ISL6534CV-TR5173

Overview

The ISL6534CV-TR5173 is a versatile triple regulator IC from Intersil, featuring two independent synchronous-rectified buck controllers with integrated 12V gate drivers for OUT1 and OUT2, alongside one linear regulator (LDO). It operates at a switching frequency of 300kHz. The device is housed in a 24-pin TSSOP package with exposed pad, designed for efficient power management in multi-rail applications requiring combined switching and linear regulation capabilities.

Feature Summary

• Integrates two independent synchronous buck controllers with built-in high-side and low-side gate drivers
• Includes a dedicated linear regulator output for noise-sensitive loads
• Supports flexible multi-phase or dual-output configurations via independent control loops

Applications

• Multi-voltage rail systems in embedded computing platforms
• Power management for field-programmable gate arrays (FPGAs) requiring core and I/O supplies
• Industrial control systems needing synchronized switching and clean linear outputs

Procurement Notes

Verify the exact suffix TR5173 against official Renesas/Intersil documentation to confirm tape-and-reel packaging and temperature grade. Ensure compatibility with your board’s thermal design due to the exposed pad requirement. Cross-reference pinout and electrical specifications with the latest datasheet to avoid substitution errors with similar family members.

Selection Notes

Choose this component when a single IC must provide both high-efficiency switched rails and a low-noise linear supply. Confirm that the 300kHz frequency aligns with your electromagnetic interference constraints and inductor selection. Validate that the 24-pin TSSOP footprint matches your PCB layout guidelines and thermal dissipation strategy.

Part Context

Part of the ISL6534 family, which combines switching and linear regulation in a compact form factor. Manufactured by Intersil, now part of Renesas Electronics Corporation. Designed for applications requiring space-constrained, multi-output power solutions with simplified bill of materials.

Replacement Considerations

Check for direct pin-compatible alternatives within the ISL6534 series, such as ISL6534CVZ or ISL6534CV-T, ensuring functional equivalence in gate driver integration and LDO performance before substitution.

FAQ

Does the ISL6534CV-TR5173 include internal MOSFETs?

No, it integrates gate drivers for external synchronous rectifiers but does not contain internal power MOSFETs.

What is the purpose of the third output in this triple regulator?

The third output is a linear regulator (LDO), providing a low-noise supply complementary to the two switching buck outputs.