TLV431ACDBVR Equivalent & Substitute Parts

Part Overview

The TLV431ACDBVR is an adjustable shunt voltage reference IC manufactured by Texas Instruments, classified as a Power Management (PMIC) component. This device generates a stable 1.24V to 6V adjustable reference output with ±1% tolerance, suitable for precision voltage regulation and feedback applications. The part is Active status and widely used in power supply designs, battery management systems, and precision analog circuits. Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining circuit functionality and reliability requirements.

Key Parameters

Parameter	Value	Unit
Reference Type	Shunt	—
Output Type	Adjustable	—
Voltage - Output (Min/Fixed)	1.24	V
Voltage - Output (Max)	6	V
Current - Output	15	mA
Tolerance	±1%	—
Current - Cathode	80	µA
Operating Temperature	0 to 70	°C
Mounting Type	Surface Mount	—
Package / Case	SC-74A, SOT-753	—
RoHS Status	ROHS3 Compliant	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitution eligibility for the TLV431ACDBVR is determined by the following critical parameters:

Primary Substitution Criteria:

Reference Type: Shunt
Output Type: Adjustable
Voltage - Output (Min/Fixed): 1.24V
Tolerance: ±1% or better
Mounting Type: Surface Mount
Package / Case: SC-74A, SOT-753 compatible packages

Secondary Compatibility Factors:

Current - Output: Equal to or greater than 15 mA
Current - Cathode: Within acceptable range for circuit biasing
Operating Temperature: Must support application requirements
RoHS Status: ROHS3 Compliant

Substitute parts are grouped based on whether they meet or exceed the electrical specifications of the main part while maintaining package compatibility and regulatory compliance. Parts with higher maximum output voltage, higher output current capability, or wider operating temperature ranges are considered direct substitutes when other parameters align.

Parameter Comparison

Parameter	TLV431ACDBVR	TLV431AE5TA	AZ431LBKTR-G1	TS431AILT	TS431AIYLT	TS431BILT	TS431ILT	TS431IYLT
Manufacturer	Texas Instruments	Diodes Incorporated	Diodes Incorporated	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Reference Type	Shunt	Shunt	Shunt	Shunt	Shunt	Shunt	Shunt	Shunt
Output Type	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable
Voltage - Output (Min/Fixed)	1.24 V	1.24 V	1.24 V	1.24 V	1.24 V	1.24 V	1.24 V	1.24 V
Voltage - Output (Max)	6 V	18 V	18 V	6 V	6 V	6 V	6 V	6 V
Current - Output	15 mA	15 mA	100 mA	30 mA	30 mA	30 mA	30 mA	30 mA
Tolerance	±1%	±1%	±1%	±1%	±1%	±0.5%	±2%	±2%
Temperature Coefficient	—	—	20 ppm/°C	100 ppm/°C	100 ppm/°C	100 ppm/°C	100 ppm/°C	100 ppm/°C
Current - Cathode	80 µA	100 µA	80 µA	60 µA	60 µA	60 µA	60 µA	60 µA
Operating Temperature	0 to 70 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C	-40 to 125 °C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753	SC-74A, SOT-753
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active
Automotive Grade	—	—	—	—	AEC-Q100	—	—	AEC-Q100
MSL Rating	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Substitutes (Equivalent Performance):

TS431AILT and TS431AIYLT are direct substitutes for the TLV431ACDBVR. Both parts maintain the same reference type, adjustable output, 1.24V minimum output, ±1% tolerance, and SC-74A/SOT-753 package compatibility. These STMicroelectronics parts provide higher output current capability (30 mA versus 15 mA) and extended operating temperature range (-40 to 125°C). TS431AIYLT includes AEC-Q100 automotive qualification, suitable for automotive applications.

Higher Tolerance Alternatives:

TS431BILT offers ±0.5% tolerance, providing superior voltage accuracy compared to the ±1% specification of the main part. TS431ILT and TS431IYLT operate with ±2% tolerance, representing a relaxation of accuracy requirements. Both maintain 30 mA output current and extended temperature range. TS431IYLT includes AEC-Q100 qualification.

Extended Voltage Range Substitute:

TLV431AE5TA (Diodes Incorporated) and AZ431LBKTR-G1 (Diodes Incorporated) support maximum output voltage of 18V, compared to 6V for the main part. TLV431AE5TA maintains 15 mA output current with ±1% tolerance. AZ431LBKTR-G1 provides 100 mA output current with ±1% tolerance and 20 ppm/°C temperature coefficient, suitable for applications requiring higher current delivery or extended voltage range.

All substitute parts are Active status and ROHS3 compliant. Selection should be based on specific circuit requirements for output current, operating temperature range, voltage range, and accuracy specifications.

Frequently Asked Questions (FAQ)

Q: Can TS431AILT replace TLV431ACDBVR in my circuit?

A: Yes. TS431AILT is a direct substitute. Both are shunt voltage references with 1.24V adjustable output, ±1% tolerance, and SC-74A/SOT-753 package. TS431AILT provides higher output current (30 mA versus 15 mA) and wider operating temperature range (-40 to 125°C versus 0 to 70°C), making it suitable for demanding applications.

Q: What is the difference between TS431AILT and TS431BILT?

A: The primary difference is tolerance specification. TS431AILT operates at ±1% tolerance, while TS431BILT operates at ±0.5% tolerance. Both share identical output voltage range (1.24V to 6V), output current (30 mA), and operating temperature range (-40 to 125°C). TS431BILT is selected when superior voltage accuracy is required.

Q: Can I use AZ431LBKTR-G1 in place of TLV431ACDBVR?

A: AZ431LBKTR-G1 is compatible from a functional standpoint but offers enhanced specifications. It supports 18V maximum output (versus 6V), delivers 100 mA output current (versus 15 mA), and includes 20 ppm/°C temperature coefficient. Use AZ431LBKTR-G1 when higher current delivery or extended voltage range is required. Note the MSL rating is 3 (168 Hours) versus 1 (Unlimited) for the main part.

Q: Are TS431AIYLT and TS431IYLT suitable for automotive applications?

A: TS431AIYLT and TS431IYLT both include AEC-Q100 automotive qualification. TS431AIYLT maintains ±1% tolerance, while TS431IYLT operates at ±2% tolerance. Both are suitable for automotive-grade designs requiring extended temperature operation (-40 to 125°C).

Q: What is the package compatibility between all substitute parts?

A: All substitute parts use SC-74A/SOT-753 package designation, ensuring mechanical and electrical compatibility with TLV431ACDBVR. Pinout and footprint are identical across all listed alternatives.

Q: Why would I choose TLV431AE5TA over other substitutes?

A: TLV431AE5TA is selected when maximum output voltage of 18V is required while maintaining 15 mA output current and ±1% tolerance. It is manufactured by Diodes Incorporated and maintains the same current output as the main part, making it suitable for direct replacement in circuits requiring extended voltage range without increased current demand.

Q: What does MSL rating mean for component selection?

A: MSL (Moisture Sensitivity Level) indicates the component's sensitivity to moisture during storage and handling. MSL 1 (Unlimited) means the part has no moisture sensitivity restrictions. MSL 3 (168 Hours) requires controlled storage conditions and limits shelf life. For standard applications, MSL 1 parts offer greater handling flexibility.

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