CSD87351Q5D

Overview

The CSD87351Q5D is a synchronous buck NexFET Power Block manufactured by Texas Instruments. It integrates two N-channel MOSFETs in an asymmetric configuration within an 8-LSON package measuring 5x6 mm. The device supports a drain-source voltage of 30V and operates across a junction temperature range of -55°C to 150°C. Key electrical characteristics include a maximum gate charge of 13.7nC at 4.5V and an input capacitance of 1860pF at 15V. The component is lead-free, RoHS compliant, and classified under the NexFET series for power management applications.

Feature Summary

• Integrates dual N-channel MOSFETs in an asymmetric configuration for synchronous buck conversion
• Utilizes NexFET technology to optimize switching performance and efficiency
• Features a compact 8-LSON surface-mount package with thermal slug

Applications

• Single-phase synchronous buck converter designs
• Point-of-load (POL) voltage regulation modules
• General-purpose DC-DC step-down power stages

Procurement Notes

Verify the specific suffix Q5D against official Texas Instruments documentation to confirm pinout compatibility and thermal specifications. Ensure that the ordering information matches the exact package variant required for the target PCB footprint. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before procurement.

Selection Notes

Select this component for applications requiring a 30V rating and high-density integration. The asymmetric configuration suggests optimized drive requirements for high-side and low-side switches. Evaluate the thermal performance of the 8-LSON package against the expected power dissipation. Confirm that the gate charge parameters align with the driving controller's capabilities for efficient switching.

Part Context

This component belongs to the CSD8735x family of NexFET Power Blocks from Texas Instruments. These devices are designed to simplify power stage design by integrating both high-side and low-side MOSFETs into a single package. The family targets space-constrained applications where board area and assembly complexity need to be minimized while maintaining high efficiency.

Replacement Considerations

• CSD87351ZQ5D