ISL8126CRZ-T

DC DC Switching Controllers Overview

The ISL8126CRZ-T is a dual-phase buck PWM controller from Renesas Electronics, featuring integrated drivers and voltage-mode control. It supports scalable two-phase operation or independent dual outputs with current sharing capabilities. The device includes an internal linear regulator for bias generation and an adjustable oscillator ranging from 150 kHz to 1.5 MHz, with clock synchronization support. Key electrical parameters include a maximum duty cycle of 90%, an output voltage range of 600 mV to 23.85 V, and a supply voltage range of 3 V to 5.6 V. It operates within a temperature range of 0°C to +70°C and is housed in a 32-QFN package.

DC DC Switching Controllers Feature Summary

• Integrates two voltage-mode PWM controllers with leading-edge modulation for dual independent or single two-phase regulation.
• Features built-in current sharing control to facilitate parallel power module operation and system flexibility.
• Includes fault spreading protection to prevent channel overload during system faults or phase failures.
• Provides undervoltage fault protection to eliminate negative transients on the output voltage during shutdown.

DC DC Switching Controllers Applications

• Power supplies for datacom and telecom systems
• Point-of-load (POL) paralleling power modules
• Wide and narrow input voltage range buck regulators

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level (MSL 3) requirements for storage and handling. Ensure design compatibility with existing thermal management solutions given the QFN-EP package constraints. Review official discontinuance notifications for transition timelines and last-time buy options.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring flexible dual-phase or independent dual-output configurations. Consider its integrated driver capability to reduce external component count. Evaluate the adjustable switching frequency range against electromagnetic interference requirements. Verify that the input voltage range aligns with the system's power rail specifications.

DC DC Switching Controllers Part Context

The ISL8126 belongs to the ISL8126 series of scalable power controllers designed for high-efficiency DC-DC conversion. It is part of Renesas' portfolio of power management integrated circuits aimed at improving system density and performance in computing and communication infrastructure.

DC DC Switching Controllers Replacement Considerations

Check for direct pin-compatible substitutes within the same family. Consult manufacturer documentation for updated components replacing discontinued parts. Verify functional equivalence regarding control topology and drive strength before implementation.