ISL8117FRZ-T

DC DC Switching Controllers Overview

The ISL8117FRZ-T is a synchronous buck PWM controller from the Renesas ISL8117 series, designed for industrial point-of-load and general-purpose applications. It operates with an input voltage range of 4.5V to 60V and supports output voltages from 0.6V to 54V. The device delivers up to 30A output current with a programmable switching frequency between 100kHz and 2MHz. It utilizes valley current mode control and features diode emulation for improved light-load efficiency. The component is housed in a 16-lead QFN package (4.0x4.0mm) and functions within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Valley current mode control minimizes external component count while maintaining robust performance across varying load conditions.
• Diode emulation mode with pulse-skipping functionality significantly reduces standby power consumption during light loads.
• Integrated lossless overcurrent protection eliminates the need for external current sensing resistors by utilizing MOSFET RDS(ON).
• Programmable soft-start and enable features facilitate precise power rail sequencing and pre-biased load support.

DC DC Switching Controllers Applications

• Industrial point-of-load (POL) voltage regulation
• General-purpose DC-DC conversion systems
• USB-C and USB Power Delivery (PD) power supplies

DC DC Switching Controllers Procurement Notes

Verify that the suffix 'FRZ-T' corresponds to the specific reel packaging configuration required for automated assembly processes. Confirm that the moisture sensitivity level and lead-free status align with your facility's reflow soldering profiles and environmental compliance standards. Ensure the supplier provides valid traceability documentation for the Renesas Electronics Corporation origin.

DC DC Switching Controllers Selection Notes

Select this controller when a wide input voltage range up to 60V is required alongside high output current capabilities. It is suitable for designs prioritizing simplicity through internal compensation and minimal external components. Consider the 16-lead QFN package for space-constrained PCB layouts requiring efficient thermal dissipation via the exposed pad.

DC DC Switching Controllers Part Context

The ISL8117FRZ-T belongs to the ISL8117 family of synchronous step-down controllers manufactured by Renesas Electronics. This series is engineered for high-efficiency power management in demanding environments. The FRZ-T variant specifically denotes the tape-and-reel delivery format, distinguishing it from tray-packaged equivalents like the ISL8117AFRZ.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Renesas cross-reference guides or contact technical support for validated alternatives if supply constraints exist.