ISL9005IRKZ-T

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

The ISL9005IRKZ-T is a fixed-output Low Dropout linear regulator providing a nominal 2.85V output. It supports a continuous load current of 300mA with an input voltage range of 2.3V to 6.5V. The device features a typical quiescent current of 50µA and a shutdown current of 0.1µA. It offers high power supply rejection ratio (PSRR) of 75dB at 1kHz and low output noise of 45µVRMS. Stability is maintained with output capacitance between 1µF and 10µF, including ceramic capacitors with ESR up to 200mΩ. The unit operates within a temperature range of -40°C to +85°C.

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

• Provides stable regulation for portable wireless equipment through ultra-low standby and shutdown currents.
• Ensures signal integrity via high PSRR and minimal output noise suitable for sensitive analog circuits.
• Integrates comprehensive protection mechanisms including soft-start, current limiting, and thermal shutdown.
• Delivers fast transient response and precise voltage accuracy across wide operating conditions.

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

• PDAs, cell phones and smart phones
• Portable instruments and MP3 players
• Handheld devices including medical handhelds

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

Verify the specific ordering suffix KZ corresponds to the required 2.85V output voltage before procurement. Confirm that the package type matches the 8-lead 2x3mm DFN footprint requirements for your PCB layout. Ensure compatibility with RoHS compliance standards if applicable to your manufacturing process. Check for any recommended replacement parts such as the ISL9005A series if new designs are being initiated.

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

Select this component when a fixed 2.85V rail is required with strict limits on quiescent current consumption. It is suitable for battery-powered applications where efficiency during idle states is critical. Ensure the application load does not exceed 300mA and that the input voltage remains within the specified 2.3V to 6.5V window. Verify that the output capacitor selection falls within the 1µF to 10µF range to maintain stability.

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

This part belongs to the ISL9005 family of high-performance LDOs manufactured by Renesas Electronics Corporation (formerly Intersil). The family includes various fixed voltage options ranging from 1.5V to 3.3V, all sharing similar electrical characteristics and package dimensions. The ISL9005IRKZ-T specifically denotes the 2.85V variant in tape and reel packaging.

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

The datasheet explicitly recommends the ISL9005A as the replacement part for new designs. Verify pinout compatibility and electrical specifications before substituting.