ISL6842IRZ

Power Supply Controllers, Monitors Overview

The ISL6842IRZ is a single-output switching controller from the ISL6842 series, manufactured by Renesas Electronics (formerly Intersil). It operates as a current mode PWM controller with a fixed switching frequency of 2 MHz and a maximum duty cycle of 96%. The device features an output voltage range up to 20.3 V and can drive loads with up to 1 A output current. It is designed for operation within a temperature range of -40°C to +105°C. The component is housed in a DFN EP package and is available in reel or cut tape packaging formats.

Power Supply Controllers, Monitors Feature Summary

• Current mode PWM control architecture for stable regulation
• High-frequency 2 MHz switching capability for compact design
• Wide input voltage operating range supporting diverse power applications

Power Supply Controllers, Monitors Applications

• Point-of-load DC-DC conversion modules
• Industrial power supply systems
• Telecommunications equipment power stages

Power Supply Controllers, Monitors Procurement Notes

Verify end-of-life status before procurement as the component may be discontinued. Confirm package type and revision level against original design specifications. Check for alternative sources if original manufacturing lines are closed. Ensure compatibility with existing PCB footprints and thermal management requirements during replacement planning.

Power Supply Controllers, Monitors Selection Notes

Select this controller for designs requiring high-frequency operation to minimize passive component size. Consider the 96% duty cycle limit when designing for low output voltage ratios. Evaluate thermal performance given the DFN EP package constraints. Verify that the 2 MHz frequency aligns with EMI requirements and inductor saturation characteristics.

Power Supply Controllers, Monitors Part Context

This part belongs to the ISL684x family of synchronous buck controllers. It shares architectural similarities with the ISL6841 but offers different duty cycle capabilities. The series is characterized by integrated gate drivers and protection features suitable for efficient power conversion in space-constrained environments.

Power Supply Controllers, Monitors Replacement Considerations

• ISL6842IBZ