ISL6322IRZ

Special Purpose Regulators Overview

The ISL6322IRZ is a two-phase DC/DC buck controller from the Intersil ISL6322G series, designed for microprocessor core voltage regulation. It operates with an adjustable switching frequency ranging from 80 kHz to 1 MHz and supports output voltages between 375 mV and 1.99 V. The device delivers up to 50 A of output current and functions within a supply voltage range of 4.75 V to 5.25 V. It is housed in a 48-lead QFN package (7 mm x 7 mm) and complies with RoHS standards. The component supports I2C interface control and includes integrated drivers for synchronous rectification.

Special Purpose Regulators Feature Summary

• Supports two-phase interleaved buck converter architecture for reduced input and output ripple currents
• Features integrated high-side and low-side gate drivers for synchronous rectification
• Enables digital configuration and monitoring via I2C serial interface
• Includes protection mechanisms such as over-current and thermal shutdown

Special Purpose Regulators Applications

• Microprocessor core voltage regulation
• Server and workstation power supplies
• High-performance computing systems
• Telecommunications infrastructure equipment

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'IRZ' against official Renesas documentation to confirm temperature range and packaging details. Confirm availability status as distribution channels may list limited or obsolete stock. Ensure compatibility with existing PCB footprint and thermal design requirements before procurement.

Special Purpose Regulators Selection Notes

Select this component for applications requiring precise digital control of dual-phase power stages. Compare against single-phase alternatives if higher current density is needed. Verify that the required switching frequency range aligns with inductor selection constraints. Ensure system design accommodates the 48-lead QFN thermal pad requirements for adequate heat dissipation.

Special Purpose Regulators Part Context

The ISL6322IRZ belongs to the ISL6322G family of multiphase PWM controllers developed by Intersil, now part of Renesas Electronics. This series targets high-efficiency power delivery for complex digital loads. The 'IRZ' designation typically indicates industrial temperature range and lead-free RoHS-compliant packaging in a QFN form factor.

Special Purpose Regulators Replacement Considerations

Check for direct pin-compatible upgrades within the ISL6322G series. Consider newer Renesas PMIC families if enhanced digital features are required. Verify electrical parameter equivalence for switching frequency and output current capabilities when evaluating substitutes.