R1114D281A-TR-FE Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The R1114D281A-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 150mA at 2.8V with integrated enable control and over-current protection. The part is supplied in Tape & Reel packaging with SON1612-6 surface mount configuration.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or when functionally compatible alternatives from the same manufacturer series provide equivalent electrical performance within specified operating parameters.

Substiute Parts

R1114D281A-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 979R1114D281A-TR-FE Datasheet

Current PartRFQ

R1180D281B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 3583R1180D281B-TR-FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the R1114D281A-TR-FE are identified based on strict electrical and mechanical parameter matching within the Nisshinbo Micro Devices linear regulator portfolio. The substitution criteria are:

Critical Matching Parameters:

• Output voltage (fixed): 2.8V
• Output current capability: 150mA
• Maximum input voltage: 6V
• Package configuration: SON1612-6 surface mount
• Control features: Enable function
• Protection features: Over-current protection
• Operating temperature range: -40°C to 85°C
• Mounting type: Surface mount
• RoHS compliance status

The R1180D281B-TR-FE qualifies as a parametric equivalent based on identical output voltage, output current, input voltage rating, package type, control and protection features, and operating temperature range. Both parts are manufactured by Nisshinbo Micro Devices Inc. and share the same SON1612-6 package specification, enabling direct substitution in circuit applications where the specified electrical parameters are required.

Parameter Comparison

Engineering Selection Recommendations

R1114D281A-TR-FE (Primary Part):

• Active product status with 926 units in stock
• RoHS Compliant certification
• Quiescent current: 95 µA
• Voltage dropout: 0.35V @ 150mA
• PSRR: 70dB ~ 60dB (1kHz ~ 10kHz)

R1180D281B-TR-FE (Substitute Part):

• Active product status with 3533 units in stock
• ROHS3 Compliant certification with REACH Unaffected status
• Quiescent current: 1.5 µA (significantly lower)
• Voltage dropout: 0.4V @ 150mA (marginally higher)
• PSRR data not provided

Both parts meet identical functional requirements for 2.8V, 150mA linear regulation in SON1612-6 surface mount packages. The R1180D281B-TR-FE offers superior inventory availability and lower quiescent current consumption, making it suitable for applications prioritizing standby power efficiency. The R1114D281A-TR-FE provides lower dropout voltage and documented PSRR performance for noise-sensitive applications. Selection between these parts depends on application-specific requirements for power supply rejection ratio, dropout voltage margin, and quiescent current characteristics.

Frequently Asked Questions (FAQ)

Q: Can the R1180D281B-TR-FE directly replace the R1114D281A-TR-FE in existing designs?

A: Yes. Both parts share identical output voltage (2.8V), output current (150mA), input voltage rating (6V maximum), package configuration (SON1612-6), control features (Enable), protection features (Over-current), and operating temperature range (-40°C to 85°C). Direct substitution is electrically and mechanically compatible.

Q: What are the differences between these two parts?

A: The primary differences are quiescent current (R1114D281A: 95 µA vs. R1180D281B: 1.5 µA), voltage dropout (R1114D281A: 0.35V vs. R1180D281B: 0.4V), and RoHS certification level (RoHS Compliant vs. ROHS3 Compliant). The R1180D281B-TR-FE provides significantly lower standby current consumption.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the SON1612-6 package configuration with SOT-563 and SOT-666 case designations, ensuring identical PCB footprint and mounting requirements.

Q: Which part should be selected for low-power standby applications?

A: The R1180D281B-TR-FE is preferred for applications requiring minimal quiescent current, as it operates at 1.5 µA compared to 95 µA for the R1114D281A-TR-FE.

Q: Which part should be selected for applications requiring minimal voltage dropout?

A: The R1114D281A-TR-FE provides lower dropout voltage at 0.35V @ 150mA, compared to 0.4V @ 150mA for the R1180D281B-TR-FE. This difference is relevant in applications with limited input voltage headroom.

Q: Are both parts RoHS compliant?

A: Yes. The R1114D281A-TR-FE is RoHS Compliant, and the R1180D281B-TR-FE is ROHS3 Compliant. Both meet RoHS requirements for hazardous substance restrictions.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

Q: Are these parts suitable for surface mount assembly?

A: Yes. Both parts are classified as Surface Mount devices in SON1612-6 packages, compatible with standard SMT assembly processes and equipment.