RP130N331A-TR-FE Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The RP130N331A-TR-FE is an active linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc. This positive fixed output regulator delivers 150mA at 3.3V and operates across an input voltage range up to 6.5V. The device is housed in a SOT-23-5 surface mount package and includes enable control and over-current protection features.

Equivalent and substitute parts are identified for applications requiring component interchangeability due to supply chain considerations, inventory availability, or design flexibility within the specified electrical and mechanical parameters.

Substiute Parts

RP130N331A-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 798RP130N331A-TR-FE Datasheet

Current PartRFQ

RP130N331B-TR-YE

Nisshinbo Micro Devices Inc.In Stock: 7045RP130N331B-TR-YE Datasheet

Parametric EquivalentRFQ

LD39015M33R

STMicroelectronicsIn Stock: 2863LD39015M33R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RP130N331A-TR-FE are classified based on electrical parameter compatibility and mechanical interchangeability. The substitution logic is based on the following criteria:

Parametric Equivalents share identical or functionally equivalent electrical specifications across all critical parameters: fixed 3.3V output, 150mA output current capability, SOT-23-5 package, surface mount configuration, enable control, and over-current protection.

Similar Alternatives maintain the same output voltage, output current rating, and package form factor but may exhibit variations in maximum input voltage, dropout voltage, quiescent current, PSRR performance, temperature range, or additional protection features. These parts are suitable for applications where the specified parameter differences do not impact circuit performance.

Substitution eligibility is determined by:

• Fixed 3.3V output voltage
• 150mA output current rating
• SOT-23-5 package / SC-74A case
• Surface mount configuration
• Enable control capability
• Over-current protection

Parameter Comparison

Engineering Selection Recommendations

RP130N331B-TR-YE is a parametric equivalent to the RP130N331A-TR-FE. Both devices are manufactured by Nisshinbo Micro Devices Inc. and share identical electrical specifications across all critical parameters. The RP130N331B-TR-YE carries ROHS3 compliance certification and is available in higher inventory quantities (6,997 pieces). This part is suitable for direct substitution in applications where the RP130N331A-TR-FE is specified.

LD39015M33R is a similar alternative manufactured by STMicroelectronics. This device maintains the same 3.3V fixed output, 150mA output current, and SOT-23-5 package configuration. The LD39015M33R exhibits lower dropout voltage (0.1V @ 100mA versus 0.51V @ 150mA), lower quiescent current (50µA versus 58µA), and an extended operating temperature range (-40°C to 125°C versus -40°C to 105°C). The LD39015M33R includes over-temperature protection in addition to over-current protection. The maximum input voltage is 5.5V, which is lower than the RP130N331A-TR-FE specification of 6.5V. The LD39015M33R is suitable for applications where the lower maximum input voltage does not constrain circuit design and where the improved dropout voltage and temperature range provide operational benefits.

Both substitute parts carry ROHS3 and REACH compliance certifications consistent with current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can RP130N331B-TR-YE be used as a direct replacement for RP130N331A-TR-FE?

A: Yes. The RP130N331B-TR-YE is a parametric equivalent with identical electrical specifications. Both devices deliver 3.3V at 150mA, operate across the same input voltage range (up to 6.5V), exhibit identical dropout voltage and quiescent current characteristics, and are housed in the same SOT-23-5 package. Pin configuration and functional behavior are equivalent.

Q: What are the key differences between RP130N331A-TR-FE and LD39015M33R?

A: The LD39015M33R differs in three areas: (1) Maximum input voltage is 5.5V instead of 6.5V; (2) Dropout voltage is significantly lower at 0.1V @ 100mA compared to 0.51V @ 150mA; (3) Operating temperature range extends to 125°C instead of 105°C. The LD39015M33R also includes over-temperature protection. All other parameters including output voltage, output current, package type, and control features are equivalent.

Q: Is the LD39015M33R suitable for applications requiring 6.5V input voltage?

A: No. The LD39015M33R has a maximum input voltage specification of 5.5V. Applications requiring input voltages above 5.5V must use the RP130N331A-TR-FE or RP130N331B-TR-YE, both of which support up to 6.5V input.

Q: Are all three parts available in the same packaging format?

A: The RP130N331A-TR-FE and RP130N331B-TR-YE are supplied in Tape & Reel (TR) format. The LD39015M33R is supplied in Cut Tape (CT) and Digi-Reel® format. Both packaging formats are suitable for automated assembly processes, though reel specifications may differ.

Q: Do all substitute parts meet current RoHS compliance requirements?

A: Yes. The RP130N331B-TR-YE and LD39015M33R both carry ROHS3 certification. The RP130N331A-TR-FE carries RoHS Compliant status. All three parts are REACH Unaffected or compliant.

Q: Which part offers the best performance for low-power applications?

A: The LD39015M33R exhibits the lowest quiescent current at 50µA compared to 58µA for the Nisshinbo devices. For applications prioritizing minimal standby current consumption, the LD39015M33R provides a marginal advantage. However, the difference is not significant for most applications.

Q: Can the LD39015M33R be used in high-temperature environments?

A: The LD39015M33R operates to 125°C, which is 20°C higher than the RP130N331A-TR-FE and RP130N331B-TR-YE (105°C maximum). For applications requiring operation above 105°C, the LD39015M33R is suitable provided the 5.5V maximum input voltage constraint is acceptable.