ISL6540ACRZ-T

DC DC Switching Controllers Overview

The ISL6540ACRZ-T is a synchronous PWM buck controller from the ISL6540A series, manufactured by Renesas Electronics. It operates with an input voltage range of 3V to 20V and supports a switching frequency between 250 kHz and 2 MHz. The device provides one output channel capable of delivering up to 4 A of current, with an adjustable output voltage range from 600 mV to 20 V. It features a maximum duty cycle of 100% and functions within a temperature range of -40°C to +85°C. The component is housed in a 28-VFQFN package with an exposed pad.

DC DC Switching Controllers Feature Summary

• Supports high-frequency operation with adjustable switching rates up to 2 MHz for compact passive design.
• Enables full load regulation through 100% maximum duty cycle capability.
• Integrates comprehensive protection and control features including current limiting, soft start, and power good indication.

DC DC Switching Controllers Applications

• Industrial control systems
• Point-of-load (POL) voltage regulation
• General purpose DC-DC conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'CRZ' against the official datasheet to confirm it denotes the commercial temperature grade (-40°C to +85°C) and lead-free RoHS compliance. Confirm that the 'T' suffix indicates tape and reel packaging if required for automated assembly. Check for End-of-Life (EOL) status or last-time buy notices as availability may be restricted.

DC DC Switching Controllers Selection Notes

Select this component when a single-phase synchronous buck solution is required with wide input voltage flexibility. It is suitable for designs needing precise voltage adjustment down to low levels. Ensure the thermal performance of the 28-QFN package meets the system's heat dissipation requirements at the target load current.

DC DC Switching Controllers Part Context

This part belongs to the ISL6540A family of synchronous PWM controllers designed for efficient power management. It serves as a core control element in DC-DC converter topologies, driving external N-channel MOSFETs. The series is characterized by its ability to operate efficiently across a broad range of input and output conditions.

DC DC Switching Controllers Replacement Considerations

Check for direct pin-compatible upgrades within the ISL6540A series or newer generations from Renesas. Verify electrical parameter compatibility, specifically switching frequency ranges and output current capabilities, before substituting.