RP112Q282B-TR-FE Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The RP112Q282B-TR-FE is an active linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc., classified as a Power Management (PMIC) component. This device functions as a positive fixed output voltage regulator delivering 2.8V at 150mA output current in a 5-TSSOP surface mount package. The part is actively produced and stocked with 1151 units available in new original condition.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including output voltage, output current capacity, package type, and operating temperature range. Identification of alternative models ensures design flexibility, supply chain continuity, and component availability across manufacturing cycles.

Substiute Parts

RP112Q282B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1258RP112Q282B-TR-FE Datasheet

Current PartRFQ

RP110Q282D-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 2199RP110Q282D-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RP112Q282B-TR-FE is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Output voltage fixed at 2.8V
• Output current capacity of 150mA
• Maximum input voltage of 5.25V
• Enable control feature
• Over current protection feature
• Operating temperature range of -40°C to 85°C

Mechanical Equivalence Criteria:

• Surface mount mounting type
• 5-TSSOP / SC-70-5 / SOT-353 package configuration
• SC-88A supplier device package designation

Compliance Equivalence Criteria:

• RoHS compliance status
• Moisture sensitivity level 1 (Unlimited)
• ECCN EAR99 classification

The RP110Q282D-TR-FE meets all electrical, mechanical, and compliance requirements for direct substitution. Variations in quiescent current (Iq) and dropout voltage do not disqualify substitution when the primary functional requirements and package specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

RP112Q282B-TR-FE (Primary Part):

• Active product status with established supply chain
• RoHS Compliant certification
• Specified PSRR performance (80dB ~ 65dB across 1kHz ~ 100kHz frequency range)
• Higher quiescent current (100 µA) with lower dropout voltage (0.28V @ 150mA)
• Current inventory: 1151 units

RP110Q282D-TR-FE (Substitute Part):

• Active product status with higher current inventory (2129 units)
• ROHS3 Compliant certification (enhanced environmental compliance)
• Lower quiescent current (2 µA) with higher dropout voltage (0.4V @ 150mA)
• PSRR not specified in available documentation
• REACH Unaffected status provided

Both parts maintain identical electrical output specifications (2.8V, 150mA), identical package configuration (5-TSSOP/SC-70-5/SOT-353), and identical operating temperature range (-40°C to 85°C). Selection between these parts depends on application-specific requirements regarding quiescent current consumption, dropout voltage tolerance, and PSRR performance characteristics. Both parts satisfy RoHS compliance requirements and moisture sensitivity specifications.

Frequently Asked Questions (FAQ)

Q: Can RP110Q282D-TR-FE replace RP112Q282B-TR-FE in existing designs?

A: Yes. Both parts deliver identical fixed output voltage (2.8V) and output current (150mA), operate across the same temperature range (-40°C to 85°C), and use identical package types (5-TSSOP/SC-70-5/SOT-353). Electrical and mechanical compatibility is maintained. Design review should confirm that the higher dropout voltage (0.4V versus 0.28V) and lower quiescent current (2 µA versus 100 µA) of the substitute part align with circuit requirements.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 5-TSSOP, SC-70-5, SOT-353 package configuration with SC-88A supplier device package designation. PCB footprints and land patterns are identical, enabling direct substitution without layout modifications.

Q: What is the difference in quiescent current between these parts?

A: The RP112Q282B-TR-FE has a quiescent current (Iq) of 100 µA, while the RP110Q282D-TR-FE has an Iq of 2 µA. This 98 µA difference affects standby power consumption. Applications requiring minimal quiescent current draw benefit from the RP110Q282D-TR-FE. Applications where quiescent current is not a limiting factor may use either part.

Q: What is the difference in dropout voltage between these parts?

A: The RP112Q282B-TR-FE has a maximum dropout voltage of 0.28V at 150mA, while the RP110Q282D-TR-FE has a maximum dropout voltage of 0.4V at 150mA. The 0.12V difference affects minimum input voltage requirements. Designs with tight input voltage margins should verify that the higher dropout voltage of the substitute part does not violate minimum input voltage specifications.

Q: Are both parts RoHS compliant?

A: Yes. The RP112Q282B-TR-FE is RoHS Compliant. The RP110Q282D-TR-FE is ROHS3 Compliant, which represents an enhanced version of the RoHS standard. Both parts meet RoHS environmental compliance requirements.

Q: What is the PSRR specification for the RP110Q282D-TR-FE?

A: PSRR (Power Supply Rejection Ratio) is not specified in the available documentation for the RP110Q282D-TR-FE. The RP112Q282B-TR-FE specifies PSRR of 80dB ~ 65dB across the 1kHz ~ 100kHz frequency range. Applications requiring documented PSRR performance should use the RP112Q282B-TR-FE or obtain PSRR specifications from the manufacturer for the RP110Q282D-TR-FE.

Q: Which part should be selected for new designs?

A: Both parts are active products suitable for new designs. Selection depends on application-specific requirements: choose RP112Q282B-TR-FE for designs requiring specified PSRR performance and lower dropout voltage; choose RP110Q282D-TR-FE for designs prioritizing minimal quiescent current consumption and enhanced RoHS3 compliance. Verify that dropout voltage and quiescent current specifications align with circuit requirements before final selection.

Q: Is the RP110Q282D-TR-FE REACH compliant?

A: The RP110Q282D-TR-FE is listed as REACH Unaffected, indicating that REACH regulations do not apply to this component. The RP112Q282B-TR-FE does not specify REACH status in available documentation.