CS5174GD8G

Overview

The CS5174GD8G is a negative boost regulator manufactured by onsemi, designed for high-efficiency power conversion. It delivers a switch current of 1.5 A and operates at a switching frequency of 560 kHz. The device supports an input voltage range from 2.7 V to 30 V. It provides an adjustable output voltage with a minimum specification of -2.45 V and a maximum of -40 V. The component is housed in an 8-SOIC package and functions as a charge pump topology. It is rated for junction temperatures between 0°C and 125°C.

Feature Summary

• Negative boost regulation capability for generating inverted voltage rails
• High efficiency performance through optimized charge pump architecture
• Wide input voltage tolerance supporting diverse supply conditions

Applications

• Portable electronic devices requiring negative bias supplies
• LCD panel backlighting systems
• General-purpose DC-DC power conversion modules

Procurement Notes

Verify the exact suffix configuration against official datasheets, as variations such as GDR8 or ED8G may indicate different packaging or compliance statuses. Confirm RoHS compliance requirements prior to procurement, as some variants are marked non-compliant. Check product lifecycle status, as this model may be discontinued or subject to replacement notices. Ensure the selected package matches the PCB footprint specifications exactly.

Selection Notes

Select this component when a compact solution for negative voltage generation is required within a narrow package footprint. The 560 kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 1.5 A current limit for load requirements and ensure the thermal characteristics of the SOIC-8 package suit the application's heat dissipation needs without additional heatsinking.

Part Context

This part belongs to the CS5174 series of switching regulators from onsemi. The series includes various topologies for power management applications. The specific GD8G suffix denotes the package type and lead-free status, distinguishing it from other variants like the GDR8 which may differ in reel quantity or tape-and-reel specifications.

Replacement Considerations

Consult official obsolescence notices for direct substitutes. Cross-reference pinouts and electrical parameters with similar negative boost regulators if alternative sourcing is necessary.