onsemi

CS51411EDR8G

CS51411EDR8G Description

The CS51411EDR8G from onsemi is an adjustable buck (step-down) switching voltage regulator designed for high-efficiency DC-DC conversion. With an input voltage range of 4.5V to 40V and an adjustable output voltage from 1.27V to 38V, it delivers up to 1.5A of continuous output current. Operating at a 260kHz switching frequency, this regulator balances performance and efficiency, making it suitable for a variety of power management applications. Packaged in an 8-pin SOIC and available in Tape & Reel (TR), it is optimized for surface-mount assembly. Though marked as obsolete, it remains a reliable choice for legacy designs requiring stable, adjustable power conversion.

CS51411EDR8G Features

• Wide Input Range (4.5V–40V): Supports diverse power sources, including automotive and industrial supplies.
• Adjustable Output (1.27V–38V): Flexible voltage regulation for custom applications.
• 1.5A Output Current: Suitable for moderate-power loads with high efficiency.
• Non-Synchronous Buck Topology: Simplifies design while maintaining robust performance.
• 260kHz Switching Frequency: Reduces external component size without excessive noise.
• Surface-Mount 8SOIC Package: Compact footprint for space-constrained PCB layouts.
• REACH Unaffected: Compliant with environmental regulations.
• MSL 1 (Unlimited): No moisture sensitivity concerns during storage or assembly.

CS51411EDR8G Applications

This regulator excels in systems requiring efficient step-down conversion with adjustable output:

• Industrial Power Supplies: For PLCs, sensors, and control systems needing stable voltages.
• Automotive Electronics: Non-critical 12V/24V systems where input fluctuations are common.
• Embedded Systems: Powering microcontrollers, FPGAs, or peripherals in compact designs.
• Legacy Equipment Maintenance: Replacing obsolete linear regulators with higher-efficiency solutions.
• Battery-Powered Devices: Extends runtime by minimizing dropout losses in portable instruments.

Conclusion of CS51411EDR8G

The CS51411EDR8G offers a balance of flexibility, efficiency, and reliability for DC-DC conversion tasks. Its wide input range, adjustable output, and moderate current capability make it versatile for industrial, automotive, and embedded applications. While obsolete, its proven topology and onsemi’s quality ensure dependable performance in legacy or cost-sensitive designs. Engineers should evaluate alternative modern regulators for new projects but can rely on this IC for existing systems requiring robust power management.