ISL6545IRZ

DC DC Switching Controllers Overview

The ISL6545IRZ is a single synchronous buck pulse-width modulation (PWM) controller manufactured by Intersil. It supports step-down conversion with a switching frequency of 300kHz and achieves a maximum duty cycle of 100%. The device regulates output voltages ranging from 600mV to 5V, supporting load currents up to 25A. It operates within a temperature range of 0°C to +70°C and utilizes a SOIC-8 surface-mount package.

DC DC Switching Controllers Feature Summary

• Implements complete control and protection schemes for DC/DC step-down converters driving N-channel MOSFETs
• Provides single feedback loop voltage-mode control with fast transient response capabilities
• Integrates current limit and enable functions for enhanced system management

DC DC Switching Controllers Applications

• Single synchronous buck converter implementations
• Systems requiring precise low-voltage regulation down to 0.6V
• Applications utilizing N-channel MOSFET power stages

DC DC Switching Controllers Procurement Notes

Verify the obsolete status of this component before integration into new designs. Confirm that the specific suffix IRZ corresponds to the tube packaging format as indicated in distributor records. Ensure compatibility with existing PCB footprints for the SOIC-8 package. Review the official discontinuance notification for timeline details regarding availability and final orders.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring a fixed 300kHz switching frequency and 100% duty cycle operation. It is suitable for designs needing voltage-mode control with fast transient response. Verify that the input voltage requirements align with the controller's operational limits. Ensure the design can accommodate the thermal characteristics associated with the SOIC-8 package under maximum load conditions.

DC DC Switching Controllers Part Context

This component belongs to the ISL6545 family of power management ICs. It serves as a dedicated controller for synchronous buck converters, distinct from integrated power stage solutions. The device focuses on providing the necessary drive signals and protection logic for external high-side and low-side MOSFETs in efficient DC/DC conversion topologies.

DC DC Switching Controllers Replacement Considerations

Consult official documentation for qualified substitute part numbers. Verify pinout compatibility and electrical parameter alignment with potential replacements. Ensure that any alternative components support the required 300kHz frequency and 100% duty cycle specifications.