ISL9011AIRFCZ-T

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

The ISL9011AIRFCZ-T is a dual low-dropout (LDO) voltage regulator manufactured by Renesas Electronics Corporation. It integrates two independent LDO channels within a single package, providing fixed output voltages of 5V and 1.8V. Channel 1 delivers up to 150mA, while Channel 2 supports up to 300mA. The device operates with an input voltage range of 2.3V to 6.5V and features a typical quiescent current of 45µA. It includes a reference bypass pin for noise filtering, achieving low output noise of 30µVRMS and high power supply rejection ratio (PSRR). The component is housed in a 10-lead DFN package measuring 3mm x 3mm.

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

• Integrates two high-performance LDOs with separate enable pins and soft-start functionality
• Provides high PSRR and low output noise suitable for sensitive analog circuits
• Includes comprehensive protection features such as current limit, overheat protection, and UVLO

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

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

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

Verify the specific suffix 'T' indicates tape-and-reel packaging versus tube variants. Confirm the fixed output voltage combination matches system requirements, as other suffixes denote different voltage pairs. Check manufacturer status for obsolescence or lifecycle changes before finalizing procurement plans.

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

Select this component when a compact dual-output solution is required for battery-powered portable electronics. Ensure the load current does not exceed 150mA for the first channel or 300mA for the second. Verify that the application benefits from the integrated soft-start and low noise characteristics provided by the reference bypass capability.

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

This part belongs to the ISL9011A series of dual LDO regulators designed for space-constrained applications. It is pin-compatible with competitors like the Micrel MIC2211. The device is RoHS compliant and lead-free, adhering to environmental standards for modern electronic manufacturing.

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

The datasheet explicitly states pin compatibility with the Micrel MIC2211. Verify functional equivalence regarding output voltage accuracy and transient response before substitution.