ISL6720AARZ-T

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The ISL6720AARZ-T is a triple linear bias supply IC from Renesas Electronics, designed for telecom and datacom applications. It features three outputs: an adjustable VIO (0V-20V, 125mA) with back-bias capability, a switched regulated VSW (0V-15V, 50mA), and a fixed continuous VCONT (5V, 25mA). The device supports a maximum input voltage of 100V and operates within a temperature range of -40°C to +105°C. Packaged in an 11-DFN (4x4mm) with exposed pad, it includes enable control and over-temperature protection.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Provides three distinct output channels including an adjustable auxiliary winding regulator capable of handling back-bias from external sources.
• Features a delayed start mechanism for the VIO and VSW outputs relative to the continuous VCONT output to manage startup sequences.
• Incorporates two-stage over-temperature protection and meets IPC2221A creepage and clearance spacing requirements.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Telecom and Datacom DC/DC converters
• Low power bias supplies
• Start-up regulators for power supplies

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'T' against the official datasheet to confirm tape-and-reel packaging versus tube, as standard listings may vary. Confirm RoHS3 compliance status and check for End-of-Life notices or Product Change Notices affecting availability. Ensure the 11-DFN package dimensions match your PCB footprint requirements.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a high-voltage input linear regulator is needed to generate multiple low-voltage rails from distributed intermediate voltages. The adjustable VIO output allows flexibility for different gate drive requirements. Consider the thermal performance in the DFN package if operating near the maximum current limits.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The ISL6720A is part of Renesas's PMIC portfolio, originally developed by Intersil. It serves as a cost-effective solution for generating bias supplies in systems requiring isolation or high input voltage tolerance. The device simplifies design by integrating multiple regulator functions into a single compact package.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Check for direct pin-to-pin replacements within the ISL6720 family variants. Verify functional equivalence for the switched and unswitched output configurations before substitution.