ISL8002IRZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL8002IRZ-T is a monolithic synchronous step-down DC/DC converter manufactured by Renesas Electronics Corporation. It delivers up to 2A of continuous output current from an input supply ranging from 2.7V to 5.5V. The device utilizes peak current mode control architecture, enabling very low duty cycle operation and superior transient response. It operates at a fixed switching frequency of 1MHz, which allows for the use of small inductors. The output voltage is adjustable from 0.6V to 5.5V. Integrated into the package are very low rDS(ON) MOSFETs to maximize efficiency. The high-side MOSFET is a PMOS type, eliminating the need for a bootstrap capacitor.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates very low rDS(ON) MOSFETs to maximize efficiency
• Uses peak current mode control architecture for superior transient response
• High-side PMOS eliminates the need for a bootstrap capacitor
• Operates at 1MHz switching frequency allowing for small inductor usage

Voltage Regulators - DC DC Switching Regulators Applications

• Printers: Power sequencers and I/O expanders for PPC or MFP printers
• Client devices: High-speed 5G to Wi-Fi converters using dual-band 4T4R Wi-Fi 6
• EV chargers: Wall-mounted charging boxes with IoT connectivity and advanced metering

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'IRZ' confirms the 1MHz switching frequency variant, as other suffixes like 'AIRZ' indicate 2MHz versions. Confirm the package is 8-WFDFN (2x2mm) with exposed pad. Check RoHS compliance status via official datasheet. Ensure ESD handling procedures are followed due to moisture sensitivity classification. Validate that the application circuit matches the internal compensation requirements specified for this frequency.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 1MHz switching frequency is required for the design. It is suitable for applications needing up to 2A output current from a 2.7V to 5.5V input range. The PMOS high-side switch simplifies the external component count by removing the bootstrap capacitor requirement. Consider thermal performance given the compact 2x2mm TDFN package if operating near maximum load currents.

Voltage Regulators - DC DC Switching Regulators Part Context

The ISL8002 series includes variants such as ISL8002, ISL8002A, ISL80019, and ISL80019A. These are highly efficient, monolithic, synchronous step-down DC/DC converters. The series offers selectable PFM or PWM operation options for light load efficiency. They provide both internal and external compensation options for stability. The complete converter occupies less than 0.10 square inches of board area.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

ISL8002AIRZ-T is a compatible substitute within the same family but operates at a 2MHz switching frequency instead of 1MHz. Designers must verify that the inductor selection and compensation network are appropriate for the higher frequency. Other series members like ISL80019 share similar features but may have different electrical characteristics or pinouts.