ISL9307IRTAANFZ-T7A

Overview

The ISL9307IRTAANFZ-T7A is a quad-output power management IC from the Renesas ISL9307 series, designed for portable applications. It integrates two synchronous buck converters and two low-dropout regulators (LDOs) in a single 16-pin TQFN package. The device operates with an input voltage range of 1.5 V to 5.5 V. The two DC/DC outputs provide adjustable voltages up to 1.5 A each, while the LDO outputs are fixed at 2.8 V with 300 mA capability. It features a high switching frequency of 3 MHz, enabling the use of small external components. The IC supports operation over an extended temperature range of -40°C to +85°C.

Feature Summary

• Integrates dual synchronous buck converters and dual LDOs for comprehensive power rail generation
• High-frequency 3 MHz switching operation minimizes passive component size
• Compact 16-pin TQFN package optimized for space-constrained portable designs

Applications

• Portable multimedia devices requiring multiple power rails
• Smartphones and tablets needing efficient battery-powered regulation
• Handheld computing devices with mixed analog and digital load requirements

Procurement Notes

Verify current availability status as this part number may be discontinued or subject to supply constraints. Confirm exact suffix specifications against official datasheets to ensure compatibility with design requirements. Check for authorized distributor channels and valid RoHS compliance documentation before procurement.

Selection Notes

Select this component when designing systems requiring four distinct regulated outputs from a single source. Ensure input voltage stays within 1.5 V to 5.5 V limits. Verify thermal performance in the chosen TQFN-EP-16 package under expected load conditions. Consider the 3 MHz frequency for board space optimization versus EMI sensitivity.

Part Context

This part belongs to the ISL9307 family of quad-output PMICs from Renesas Intersil. These ICs are engineered for portable electronics, combining switching regulators for efficiency with LDOs for noise-sensitive loads. The family typically shares core control logic but varies in output configurations and packaging options.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include ISL9307IRTAAJBZ-T7A and ISL9307IRTAAJLZ-T7A. Verify pinout and electrical specifications match before substitution.