ISL9307IRTWCWNZ-T

Overview

The ISL9307IRTWCWNZ-T is a Renesas integrated power management unit featuring two synchronous buck converters and two low-dropout regulators. It operates with a switching frequency of 3MHz and supports output currents up to 1500mA per converter. The device accepts an input voltage range up to 5.5V and includes an I2C communication interface for configuration. It functions in current mode control and maintains operation within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual high-efficiency step-down converters and dual low-input LDOs in a single micro-package
• Utilizes I2C digital interface for programmable control and monitoring of power rails
• Employs current mode control topology for stable regulation under varying load conditions

Applications

• Powering low-voltage microprocessors from single lithium-ion or lithium-polymer batteries
• Multi-rail power supply systems for portable electronic devices
• Embedded applications requiring compact integrated power management solutions

Procurement Notes

Verify the specific suffix WCWNZ against official Renesas documentation to confirm package type and tape-and-reel specifications. Confirm that the component status aligns with project requirements, as availability may vary. Ensure compatibility with existing PCB footprints and thermal management designs before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring four distinct regulated voltage rails from a single battery source. The 3MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the required output currents do not exceed the 1500mA limit per buck channel and that the input voltage remains within the specified maximum range.

Part Context

This part belongs to the Renesas ISL9307 family of mini-PMICs designed for space-constrained applications. It consolidates multiple power stages into one package to reduce board area. The series targets mobile and embedded markets where efficiency and size are critical constraints for battery-operated equipment.

Replacement Considerations

Check for direct pin-compatible substitutes within the Renesas portfolio. Verify that alternative parts maintain identical I2C addressing and register maps if software migration is not planned. Ensure thermal performance and current capabilities match the original design specifications.