ISL9003AIRUCZ-T

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

The ISL9003AIRUCZ-T is a low-dropout linear regulator manufactured by Intersil, now part of Renesas Electronics. It provides a fixed 1.8V output with a maximum load current of 150mA. The device operates within an input voltage range of 2.3V to 6.5V and features a typical dropout voltage of 200mV at full load. It is housed in a compact 6-pin uTDFN package (1.6mm x 1.6mm) suitable for space-constrained designs. The component supports an operating temperature range from -40°C to +85°C and includes internal protection mechanisms such as thermal shutdown and current limiting.

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

• Fixed 1.8V output voltage option within the ISL9003A series
• Compact 6-pin uTDFN surface-mount package design
• Integrated thermal shutdown and current limit protection
• Low standby current consumption for battery-powered applications

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

• Portable handheld devices requiring stable low-voltage rails
• Battery-operated consumer electronics
• Embedded systems with strict space limitations

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

Verify the specific suffix 'AIRUCZ-T' against official Renesas/Intersil documentation to confirm the fixed 1.8V output variant and tape-and-reel packaging configuration. Ensure compatibility with the required 6-pin uTDFN footprint during PCB layout. Confirm end-of-life status or obsolescence notices prior to final design approval, as this component may be discontinued.

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

Select this component when a fixed 1.8V supply is required with moderate current demands up to 150mA. The uTDFN-6 package offers a small form factor ideal for dense layouts. Consider the dropout voltage characteristics relative to the minimum input voltage available in the system. Verify that the thermal performance meets the application's ambient temperature requirements without additional heatsinking.

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

The ISL9003A series consists of low-quiescent-current LDO regulators designed for portable applications. This specific part represents one voltage variant within the family, distinguished by its fixed output setting and specific package type. It shares common architectural features with other members of the series, including similar pinouts and protection circuits, differing primarily in output voltage and packaging options.

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

Check for direct cross-reference part numbers from Renesas or compatible manufacturers offering identical 1.8V output, 150mA capability, and uTDFN-6 packaging. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution.