ISL8540IVEZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL8540IVEZ-T is a high-efficiency synchronous step-down switching regulator manufactured by Renesas Electronics (formerly Intersil). It operates with an input voltage range of 9 V to 40 V and delivers up to 2 A of output current. The device features a fixed switching frequency range of 100 kHz to 600 kHz and provides an adjustable output voltage from 1.21 V to 35 V. It is housed in a 20-lead TSSOP package with an exposed pad for thermal management. The component supports operation temperatures from -40°C to +125°C and utilizes voltage-mode control architecture.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology for enhanced efficiency
• Wide input voltage capability suitable for industrial supplies
• Integrated power MOSFETs for compact design
• Thermal performance optimized via exposed pad package

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Telecommunications equipment power distribution
• Embedded systems requiring stable 5V or 12V rails
• Battery-powered devices with wide input ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration. Confirm RoHS compliance status through official datasheets as manufacturing sites may vary. Check for End-of-Life (EOL) notifications from Renesas, as this part number has been identified as discontinued in public distributor records. Ensure alternate sources are qualified before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring a robust 2A synchronous buck converter with a wide 9V-40V input range. The 100kHz-600kHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. The 20-TSSOP package is suitable for applications where board space is limited but thermal dissipation remains a priority due to the exposed pad design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL8540 series of high-performance synchronous step-down regulators. The series was originally developed by Intersil and later integrated into Renesas Electronics' portfolio following corporate acquisition. These regulators are designed to replace linear regulators in high-power density applications, offering superior efficiency and reduced heat generation in industrial and telecom environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers were not found in the provided source material. Users should consult Renesas official documentation for current recommended replacements or cross-reference compatible synchronous buck regulators with similar 2A output and 40V maximum input ratings.