PAM3101AAA250 Equivalent & Substitute Parts

Part Overview

The PAM3101AAA250 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 2.5V output applications with 300mA current capacity in a compact SOT-23-3 surface mount package. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. The regulator integrates over-current, over-temperature, and short-circuit protection with an enable control feature, operating across the industrial temperature range of -40°C to 85°C.

Substiute Parts

PAM3101AAA250

Diodes IncorporatedIn Stock: 6233PAM3101AAA250 Datasheet

Current PartRFQ

AP2127N-2.5TRG1

Diodes IncorporatedIn Stock: 7550AP2127N-2.5TRG1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PAM3101AAA250 is determined by strict alignment of the following critical parameters:

• Fixed output voltage of 2.5V
• Output current rating of 300mA minimum
• SOT-23-3 package compatibility
• Surface mount technology
• Operating temperature range of -40°C to 85°C minimum
• Protection features including over-current and over-temperature
• RoHS3 compliance

The AP2127N-2.5TRG1 qualifies as a direct substitute based on matching all mandatory electrical and mechanical specifications. This part is manufactured by the same supplier (Diodes Incorporated) and maintains functional equivalence while offering improved performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The AP2127N-2.5TRG1 is the qualified substitute for the obsolete PAM3101AAA250. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and production transitions.

The AP2127N-2.5TRG1 offers measurable improvements over the original part: reduced maximum dropout voltage (0.3V versus 0.45V at 300mA) and increased maximum input voltage rating (6V versus 5.5V). These enhancements provide greater design margin and operational flexibility while maintaining identical output voltage, current capacity, and thermal operating range.

The substitute part is currently in active production status with established supply availability, eliminating obsolescence risk associated with the original PAM3101AAA250.

Frequently Asked Questions (FAQ)

Q: Can the AP2127N-2.5TRG1 be used as a direct replacement for the PAM3101AAA250 in existing designs?

A: Yes. Both parts deliver 2.5V fixed output at 300mA in identical SOT-23-3 packages with matching pinout and thermal specifications. Pin-for-pin compatibility is confirmed across all functional terminals.

Q: What are the key differences between these parts?

A: The AP2127N-2.5TRG1 features lower dropout voltage (0.3V versus 0.45V) and higher maximum input voltage (6V versus 5.5V). The substitute part is in active production, whereas the original is obsolete. Quiescent current and output voltage remain identical.

Q: Are there any control feature differences?

A: The PAM3101AAA250 includes an enable control feature. The AP2127N-2.5TRG1 does not list enable functionality in the provided specifications. Applications requiring enable control must evaluate this functional difference against design requirements.

Q: What packaging formats are available?

A: The PAM3101AAA250 is supplied in bulk packaging. The AP2127N-2.5TRG1 is available in Tape & Reel (TR) format, standard for production volume applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the PAM3101AAA250 and AP2127N-2.5TRG1 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.