable for applications requiring higher power delivery.
• Dual Output Configuration: The regulator supports both positive and negative output configurations, expanding its application scope.
• Frequency Range: Operating within a frequency range of 100Hz to 100kHz, the LM78S40CN offers flexibility in switching applications.
• Through-Hole Packaging: The 16DIP tube package ensures robust mechanical stability and ease of integration into existing systems.
• Compliance: The device is REACH unaffected and classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international regulations.
• Operating Temperature Range: The LM78S40CN operates reliably within a temperature range of 0°C to 70°C, making it suitable for a wide range of environmental conditions.

LM78S40CN Applications

The LM78S40CN is ideal for applications requiring efficient power conversion and regulation. Its adjustable output voltage and wide input voltage range make it suitable for a variety of power supply designs, including:

• Buck and Boost Converters: The LM78S40CN's support for both buck and boost topologies makes it ideal for applications requiring efficient power conversion.
• Industrial Power Supplies: The regulator's robust design and wide operating temperature range make it suitable for industrial applications where reliability and efficiency are critical.
• Telecommunications: The device's high output current capability and adjustable voltage range make it ideal for telecommunications equipment requiring precise power control.
• Consumer Electronics: The LM78S40CN's versatility and compliance with international regulations make it suitable for consumer electronics applications where power efficiency and reliability are essential.

Conclusion of LM78S40CN

The LM78S40CN from Texas Instruments is a versatile and efficient power management IC, offering adjustable output voltage, wide input voltage range, and high output current capability. Its support for both positive and negative output configurations and its operation within a broad frequency range make it suitable for a variety of power supply designs. Despite its obsolescence, the LM78S40CN remains a reliable choice for applications within its specified operating temperature range. Its through-hole packaging and compliance with international regulations ensure ease of integration and regulatory compliance. The LM78S40CN is ideal for buck and boost converters, industrial power supplies, telecommunications, and consumer electronics applications, where precise power control and reliability are paramount.