ISL9307IRTWCNJZ-T

Overview

The ISL9307IRTWCNJZ-T is a highly integrated quad voltage regulator PMIC designed for low-voltage microprocessors. It features two synchronous step-down converters with 1500mA output capability and two 300mA LDO regulators. The device operates within an input voltage range of 1.5V to 5.5V, supporting single-cell lithium-ion or lithium-polymer battery sources. It utilizes I2C communication for control and current mode regulation. The component is housed in a 16-pin TQFN package.

Feature Summary

• Integrates four independent output regulators including dual high-current buck converters and dual LDOs
• Supports I2C interface for digital control and monitoring
• Optimized for low quiescent current operation
• Designed for compact form factor applications using surface mount packaging

Applications

• Powering low-voltage microprocessors
• Battery-operated systems using single lithium-ion cells
• Battery-operated systems using single lithium-polymer cells
• Multi-rail power supply architectures for portable electronics

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging configuration when ordering. Confirm the exact thermal pad exposure requirements for the 16-WQFN package during PCB layout design. Ensure compatibility with the I2C address settings defined in the official datasheet. Check for any obsolescence notices from Renesas Electronics Corporation prior to finalizing procurement plans.

Selection Notes

Select this component when a compact solution is required for multiple voltage rails from a single cell source. Consider the 1500mA buck output limits for load requirements. Evaluate the 300mA LDO outputs for lower current needs. Verify that the 1.5V to 5.5V input range matches the system's power source characteristics. Assess the I2C interface availability on the target microcontroller.

Part Context

This part belongs to the ISL9307 family of mini-PMICs from Renesas Electronics. It is engineered specifically for applications requiring efficient power management in space-constrained environments. The integration of switching and linear regulators reduces external component count compared to discrete solutions. It serves as a centralized power management unit for complex embedded systems.

Replacement Considerations

Consult the official Renesas cross-reference documentation for verified substitute part numbers. Do not assume functional equivalence based solely on pinout compatibility. Verify electrical parameters against the original specification sheet before substitution.