PAM3101DAB150 Equivalent & Substitute Parts

Part Overview

The PAM3101DAB150 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 1.5V output applications with 300mA current capacity in a compact SOT-23-5 surface mount package. This part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

PAM3101DAB150

Diodes IncorporatedIn Stock: 17741PAM3101DAB150 Datasheet

Current PartRFQ

AP2127K-1.5TRG1

Diodes IncorporatedIn Stock: 9985AP2127K-1.5TRG1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PAM3101DAB150 is determined by the following critical parameters:

• Fixed output voltage of 1.5V
• Output current capability of 300mA minimum
• Maximum input voltage rating of 5.5V or higher
• SOT-23-5 package compatibility
• Operating temperature range of -40°C to 85°C
• RoHS3 compliance for regulatory alignment

The AP2127K-1.5TRG1 qualifies as a direct substitute based on matching all core electrical specifications and package requirements, despite differences in dropout voltage, PSRR characteristics, and control feature availability.

Parameter Comparison

Engineering Selection Recommendations

The AP2127K-1.5TRG1 is the qualified substitute for PAM3101DAB150 applications. Selection is supported by:

• Identical fixed output voltage and current rating
• Active product status ensuring long-term availability and supply chain continuity
• Equivalent operating temperature range and RoHS3 compliance
• Improved maximum input voltage rating (6V vs 5.5V) providing design margin
• Superior dropout voltage performance (1V vs 1.4V @ 300mA) reducing thermal dissipation requirements
• Identical quiescent current specification maintaining power efficiency

The AP2127K-1.5TRG1 is available in Tape & Reel packaging, suitable for automated assembly processes. Direct pin-compatible replacement is confirmed through matching SOT-23-5 package geometry.

Frequently Asked Questions (FAQ)

Q: Can AP2127K-1.5TRG1 directly replace PAM3101DAB150 in existing designs?

A: Yes. Both devices share identical output voltage (1.5V), output current (300mA), quiescent current (90 µA), operating temperature range (-40°C ~ 85°C), and SOT-23-5 package configuration. Pin-for-pin compatibility is confirmed.

Q: What are the key differences between these parts?

A: The AP2127K-1.5TRG1 features lower dropout voltage (1V vs 1.4V @ 300mA), higher maximum input voltage rating (6V vs 5.5V), and active product status. The PAM3101DAB150 includes short circuit protection as an additional feature. These differences do not prevent substitution in standard linear regulator applications.

Q: Why is the PAM3101DAB150 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The AP2127K-1.5TRG1 provides functional equivalence with active availability, ensuring design continuity and supply chain reliability.

Q: Are there packaging differences between these parts?

A: Both parts use SOT-23-5 (SC-74A) surface mount packaging. The AP2127K-1.5TRG1 is supplied in Tape & Reel format, standard for high-volume manufacturing. The PAM3101DAB150 packaging format is not specified in available data.

Q: Does the improved dropout voltage of AP2127K-1.5TRG1 affect circuit design?

A: Lower dropout voltage reduces power dissipation and thermal load on the regulator. This represents an improvement over the original part and does not require design modifications. Existing thermal calculations remain valid with margin increase.

Q: Are both parts RoHS3 compliant?

A: Yes. Both PAM3101DAB150 and AP2127K-1.5TRG1 meet ROHS3 compliance requirements, ensuring regulatory alignment for current manufacturing standards.