CS51414GDR8

Overview

The CS51414GDR8G is a synchronous buck switching voltage regulator manufactured by onsemi. It operates with an input voltage range of 4.5 V to 40 V and delivers up to 1.5 A output current. The device features an adjustable output voltage from 1.27 V to 38 V. It utilizes pulse width modulation control and operates at a fixed switching frequency of 520 kHz. The component is housed in an 8-SOIC package and supports junction temperatures from -40°C to 150°C.

Feature Summary

• Synchronous buck topology for high efficiency
• Adjustable output voltage capability
• Wide input voltage range support
• Integrated thermal protection

Applications

• Industrial power supplies
• Telecommunications equipment
• Point-of-load regulation
• Embedded systems

Procurement Notes

Verify the exact suffix (e.g., GDR8G) as part numbers may vary slightly in documentation. Confirm RoHS compliance status if required for specific regulatory environments. Check current manufacturing status as some variants may be obsolete or discontinued. Ensure the SOIC-8 package matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when a non-synchronous or basic buck converter solution is insufficient for efficiency needs. The 1.5 A current rating suits moderate load applications. Consider the 520 kHz frequency for balancing size and efficiency. Verify that the 40 V maximum input voltage aligns with your system's supply rails.

Part Context

This part belongs to the CS5141x series of low-voltage buck regulators from onsemi. It shares architectural similarities with other members like the CS51413, differing primarily in output configuration and specific electrical limits. The series targets cost-sensitive, space-constrained designs requiring reliable DC-DC conversion.

Replacement Considerations

CS51414EDR8G is listed as a parameter-equivalent substitute. Verify pinout compatibility and electrical specifications against the original datasheet before substitution.