onsemi

CS51414EDR8

CS51414EDR8 Description

The CS51414EDR8 from onsemi is a high-performance adjustable buck (step-down) DC-DC switching voltage regulator, delivering up to 1.5A of output current. Designed for efficiency and flexibility, it operates over a wide input voltage range of 4.5V to 40V, making it suitable for diverse power supply applications. The output voltage is adjustable from 1.27V to 38V, providing precise regulation for low-voltage circuits. With a switching frequency of 520kHz, it balances compact filtering requirements and power efficiency. Packaged in an 8-pin SOIC and available in Tape & Reel (TR), it is optimized for surface-mount assembly in space-constrained designs.

CS51414EDR8 Features

• Wide Input Range (4.5V–40V): Supports industrial and automotive voltage fluctuations.
• Adjustable Output (1.27V–38V): Versatile for low-power microcontrollers, sensors, and FPGAs.
• High Efficiency (Non-Synchronous Buck): Simplified design with external diode for cost-sensitive applications.
• 520kHz Switching Frequency: Reduces inductor size while minimizing EMI.
• Robust Packaging (8-SOIC): MSL 1 (Unlimited) rating ensures reliability in humid environments.
• Obsolete Status: Ideal for legacy systems or designs requiring long-term inventory planning.

CS51414EDR8 Applications

This regulator excels in:

• Industrial Automation: Powering PLCs, motor controllers, and instrumentation with unstable input sources.
• Automotive Electronics: Supporting infotainment, lighting, and ECUs in 12V/24V systems.
• Embedded Systems: Providing efficient voltage conversion for IoT devices and portable equipment.
• Telecom Infrastructure: Delivering stable power to RF modules and baseband processors.

Conclusion of CS51414EDR8

The CS51414EDR8 is a reliable, high-voltage buck regulator for demanding applications requiring wide input ranges and adjustable outputs. While obsolete, its 520kHz switching frequency, 1.5A current capability, and industrial-grade robustness make it a pragmatic choice for legacy or cost-driven designs. Engineers should evaluate alternatives for new projects but can leverage this IC for proven performance in harsh environments.