ISL8009AIRZ-T

Voltage Regulators - DC DC Switching Regulators Overview

The ISL8009AIRZ-T is a synchronous buck regulator manufactured by Renesas Electronics Corporation, formerly Intersil. It features a fixed output voltage of 0.8 V and delivers a maximum output current of 1.5 A. The device operates with an input voltage range from 2.7 V to 5.5 V and utilizes a switching frequency of 1.6 MHz. It is housed in an 8-pin DFN package with an exposed pad (DFN8EP), measuring 2 mm x 3 mm x 1 mm. The component supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for improved efficiency
• Low quiescent current operation for power conservation
• Compact footprint suitable for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics
• Embedded systems requiring low-power regulation
• Battery-powered devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging configuration when sourcing. Confirm that the fixed 0.8 V output aligns with target load requirements, as adjustment is not possible. Ensure thermal management strategies account for the exposed pad design in the DFN8EP package to maintain reliability under load conditions specified in the official datasheet.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 0.8 V output is required rather than an adjustable variant like the ISL80019. Consider the 1.5 A current limit and 1.6 MHz frequency for noise-sensitive applications. The fixed output simplifies external component selection compared to adjustable regulators, reducing bill of materials complexity for standard logic supply rails.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ISL8009 series of low-current synchronous buck regulators. It shares architectural similarities with other members of the family but differs in output configuration, offering a fixed voltage instead of adjustable options found in parts like the ISL80019. The series targets portable applications requiring efficient step-down conversion from single-cell lithium-ion sources.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.