ISL9011AIRNFZ

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

The ISL9011AIRNFZ is a dual low-dropout (LDO) linear voltage regulator manufactured by Renesas Electronics Corporation. It features two independent output channels with fixed voltages of 2.5V and 3.3V, delivering maximum output currents of 150mA and 300mA respectively. The device operates within an input voltage range of 2.3V to 6.5V and maintains a typical dropout voltage of 250mV at full load. Key electrical specifications include a quiescent current of 40µA, output voltage accuracy of ±1.8%, and a noise level of 30µVRMS from 10Hz to 100kHz. It is housed in a 10-lead DFN package measuring 3.0mm x 3.0mm.

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

• Dual-channel architecture providing independent 2.5V and 3.3V outputs for multi-rail power distribution
• Ultra-low noise performance suitable for sensitive analog and RF circuitry applications
• Integrated enable/shutdown control pin for precise power sequencing and energy management
• Comprehensive protection mechanisms including overcurrent, thermal overload, soft-start, and undervoltage lockout

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

• Portable electronic devices requiring efficient multi-voltage regulation
• Wireless communication modules needing low-noise power supplies
• Embedded systems utilizing mixed-signal processing components
• Battery-powered equipment demanding extended operational life through low quiescent current

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

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance and lead-free plating specifications against project requirements. Validate package dimensions and pinout compatibility during PCB layout finalization. Ensure storage conditions adhere to moisture sensitivity level guidelines to prevent soldering defects upon reflow.

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

Select this component when simultaneous 2.5V and 3.3V rails are required within a compact footprint. Evaluate the 150mA/300mA current split against total system load demands. Consider the 2.3V minimum input voltage constraint relative to battery discharge curves. Assess thermal dissipation capabilities based on ambient temperature and PCB copper area availability for heat spreading.

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

This device belongs to the ISL9011A series of dual LDO regulators designed for space-constrained portable electronics. It succeeds earlier Intersil designs under the Renesas portfolio, maintaining compatibility with established form factors while offering optimized noise and efficiency characteristics for modern low-power applications.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference data directly with Renesas technical support or authorized distributor catalogs for equivalent dual-output LDO solutions.