ISL6402IRZ-TK

Overview

The ISL6402IRZ-TK is a Power Management IC (PMIC) integrating two synchronous step-down converters and one low-dropout linear regulator. It operates with a switching frequency of 300 kHz and utilizes a 28-pin QFN package measuring 5x5 mm. The device supports input voltages typically associated with 5 V and 12 V systems, providing regulated outputs for complex power requirements in a compact footprint suitable for space-constrained designs.

Feature Summary

• Integrates dual synchronous buck converters and a single LDO within a unified package
• Utilizes current-mode control architecture for stable regulation
• Designed for compatibility with small ceramic output capacitors
• Features a low-profile surface-mount package to optimize board space

Applications

• Portable electronic devices requiring multi-rail power distribution
• Embedded systems utilizing mixed analog and digital voltage domains
• Industrial control modules needing compact power management solutions

Procurement Notes

Verify the specific suffix and tape-and-reel configuration against the manufacturer's latest documentation before ordering. Confirm that the 28-QFN thermal pad requirements align with your PCB layout capabilities. Ensure compliance with RoHS directives as specified in the official datasheet. Cross-reference the part number with authorized distributors to confirm current availability status.

Selection Notes

Select this component when a combined solution for multiple DC-DC and LDO rails is required to minimize component count. Evaluate the 300 kHz switching frequency against electromagnetic interference constraints. Consider the 5x5 mm QFN package dimensions relative to available board real estate. Verify that the integrated controller topology meets the dynamic load response requirements of the target application.

Part Context

This device belongs to the Intersil PMIC family designed for efficient power conversion in portable and industrial applications. It consolidates multiple voltage regulation functions into a single chip, reducing assembly complexity. The integration of synchronous rectification improves efficiency compared to traditional diode-based solutions. The series targets markets demanding high power density and reliable performance in limited spaces.

Replacement Considerations

Consult official substitution guides for equivalent PMICs from Renesas or Intersil. Verify pin-to-pin compatibility if replacing directly on existing boards. Check for updated thermal specifications and electrical parameters in newer generations. Ensure that any substitute maintains the same package outline and thermal dissipation characteristics.