ISL9307IRTAANFZ-T

Overview

The ISL9307IRTAANFZ-T7A is a quad-output power management IC featuring two synchronous buck converters and two low-dropout regulators. It operates within an input voltage range of 1.5V to 5.5V, delivering up to 1.5A per buck channel and 300mA per LDO channel. The device utilizes a 3MHz switching frequency for efficient power conversion. Outputs include adjustable buck rails and fixed LDO voltages such as 2.5V and 2.8V. It is housed in a 16-pin TQFN package with an exposed pad for thermal dissipation.

Feature Summary

• Integrates dual synchronous buck converters and dual linear regulators in a single compact package
• Supports wide input voltage range from 1.5V to 5.5V for flexible system power architectures
• Features high-frequency 3MHz switching operation to minimize external component size

Applications

• Portable consumer electronics requiring multi-rail power distribution
• Mobile communication devices needing efficient step-down regulation
• Embedded systems utilizing mixed analog and digital power domains

Procurement Notes

Verify the specific suffix configuration against official Renesas documentation, as variations exist within the ISL9307 family. Confirm current availability status directly with authorized distributors, as this component may be subject to end-of-life notices or limited stock conditions. Ensure compliance with RoHS standards and moisture sensitivity levels prior to procurement.

Selection Notes

Select this component when designing systems requiring four distinct regulated outputs from a single power source. Consider the 1.5A output capability of the buck channels for moderate load applications. Evaluate the thermal performance requirements given the TQFN-EP-16 package constraints. Verify that the 3MHz switching frequency aligns with electromagnetic interference (EMI) constraints and available passive component values.

Part Context

This part belongs to the ISL9307 series of integrated power management solutions designed for space-constrained applications. It consolidates multiple voltage regulation functions into one footprint, reducing board area compared to discrete solutions. The series targets markets demanding high efficiency and reliable power delivery for portable and industrial electronic devices.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include ISL9307IRTAAJBZ-T7A and ISL9307IRTAAJLZ-T7A. These alternatives offer similar electrical characteristics and pin configurations. Verify functional compatibility and package dimensions before implementation.