ISL9001IRNZ-T

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

The ISL9001IRNZ-T is a single-output low dropout linear regulator manufactured by Renesas Electronics (formerly Intersil). It provides a fixed output voltage of 3.3V with a maximum output current of 300mA. The device operates within an input voltage range of 2.3V to 6.5V and features extremely low quiescent current, typically 25µA at no load, and 0.1µA in shutdown mode. It exhibits high power supply rejection ratio (PSRR) of 90dB at 1kHz and low output noise of typically 30µVrms. The regulator is stable with ceramic output capacitors ranging from 1µF to 10µF and includes built-in thermal overload and current limit protection.

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

• Ultra-low standby and shutdown currents for extended battery life in portable applications
• High PSRR and low output noise suitable for sensitive RF and wireless equipment
• Stable operation with small, cost-effective ceramic output capacitors
• Integrated thermal and current protection for robust system reliability

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

• Portable wireless communication devices
• Battery-powered sensor nodes
• RF front-end power supplies
• Low-noise analog circuit biasing

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

Verify the specific suffix 'IRNZ' against the manufacturer's official datasheet to confirm package type, temperature grade, and tape-and-reel specifications. Ensure compatibility with required output capacitance values for stability. Confirm RoHS compliance status as per the latest production data sheet before finalizing procurement orders.

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

Select this component when a fixed 3.3V output is required with minimal quiescent current consumption. It is suitable for applications demanding high PSRR and low noise without the complexity of switching regulators. Ensure the input voltage remains within the 2.3V to 6.5V range and that the load current does not exceed 300mA continuously.

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

This part belongs to the ISL9001 family of high-performance LDOs designed for low-power applications. It replaces older Intersil designs with improved noise performance and capacitor stability. The IRNZ suffix indicates a specific surface-mount package configuration and industrial temperature rating defined by the manufacturer.

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

Check for direct pin-compatible alternatives such as the ISL9001AIRNZ-T if higher temperature grades are needed. Verify functional equivalence with other Renesas LDOs offering similar 300mA output and 3.3V fixed voltage before substitution.