ISL9021IRURZ-T

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The ISL9021IRURZ-T is a fixed-output low-dropout (LDO) linear voltage regulator manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 2.6 V with a maximum continuous output current of 3 A. The device operates within an input voltage range of 1.5 V to 5.5 V and features a typical dropout voltage of 150 mV, with a maximum specified at 250 mV. It utilizes a 6-lead UTDFN surface-mount package and supports operation across a temperature range from -40°C to +85°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• High-current capability delivering up to 3 A output for demanding power rails
• Low noise architecture designed for sensitive analog and RF circuitry
• Integrated reverse current protection to prevent backflow in WLCSP and µTDFN packages

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Powering high-current digital logic families requiring stable voltage rails
• Supplying power to RF front-end modules and wireless communication interfaces
• Biasing operational amplifiers and precision analog signal processing circuits

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to the presence of counterfeits in the market. Confirm that the specific suffix matches the required output voltage and package type, as variations exist within the series. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Check for end-of-life status or alternative sourcing requirements given potential discontinuation trends in legacy PMIC lines.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 2.6 V rail is required with significant current capacity exceeding standard 250 mA LDOs. Evaluate thermal dissipation capabilities based on the input-to-output voltage differential and ambient operating conditions. Consider the UTDFN package footprint constraints against available PCB real estate. Verify that the input supply remains within the 1.5 V to 5.5 V window under all transient load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the ISL9021 family of single-channel LDO regulators known for combining high output current with low quiescent current and low noise performance. The series offers various fixed output voltages and packaging options, including WLCSP and µTDFN, catering to space-constrained portable and industrial electronics. It serves as a key power management solution for systems requiring clean, stable power delivery.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include other ISL9021 variants with different fixed output voltages such as ISL9021AIRUNZ-T (3.3 V) or ISL9021IIMZ-T (3.0 V), provided the system design accommodates the voltage difference. Cross-referencing pinouts and thermal characteristics is essential when considering non-family alternatives.