TLV431IDBVRG4 Equivalent & Substitute Parts

Part Overview

The TLV431IDBVRG4 is a shunt voltage reference IC with adjustable output from Texas Instruments, designed for precision voltage regulation applications. This component features a 1.24V to 6V adjustable output with ±1.5% tolerance and 15 mA output current capability in a SOT-23-5 surface mount package. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Active alternatives from both Texas Instruments and STMicroelectronics provide enhanced specifications and improved availability.

Substiute Parts

TLV431IDBVRG4

Texas InstrumentsIn Stock: 1134TLV431IDBVRG4 Datasheet

Current PartRFQ

TLV431IDBVR

Texas InstrumentsIn Stock: 35396TLV431IDBVR Datasheet

MFR RecommendedRFQ

TS431AILT

STMicroelectronicsIn Stock: 21726TS431AILT Datasheet

MFR RecommendedRFQ

TS431AIYLT

STMicroelectronicsIn Stock: 18817TS431AIYLT Datasheet

MFR RecommendedRFQ

TS431BILT

STMicroelectronicsIn Stock: 9608TS431BILT Datasheet

MFR RecommendedRFQ

TS431BIYLT

STMicroelectronicsIn Stock: 2205TS431BIYLT Datasheet

MFR RecommendedRFQ

TS431ILT

STMicroelectronicsIn Stock: 56209TS431ILT Datasheet

MFR RecommendedRFQ

TS431IYLT

STMicroelectronicsIn Stock: 2611TS431IYLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TLV431IDBVRG4 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Reference Type: Shunt (all substitutes maintain this classification)
• Output Type: Adjustable (all substitutes provide adjustable output)
• Voltage Range: 1.24V to 6V output capability (all substitutes support this range)
• Package: SOT-23-5 (SC-74A, SOT-753) surface mount configuration
• RoHS Compliance: ROHS3 Compliant

Performance Variation Parameters:

• Current - Output: Ranges from 15 mA (TLV431IDBVRG4) to 30 mA (TS431 series)
• Tolerance: Ranges from ±0.5% to ±2%
• Operating Temperature: Extended to -40°C ~ 125°C in TS431 variants
• Current - Cathode: 60 µA to 80 µA

Substitutes are grouped by tolerance class and current capability. Parts with higher current output (30 mA) and lower tolerance (±0.5% to ±1%) provide enhanced performance margins. Automotive-qualified variants (TS431AIYLT, TS431BIYLT) include AEC-Q100 certification.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Identical Specifications): TLV431IDBVR is the active equivalent from Texas Instruments with identical electrical specifications and packaging. This part maintains the same ±1.5% tolerance, 15 mA output current, and 80 µA cathode current as the obsolete TLV431IDBVRG4. Selection of this part eliminates obsolescence risk while preserving design compatibility.

Enhanced Performance Alternatives: The TS431 series from STMicroelectronics provides superior specifications across all variants. All TS431 parts deliver 30 mA output current (double the original), extended operating temperature range to 125°C, and reduced cathode current to 60 µA. Tolerance options range from ±0.5% (TS431BILT, TS431BIYLT) to ±2% (TS431ILT, TS431IYLT), accommodating various precision requirements.

Automotive Applications: For automotive or mission-critical applications, TS431AIYLT (±1% tolerance, AEC-Q100 qualified) and TS431BIYLT (±0.5% tolerance, AEC-Q100 qualified) provide certified reliability. These variants maintain the same SOT-23-5 package and voltage specifications while offering enhanced temperature performance and automotive-grade qualification.

Compliance and Availability: All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Active product status ensures long-term availability and supply chain stability compared to the obsolete TLV431IDBVRG4.

Frequently Asked Questions (FAQ)

Q: Can TS431 series parts directly replace the TLV431IDBVRG4 in existing designs? A: Yes, all TS431 variants are pin-compatible in the SOT-23-5 package and maintain the same 1.24V to 6V adjustable output range. The higher output current (30 mA vs. 15 mA) and extended temperature range provide enhanced performance margins. Circuit validation is recommended for applications with tight tolerance requirements below ±1.5%.

Q: What is the difference between TS431AILT and TS431AIYLT? A: Both parts are electrically identical with ±1% tolerance, 30 mA output current, and -40°C to 125°C operating range. TS431AIYLT includes automotive-grade qualification (AEC-Q100) and is designated for automotive applications. Selection depends on application requirements and qualification standards.

Q: Why does the TLV431IDBVR have lower output current (15 mA) compared to TS431 variants (30 mA)? A: The TLV431IDBVR maintains the original specification of the obsolete TLV431IDBVRG4 for direct replacement purposes. TS431 series parts represent an enhanced design generation with improved current delivery capability. Applications requiring only 15 mA can use either part; applications benefiting from higher current should select TS431 variants.

Q: Are there tolerance trade-offs when selecting substitute parts? A: Tolerance selection depends on application precision requirements. TS431BILT and TS431BIYLT offer ±0.5% tolerance for high-precision applications. TS431AILT and TS431AIYLT provide ±1% tolerance for general-purpose use. TS431ILT and TS431IYLT offer ±2% tolerance for cost-sensitive applications. All maintain the same voltage output range and package configuration.

Q: What packaging options are available for these substitute parts? A: All substitute parts are supplied in SOT-23-5 (SC-74A, SOT-753) surface mount package. Packaging formats include Cut Tape (CT) and Digi-Reel® options for automated assembly. No alternative package configurations are available for this product category.