ISL6721AB-T

DC DC Switching Controllers Overview

The ISL6721AB-T is a DC-DC switching controller IC manufactured by Renesas Electronics Corporation, designed for boost and flyback topologies. It operates within a supply voltage range of 9V to 18V and supports a maximum switching frequency of 1MHz. The device features a maximum duty cycle of 75% and includes integrated control characteristics such as current limiting, frequency control, power good indication, and soft start functionality. It is housed in a 16-SOIC package with a width of 3.90mm and is rated for an operating temperature range of -40°C to 105°C.

DC DC Switching Controllers Feature Summary

• Supports boost and flyback converter topologies with positive or isolated output configurations.
• Integrates clock synchronization capability for multi-phase or parallel system applications.
• Includes comprehensive protection and control features such as current limiting, soft start, and power good signaling.

DC DC Switching Controllers Applications

• Boost converter designs
• Flyback converter implementations
• Isolated power supply systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'T' against official Renesas documentation to confirm tape-and-reel packaging status, as standard listings may indicate tube packaging. Confirm component availability and obsolescence status directly with the manufacturer or authorized distributors, as this part number may be subject to discontinuation notices.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring synchronized operation in boost or flyback architectures. Ensure the design accommodates the 9V to 18V Vcc/Vdd supply range and the 16-SOIC thermal constraints. Verify that the required switching frequency does not exceed the 1MHz maximum limit and that the 75% duty cycle constraint aligns with the target voltage conversion ratio.

DC DC Switching Controllers Part Context

The ISL6721AB belongs to the ISL6721 family of DC-DC switch controllers from Renesas Electronics. This family targets efficient power management in industrial and commercial applications requiring flexible topology support. The AB variant specifically denotes the operational specifications and package configuration within this product line.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas Electronics for current cross-reference data or alternative components with compatible pinouts and electrical specifications.