ISL6440IAZ-TK

DC DC Switching Controllers Overview

The ISL6440IAZ-TK is a dual PWM controller with an integrated linear controller, manufactured by Renesas Electronics Corporation. It operates at a switching frequency of 300 kHz and supports a maximum duty cycle of 93%. The device features two outputs with a supply voltage range of 4.5 V to 24 V. It includes control characteristics such as enable, phase control, power good, and soft start. The component is housed in a 24-QSOP package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual PWM controller architecture with integrated linear controller for multi-rail power management
• Supports synchronous rectification with configurable phase control capabilities
• Includes built-in protection and control features such as soft start and power good signaling

DC DC Switching Controllers Applications

• Industrial controls requiring multi-voltage rail regulation
• Telecommunications infrastructure power supplies
• Embedded systems needing synchronized buck conversion

DC DC Switching Controllers Procurement Notes

Verify the exact suffix compatibility when sourcing replacements, as the TK designation indicates specific packaging or annealing variations. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check current availability status as this component may be discontinued or subject to limited supply constraints.

DC DC Switching Controllers Selection Notes

Select this component for designs requiring dual synchronous buck converters with a shared clock source. Ensure the input voltage range aligns with your system's power distribution network. Consider the thermal performance of the QSOP package and verify that the 300 kHz switching frequency meets your electromagnetic interference requirements.

DC DC Switching Controllers Part Context

This part belongs to the ISL6440 series of power management ICs from Renesas. It is designed for applications requiring efficient DC-DC conversion with precise timing control. The series typically integrates multiple regulators into a single package to reduce board space and component count.

DC DC Switching Controllers Replacement Considerations

ISL81802FRTZ-T is listed as a potential substitute. Verify pinout compatibility and electrical parameter alignment before implementation.