ISL9011IRMMZ

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

The ISL9011IRMMZ is a dual low-dropout (LDO) linear voltage regulator manufactured by Intersil, now part of Renesas Electronics. It features two independent output channels capable of sourcing 150 mA from Channel 1 and 300 mA from Channel 2. The device operates with an input voltage range of 2.3 V to 6.5 V and provides fixed output voltages, such as 3.0 V/3.0 V or 2.8 V/1.5 V depending on the specific suffix variant. It exhibits a typical quiescent current of 45 µA and maintains stability with output capacitance between 1 µF and 10 µF. The component is housed in a compact 10-lead DFN (3x3 mm) package.

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

• Dual-channel architecture providing independent regulation for separate power rails
• High power supply rejection ratio (PSRR) suitable for noise-sensitive applications
• Low standby current consumption for extended battery life in portable devices
• Integrated reference bypass pin allows external capacitor connection for optimized noise filtering

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

• Portable electronic devices requiring multiple stable voltage rails
• Battery-powered systems prioritizing low quiescent current
• Noise-sensitive analog circuits requiring high PSRR
• Embedded systems utilizing 3V or 1.5V logic levels

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

Verify exact output voltage combinations and current ratings against the specific datasheet revision, as suffixes denote different fixed output configurations. Confirm package type compatibility during integration. Note that this component may be subject to end-of-life status or limited availability due to its age; check current manufacturer distribution channels for active stock or qualified replacement alternatives before finalizing design specifications.

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

Select this component when designing circuits requiring two distinct regulated outputs from a single IC footprint. Ensure the load current requirements do not exceed 150 mA for the first channel and 300 mA for the second. Verify that the input voltage remains within the 2.3 V to 6.5 V operational window. Consider the thermal performance in the DFN package if operating near maximum current limits. Validate that the required output capacitance falls within the 1 µF to 10 µF range for guaranteed stability.

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

The ISL9011 series belongs to Intersil's portfolio of high-performance LDO regulators, later absorbed into Renesas Electronics. This family is characterized by low noise and high PSRR, targeting applications where power efficiency and signal integrity are critical. The IRMMZ suffix specifically identifies the lead-free, tape-and-reel packaging variant of the dual-output regulator, distinguishing it from tube-packaged versions like the IRNJZ.

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

Consult official Renesas documentation for confirmed cross-reference part numbers. Verify that any substitute matches the dual-output configuration, current capabilities, and DFN-10 package dimensions. Ensure electrical parameters such as dropout voltage and quiescent current remain compatible with the original design constraints.