ISL6442IA-TK

Overview

The ISL6442IA-TK is a triple-output power management IC featuring two synchronous buck PWM controllers and one linear regulator. It operates with an input voltage range of 4.5V to 5.5V and supports switching frequencies from 300kHz to 2.55MHz. The device provides three outputs within a 24-QSOP package, designed for broadband, DSL, and networking applications.

Feature Summary

• Integrates dual synchronous buck PWM controllers and one linear controller in a single package
• Reduces input voltage ripple and total RMS input current through synchronized 180-degree out-of-phase operation
• Includes complete control, monitoring, and protection functions

Applications

• Broadband infrastructure systems
• DSL equipment power solutions
• Networking application power management

Procurement Notes

Verify the exact suffix configuration against official Renesas documentation, as the provided model includes a TK designation which may indicate specific tape-and-reel packaging or annealing requirements distinct from standard variants. Confirm end-of-life status and availability of qualified replacements prior to finalizing design-in decisions.

Selection Notes

Select this component when a compact solution for low-voltage (5V) multi-rail systems is required. The integrated dual-buck topology with phase-shifted operation is optimal for minimizing input capacitor size and reducing electromagnetic interference in dense networking hardware designs.

Part Context

This part belongs to the ISL6442 series of high-performance triple output controllers manufactured by Renesas Electronics. It is specifically engineered to provide efficient power conversion for communication infrastructure, combining switching and linear regulation capabilities to meet strict efficiency and footprint constraints.

Replacement Considerations

ISL81802FRTZ-T is listed as a substitute for related discontinued models in the series.