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ISL9003AIRUHZ-T is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Intersil. Its product description is IC REG LIN 2.75V 150MA 6-UTDFN. Review the specifications below when checking this part for your BOM.
The ISL9003AIRUHZ-T is a single-output low dropout regulator from the Intersil ISL9003A series, housed in a 6-lead µTDFN package. It delivers a continuous output current of 150 mA with a fixed output voltage of 1.5 V. The device operates within an input voltage range of 2.3 V to 6.5 V and maintains a typical dropout voltage of 200 mV at full load. It features extremely low quiescent current of 31 µA and high power supply rejection ratio exceeding 90 dB at 1 kHz. The unit ensures stable operation with ceramic capacitors between 1 µF and 4.7 µF and provides accuracy of ±1.8% across the operating temperature range of -40°C to +85°C.
Verify component authenticity through authorized channels due to potential availability constraints. Confirm package marking and datasheet revision alignment during intake inspection. Ensure proper ESD handling protocols are followed given the small form factor. Validate thermal performance under maximum load conditions prior to final assembly integration.
Select this component when a compact single-channel LDO with low noise and high PSRR is required. It is suitable for battery-powered systems where low quiescent current extends operational life. Choose this part over adjustable regulators if a fixed 1.5 V rail is needed. Consider the µTDFN package size constraints against available PCB real estate.
This component belongs to the ISL9003A family of low-noise LDOs designed for portable electronics. It complements other Intersil power management solutions by providing clean voltage rails for sensitive analog and RF circuits. The series emphasizes low standby current and fast transient response capabilities.
Public confirmed substitute part numbers: None identified.
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