ISL9001AIRFZ-T

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

The ISL9001AIRFZ-T is a single-output low dropout linear regulator manufactured by Renesas Electronics. It provides a fixed output voltage of 1.5V and supports an input voltage range from 2.3V to 6.5V. The device delivers a maximum output current of 300mA with a typical quiescent current of 25µA. It features high power supply rejection ratio (PSRR) of 90dB at 1kHz and low output noise of typically 30µVrms. The regulator operates within a temperature range of -40°C to +85°C and utilizes an 8-lead, 2mm x 3mm DFN package.

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

• High-performance LDO capable of sourcing 300mA current with excellent transient response
• Extremely low quiescent current of 25µA and 0.1µA shutdown current for portable applications
• High PSRR of 90dB at 1kHz and low output noise less than 30µVrms
• Stable with output capacitance of 1µF to 10µF ceramic capacitors

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

• Portable wireless equipment requiring low standby current
• Low-noise and high-PSRR applications utilizing reference bypass pin
• Battery-powered systems needing efficient voltage regulation

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

Verify the specific suffix 'RF' against official Renesas documentation to confirm package type and tape/reel specifications. Confirm availability status as some ISL9001 variants are marked as obsolete or end-of-life. Ensure compatibility with existing PCB footprint for the 8-lead DFN package before procurement.

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

Select this component when a fixed 1.5V output is required with minimal quiescent current consumption. It is suitable for designs prioritizing low noise and high PSRR in space-constrained environments due to its small DFN package. Verify that the load current does not exceed 300mA and that input voltage remains within the 2.3V to 6.5V range.

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

The ISL9001AIRFZ-T belongs to the ISL9001A series of single-output low dropout regulators. This series is designed for portable wireless equipment, offering a combination of low quiescent current, high PSRR, and low output noise. The device includes protection features such as current limit and overheat protection, along with a programmable delayed Power Good signal.

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

Check for direct substitutes within the ISL9001 family with different output voltages or packages. Verify if newer Renesas LDOs offer similar performance metrics if the ISL9001AIRFZ-T is discontinued. Ensure any replacement maintains the 8-lead DFN form factor or requires PCB redesign.