ILC7081AIM528X

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

The ILC7081AIM528X is a Micropower Dual Low Dropout (LDO) linear regulator manufactured by Fairchild Semiconductor. It integrates two independent 150mA CMOS LDO regulators within a single compact package, designed for RF and sensitive analog applications requiring low noise and high power supply rejection ratio (PSRR). The device operates with an input voltage range of 2.98V to 9V and delivers fixed output voltages. Key electrical characteristics include a maximum dropout voltage of 0.18V at full load and a typical quiescent current that supports micropower operation. The component is housed in an MSOP or VSSOP/TSSOP-8 surface-mount package, suitable for space-constrained portable electronics.

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

• Dual independent regulator configuration providing two separate regulated outputs from a single package
• Micropower CMOS architecture optimized for low quiescent current consumption
• Low dropout voltage performance ensuring efficient regulation near the input rail
• High Power Supply Rejection Ratio (PSRR) suitable for RF and noise-sensitive circuits

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

• RF front-end power supply conditioning
• Portable battery-powered devices requiring dual voltage rails
• Noise-sensitive analog circuit biasing
• Wireless communication modules

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

Verify the specific suffix 'M528X' against the manufacturer's official datasheet to confirm pinout compatibility and tape-and-reel specifications. Ensure the ordering part number matches the exact package variant (MSOP/VSSOP) required for your PCB footprint. Cross-reference with ON Semiconductor documentation as Fairchild's semiconductor division was acquired, confirming current manufacturing status and availability through authorized distributors.

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

Select this component when a design requires two isolated low-noise voltage rails from a single IC to save board space and reduce BOM count. It is appropriate for systems where input voltages vary between 3V and 9V and output currents up to 150mA are needed per channel. Consider thermal dissipation capabilities if operating near maximum current limits, and verify that the required output voltage options match the available fixed variants in the ILC7081 series.

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

The ILC7081 belongs to Fairchild's Micropower Dual LDO family, which targets applications demanding high PSRR and low noise. This series complements other single-channel LDOs like the ILC7083 by offering dual functionality in a small outline package. The device represents the company's focus on integrating power management solutions for mobile and RF applications, leveraging CMOS technology for efficiency.

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

Check for direct cross-reference part numbers from ON Semiconductor, such as the ILC7081AIZ2828X or similar suffixes indicating identical electrical characteristics and pinouts. Verify package dimensions and thermal properties before substitution.