R1114N151B-TR-FE Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The R1114N151B-TR-FE is an active linear voltage regulator IC manufactured by Nisshinbo Micro Devices Inc. This positive fixed output regulator delivers 150mA at 1.5V with a maximum input voltage of 6V and is packaged in SOT-23-5 surface mount configuration. The device includes enable control and over-current protection features, operating across the industrial temperature range of -40°C to 85°C.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility is required while maintaining functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

R1114N151B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 985R1114N151B-TR-FE Datasheet

Current PartRFQ

R1180N151B-TR-FE

Nisshinbo Micro Devices Inc.In Stock: 1278R1180N151B-TR-FE Datasheet

Parametric EquivalentRFQ

XC6504A151MR-G

Torex Semiconductor LtdIn Stock: 1130XC6504A151MR-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the R1114N151B-TR-FE is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Fixed output voltage of 1.5V
• Output current rating of 150mA
• Maximum input voltage of 6V
• Positive output configuration
• Enable control feature
• Over-current protection
• Operating temperature range -40°C to 85°C
• Surface mount packaging (SOT-23-5 or SOT-25-5)
• RoHS compliance

Acceptable Parameter Variations:

• Voltage dropout may vary within the specified maximum ratings for each part
• Quiescent current variations are acceptable provided the part meets all other electrical specifications
• PSRR (Power Supply Rejection Ratio) variations are acceptable when not specified as a design requirement

The identified substitute parts R1180N151B-TR-FE and XC6504A151MR-G meet all primary substitution criteria and are functionally compatible with the R1114N151B-TR-FE within the defined electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

R1180N151B-TR-FE (Nisshinbo Micro Devices Inc.)

This part is a parametric equivalent from the same manufacturer. It maintains identical output voltage, current, and input specifications. The R1180N151B-TR-FE exhibits lower quiescent current (1.5µA versus 95µA) and slightly higher dropout voltage (0.9V versus 0.7V). Both parts are RoHS compliant and active products with identical operating temperature ranges. Selection of this part is appropriate when lower standby power consumption is beneficial and the increased dropout voltage is acceptable within the application's input voltage margin.

XC6504A151MR-G (Torex Semiconductor Ltd)

This part is a cross-manufacturer equivalent from Torex Semiconductor Ltd. It meets all primary electrical specifications with identical output voltage, current, and input ratings. The XC6504A151MR-G features significantly lower quiescent current (1.27µA) but exhibits higher dropout voltage (1.63V). The package designation differs slightly (SOT-25-5 versus SOT-23-5), though both use the SC-74A physical form factor. This part is ROHS3 compliant and carries REACH Unaffected status. Selection is appropriate when the higher dropout voltage can be accommodated and cross-manufacturer sourcing is required.

All three parts are active products with current manufacturing status and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can R1180N151B-TR-FE be used as a direct replacement for R1114N151B-TR-FE?

A: Yes. Both parts deliver identical output voltage (1.5V) and current (150mA) with the same input voltage rating (6V maximum), operating temperature range (-40°C to 85°C), and control/protection features. The R1180N151B-TR-FE has lower quiescent current but higher dropout voltage. Substitution is valid when the application's input voltage margin accommodates the 0.9V dropout specification.

Q: What is the difference between SOT-23-5 and SOT-25-5 packages?

A: Both designations refer to 5-pin surface mount packages with the same physical form factor (SC-74A). The primary difference is internal lead frame geometry. Pin count, spacing, and PCB footprint compatibility are identical. XC6504A151MR-G uses SOT-25-5 designation while R1114N151B-TR-FE and R1180N151B-TR-FE use SOT-23-5, but all three parts are mechanically compatible on the same PCB layout.

Q: Why does XC6504A151MR-G have higher dropout voltage than the Nisshinbo parts?

A: Dropout voltage is determined by the internal pass transistor design and is a characteristic of each manufacturer's IC architecture. The XC6504A151MR-G's 1.63V dropout is within acceptable limits for 6V input applications but requires verification that the minimum input voltage remains above 3.13V (1.5V output plus 1.63V dropout) under worst-case conditions.

Q: Are all three parts RoHS compliant?

A: Yes. R1114N151B-TR-FE and R1180N151B-TR-FE are RoHS Compliant. XC6504A151MR-G is ROHS3 Compliant, which represents a more recent revision of the RoHS standard. Both compliance levels are acceptable for current applications.

Q: Which part should be selected for lowest power consumption?

A: Both R1180N151B-TR-FE and XC6504A151MR-G have significantly lower quiescent current (1.5µA and 1.27µA respectively) compared to R1114N151B-TR-FE (95µA). Selection between these two depends on whether the higher dropout voltage of the XC6504A151MR-G is acceptable within the application's input voltage budget.

Q: Can these parts be used interchangeably on the same PCB without layout changes?

A: Yes. All three parts use identical pin configurations and physical form factors (SC-74A). PCB footprints and layouts designed for R1114N151B-TR-FE are directly compatible with R1180N151B-TR-FE and XC6504A151MR-G without modification.