IRU1206-33CDTR Equivalent & Substitute Parts

Part Overview

The IRU1206-33CDTR is a linear voltage regulator IC manufactured by Infineon Technologies, designed to deliver a fixed 3.3V output at 1A maximum current. This device operates as a positive fixed output regulator in a TO-252-3 (DPAK) surface mount package. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. Substitute parts must maintain compatibility across output voltage, current capacity, package form factor, and thermal operating range.

Substiute Parts

IRU1206-33CDTR

Infineon TechnologiesIn Stock: 10197IRU1206-33CDTR Datasheet

Current PartRFQ

TLV2217-33KVURG3

Texas InstrumentsIn Stock: 1000143TLV2217-33KVURG3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IRU1206-33CDTR is determined by the following critical parameters:

• Fixed output voltage of 3.3V
• TO-252-3 (DPAK) package compatibility
• Operating temperature range of 0°C to 125°C
• Maximum input voltage of 12V
• Positive fixed output configuration

The substitute part TLV2217-33KVURG3 meets these core requirements. While the substitute exhibits a reduced maximum output current (500mA versus 1A), it maintains the same output voltage, package form factor, input voltage rating, and operating temperature range. The lower current capacity represents a functional constraint that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TLV2217-33KVURG3 serves as a functional substitute for the obsolete IRU1206-33CDTR when application current requirements do not exceed 500mA. The substitute maintains identical output voltage and package compatibility, enabling direct PCB placement without layout modifications.

Key considerations for selection:

• The substitute is classified as Last Time Buy, indicating limited future availability. Procurement planning should account for this status.
• The TLV2217-33KVURG3 achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. This distinction is relevant for applications subject to regulatory compliance requirements.
• The substitute includes over-voltage protection in addition to over-current and over-temperature protection, providing enhanced circuit protection.
• Output current capacity is reduced to 500mA. Applications requiring the full 1A output of the original part cannot use this substitute without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the TLV2217-33KVURG3 directly replace the IRU1206-33CDTR in all applications?

A: Direct replacement is possible only when the application current requirement does not exceed 500mA. If the design draws more than 500mA from the 3.3V output, the substitute will not function as intended. Circuit redesign or alternative component selection is required for higher current applications.

Q: Are the packages physically identical?

A: Both parts use the TO-252-3 (DPAK) package with identical pin configuration and footprint. No PCB layout changes are necessary for physical substitution.

Q: What is the significance of the product status difference?

A: The original IRU1206-33CDTR is obsolete and no longer manufactured. The TLV2217-33KVURG3 is classified as Last Time Buy, meaning Texas Instruments will cease production after a specified date. Both parts face availability constraints, and long-term procurement strategy should account for this limitation.

Q: Does the RoHS compliance difference affect substitution?

A: RoHS compliance is a regulatory and supply chain consideration rather than a functional parameter. The ROHS3-compliant substitute may be required for applications subject to environmental regulations or customer specifications that mandate RoHS compliance. The original non-compliant part may be restricted from certain markets or procurement channels.

Q: How do the protection features compare?

A: Both parts include over-current and over-temperature protection. The substitute adds over-voltage protection, which provides additional circuit safeguarding. This enhancement does not prevent substitution and may improve overall system reliability.

Q: What is the impact of the dropout voltage difference?

A: The substitute exhibits lower dropout voltage (0.5V @ 500mA versus 0.65V @ 1A). Lower dropout voltage improves efficiency and reduces heat dissipation. This represents a performance advantage of the substitute within its current rating.