IRU1030-33CT

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

The IRU1030-33CT is a low dropout (LDO) positive adjustable linear voltage regulator manufactured by Infineon Technologies. It belongs to the OPTIREG™ linear post regulators portfolio, designed for automotive electronic control units (ECUs). The device provides a minimum output current capability of 3A with ultra-low dropout voltage characteristics. It features high power supply ripple rejection and low noise performance, making it suitable for sensitive analog loads. The component operates within an input voltage range of 2.3V to 20V and delivers a fixed 3.3V output. It is housed in a 3-Pin (2+Tab) Ultra Thin-PAK package, optimized for space-constrained applications requiring efficient post-regulation.

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

• Ultra-low dropout voltage design for efficient post-regulation
• High power supply ripple rejection for clean output
• Low noise performance suitable for sensitive electronics
• Minimum 3A output current capability

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

• Automotive ECU power supplies
• Post-regulation for switching converters
• Low noise analog circuit powering

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

Verify the specific suffix '33CT' against official Infineon documentation to confirm the fixed 3.3V output variant and tape-and-reel packaging configuration. Ensure compatibility with the specified Ultra Thin-PAK footprint and thermal requirements during integration. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

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

Select this component when a stable 3.3V rail is required from a variable input source between 2.3V and 20V. It is appropriate for designs needing minimal voltage drop across the regulator while supporting up to 3A load currents. Consider its low noise profile if powering RF or precision analog sections downstream of a primary switching regulator stage.

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

This device is part of Infineon's OPTIREG™ linear post regulators family, which targets automotive ECU applications. These regulators are engineered to complement switchers by providing clean, stable voltage rails. The series emphasizes small footprints and high efficiency, addressing the need for compact power solutions in modern vehicle electronics and industrial systems.

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

Consult official Infineon cross-reference guides for verified substitutes. Generic LDO replacements may not match the specific dropout voltage, ripple rejection, or automotive qualification standards required for this application.