ISL6401CRZ-T

DC DC Switching Controllers Overview

The ISL6401CRZ-T is a synchronous current mode PWM controller designed for Subscriber Line Interface Circuits (SLICs). It operates within an input supply range of 4.5V to 5.5V and supports switching frequencies from 50kHz to 500kHz. The device features a 16-lead MLFP package with dimensions of 4x4mm and functions as a boost or flyback regulator capable of positive, isolation-capable output step-up or step-down conversion.

DC DC Switching Controllers Feature Summary

• Synchronous current mode PWM control architecture
• Integrated boost and flyback regulator capabilities
• Isolation-capable positive output configuration

DC DC Switching Controllers Applications

• Subscriber Line Interface Circuit (SLIC) power management
• Telecommunications interface equipment
• Industrial embedded systems requiring isolated DC-DC conversion

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Renesas channels due to discontinuation status. Confirm package integrity and lead condition upon receipt. Cross-reference datasheet revisions to ensure compatibility with existing SLIC designs. Validate operating temperature ranges against specific application requirements before integration.

DC DC Switching Controllers Selection Notes

Evaluate thermal performance within the 16-lead MLFP package constraints. Ensure input voltage stability remains within the 4.5V to 5.5V specification. Consider switching frequency selection between 50kHz and 500kHz based on external inductor size and efficiency targets. Verify isolation requirements match the controller's output configuration capabilities.

DC DC Switching Controllers Part Context

Manufactured by Intersil, now part of Renesas Electronics following the 2016 acquisition. The ISL6401 series targets specialized telecommunications applications requiring precise current-mode control. This component represents a legacy solution for SLIC implementations prior to modern integrated transceiver solutions.

DC DC Switching Controllers Replacement Considerations

The ISL6401CRZ-T is listed as obsolete per PLC14003A notification. Consult Renesas Product Legacy Documents for officially confirmed substitute part numbers. Do not assume functional equivalence with generic controllers without verifying pinout and timing specifications.