ISL9307IRTAANLZ-T

Overview

The ISL9307IRTAANLZ-T is a Renesas PMIC featuring four outputs: two synchronous buck converters and two LDOs. It operates with an input voltage range of 1.5V to 5.5V. The switching frequency is 3MHz. Output 1 and 2 provide up to 1.5A each with adjustable voltages from 0.8V to 5.5V. Outputs 3 and 4 are fixed at 2.8V with 300mA capability. It uses a 16-TQFN (4x4) package.

Feature Summary

• Integrates dual synchronous buck regulators and dual low-dropout linear regulators in a single compact package.
• Supports wide input voltage ranges allowing direct connection to various system power sources.
• Features high-frequency switching operation to minimize external component size.

Applications

• Portable electronic devices requiring multiple regulated voltage rails
• Embedded systems with mixed analog and digital power requirements
• Battery-powered equipment utilizing integrated power management

Procurement Notes

Verify the exact suffix for the required package and temperature grade, as variations exist within the ISL9307 family. Confirm availability status, as this specific part number may be discontinued or subject to limited supply constraints. Ensure compatibility with existing PCB footprints before procurement.

Selection Notes

Select this component when a compact solution combining both switching and linear regulation is required. It is suitable for applications needing high current from buck stages and clean power from LDOs. Verify that the 3MHz switching frequency aligns with EMI requirements and inductor selection constraints.

Part Context

This device belongs to the ISL9307 series of integrated power management units designed for space-constrained applications. It consolidates multiple power functions into a single chip, reducing board area compared to discrete solutions. The series targets portable electronics and embedded systems.

Replacement Considerations

Check for active equivalents such as ISL9307IRTAAJBZ-T7A or ISL9307IRTAAJLZ-T7A. Verify pin compatibility and electrical specifications before substitution. Note that some variants may have different package options or thermal characteristics.

FAQ

What is the maximum output current for the synchronous buck regulators?

Each of the two synchronous buck regulators can deliver up to 1.5A.

Are the LDO outputs adjustable?

No, the two LDO outputs are fixed at 2.8V.