IRU1015CM Equivalent & Substitute Parts

Part Overview

The IRU1015CM is a linear voltage regulator IC from Infineon Technologies designed for positive adjustable output applications. It delivers 1.5A output current in a TO-263 surface mount package. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. This reference page identifies substitute components that maintain electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	IRU1015CM Value
Output Configuration	Positive
Output Type	Adjustable
Number of Regulators	1
Voltage - Input (Max)	7V
Voltage - Output (Min/Fixed)	2.5V
Voltage - Output (Max)	3.3V
Current - Output	1.5A
Voltage Dropout (Max)	1.3V @ 1.5A
Package / Case	TO-263-4, D2PAK (3 Leads + Tab)
Mounting Type	Surface Mount
Operating Temperature	0°C ~ 150°C
Protection Features	Over Current, Over Temperature

Substitute Part Grouping Explanation

Substitution of the IRU1015CM is determined by the following critical parameters:

Output configuration (positive adjustable)
Output current capability (1.5A minimum)
Package compatibility (TO-263 surface mount)
Voltage regulation range (minimum output ≤ 2.5V, maximum output ≥ 3.3V)
Dropout voltage performance (≤ 1.3V @ 1.5A)
Protection features (over current and over temperature)

The SPX2815AT-L/TR from MaxLinear, Inc. meets these substitution criteria. It provides positive adjustable output with 1.5A current capability in an identical TO-263 package. The device supports the required output voltage range and includes equivalent protection features.

Parameter Comparison

Parameter	IRU1015CM	SPX2815AT-L/TR	Compatibility
Manufacturer	Infineon Technologies	MaxLinear, Inc.	Different manufacturer
Output Configuration	Positive	Positive	Compatible
Output Type	Adjustable	Adjustable	Compatible
Current - Output	1.5A	1.5A	Compatible
Voltage - Input (Max)	7V	10V	SPX2815AT-L/TR exceeds requirement
Voltage - Output (Min/Fixed)	2.5V	1.25V	SPX2815AT-L/TR supports lower minimum
Voltage - Output (Max)	3.3V	15V	SPX2815AT-L/TR supports higher maximum
Voltage Dropout (Max)	1.3V @ 1.5A	1.2V @ 1.5A	SPX2815AT-L/TR performs better
PSRR	70dB (120Hz)	75dB (120Hz)	SPX2815AT-L/TR performs better
Protection Features	Over Current, Over Temperature	Over Current, Over Temperature	Compatible
Package / Case	TO-263-4, D2PAK (3 Leads + Tab)	TO-263-4, D2PAK (3 Leads + Tab)	Compatible
Mounting Type	Surface Mount	Surface Mount	Compatible
Operating Temperature	0°C ~ 150°C	-40°C ~ 125°C	Different ranges; verify application requirements
Product Status	Obsolete	Active	Substitute is in active production
RoHS Status	RoHS non-compliant	RoHS Compliant	SPX2815AT-L/TR meets RoHS requirements

Engineering Selection Recommendations

The SPX2815AT-L/TR is a direct functional substitute for the obsolete IRU1015CM. Both devices share identical output current capability, package form factor, and protection architecture. The SPX2815AT-L/TR offers performance improvements in dropout voltage and power supply rejection ratio while maintaining full electrical compatibility for the specified output voltage range of 2.5V to 3.3V.

The SPX2815AT-L/TR holds active product status and RoHS compliance certification, providing supply chain continuity and regulatory alignment. The device is available in tape and reel packaging suitable for automated assembly.

Operating temperature ranges differ between the two devices. The IRU1015CM operates from 0°C to 150°C, while the SPX2815AT-L/TR operates from -40°C to 125°C. Application-specific temperature requirements must be evaluated to confirm suitability for the intended use case.

Frequently Asked Questions (FAQ)

Q: Can the SPX2815AT-L/TR directly replace the IRU1015CM without circuit modifications?

A: Yes, for applications requiring output voltages between 2.5V and 3.3V. Both devices are positive adjustable regulators with 1.5A output current in identical TO-263 packages. Pin configuration and functional behavior are compatible. Verify that the application operating temperature range aligns with the SPX2815AT-L/TR specification (-40°C to 125°C).

Q: What are the key differences between these two parts?

A: The SPX2815AT-L/TR provides superior dropout voltage performance (1.2V vs. 1.3V @ 1.5A) and higher power supply rejection ratio (75dB vs. 70dB at 120Hz). It supports a wider input voltage range (10V vs. 7V maximum) and broader output voltage adjustment range (1.25V to 15V vs. 2.5V to 3.3V). The SPX2815AT-L/TR is RoHS compliant and in active production, while the IRU1015CM is obsolete and RoHS non-compliant.

Q: Are the packages identical?

A: Yes. Both devices use the TO-263-4 package, also designated as D2PAK with 3 leads plus tab. Pin assignments and PCB footprints are compatible.

Q: Does the SPX2815AT-L/TR meet the same protection requirements?

A: Yes. Both devices include over current and over temperature protection features.

Q: What should I verify before implementing this substitution?

A: Confirm that your application operating temperature range falls within -40°C to 125°C. If your design requires operation above 125°C, the SPX2815AT-L/TR is not suitable. Verify that RoHS compliance is required for your application, as the IRU1015CM does not meet this standard while the SPX2815AT-L/TR does.

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