ISL81401AFRZ-T

DC DC Switching Controllers Overview

The ISL81401AFRZ-T is a single-inductor four-switch synchronous buck-boost PWM controller manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 4.5V to 40V and supports output voltages from 0.8V to 40V. The device features a programmable switching frequency between 100kHz and 600kHz, with support for external clock synchronization. It provides bidirectional power flow control with independent regulation of voltage and current at both the input and output ports.

DC DC Switching Controllers Feature Summary

• Enables on-the-fly bidirectional operation with independent control of voltage and current on both ends
• Utilizes a proprietary algorithm for smoothest mode transition between buck and boost operations
• Integrates MOSFET drivers with adaptive shoot-through protection for reliable switching

DC DC Switching Controllers Applications

• USB Power Delivery (PD) adapters requiring dynamic voltage boosting
• Battery-powered systems with wide input/output voltage variations
• Bidirectional DC/DC conversion in energy storage applications

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'A' against official Renesas documentation to confirm if it denotes a distinct electrical specification or package variant compared to the standard ISL81401. Ensure compatibility with required thermal management solutions given the 32-QFN package. Confirm availability status as distribution data may vary.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring seamless transitions between buck and boost modes without interruption. It is suitable for applications needing precise current sharing in parallel configurations via cascade phase interleaving. Consider the 32-VFQFN package constraints for PCB layout and thermal dissipation requirements.

DC DC Switching Controllers Part Context

This part belongs to the ISL81401 family of high-voltage synchronous buck-boost controllers. It is designed for applications demanding high efficiency and compact size. The device integrates essential protection features including over-current, over-voltage, and thermal shutdown, ensuring robust performance in industrial and consumer power supplies.

DC DC Switching Controllers Replacement Considerations

The ISL81401FRZ-T7A is a related variant within the same product family. Verify pinout compatibility and electrical parameter alignment before substitution. Check for any differences in packaging or tape-and-reel specifications.