CS5174EDR8G

Overview

The CS5174EDR8G is a switching voltage regulator manufactured by onsemi, housed in an 8-SOIC package. It operates as a negative boost converter with adjustable output voltage ranging from -2.45V to -40V. The device supports an input voltage range of 2.7V to 30V and delivers a switch current of 1.5A at a fixed switching frequency of 560kHz. It functions within a junction temperature range of 0°C to 125°C.

Feature Summary

• Negative polarity boost topology for generating inverted voltage rails
• Adjustable output voltage capability across a wide negative range
• Current-mode control architecture for stable regulation

Applications

• Generating negative supply rails for operational amplifiers
• Powering interface circuits requiring dual polarity supplies
• Biasing components in industrial sensor systems

Procurement Notes

Verify the specific suffix 'G' indicates lead-free and RoHS compliance status against the official datasheet. Confirm the operating temperature grade matches the 0°C to 125°C specification. Ensure the SOIC-8 package dimensions align with PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a negative voltage rail is required from a positive input source. The 1.5A switch current rating suits moderate load applications. Verify that the 560kHz frequency fits EMI constraints. Compare against other negative regulators if higher efficiency or different topologies are needed.

Part Context

This part belongs to the CS5174 family of power management ICs designed for DC-DC conversion. It serves as a specialized solution for creating negative voltages where standard buck converters cannot operate. The series integrates control logic and power switches into a compact surface-mount package.

Replacement Considerations

Check for CS5174GDR8 as a potential variant. Verify pinout compatibility and electrical specifications before substitution.