TPS76915DBVT Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The TPS76915DBVT is a linear voltage regulator IC manufactured by Texas Instruments, designed for positive fixed 1.5V output at 100mA in SOT-23-5 surface mount packaging. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs or production continuity. The device provides essential power management functionality with integrated over-current, over-temperature, and reverse polarity protection, operating across the industrial temperature range of -40°C to 125°C.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Part Number	TPS76915DBVT
Category	Power Management (PMIC)
Output Voltage (Fixed)	1.5V
Output Current	100mA
Input Voltage (Max)	10V
Package	SOT-23-5 (SC-74A, SOT-753)
Mounting Type	Surface Mount
Operating Temperature	-40°C to 125°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the TPS76915DBVT is determined by the following critical parameters:

Primary Substitution Criteria:

Output voltage: 1.5V fixed
Output current capability: minimum 100mA
Input voltage rating: 10V maximum
Package type: SOT-23-5 surface mount
Output configuration: Positive fixed
Protection features: Over-current and over-temperature protection
Operating temperature range: -40°C to 125°C
Compliance: ROHS3, REACH Unaffected, EAR99

Substitution Categories:

Category 1 - Parametric Equivalents (Identical Specifications): Parts with identical electrical characteristics, output voltage, current rating, and package, differing only in packaging format (Tape & Reel vs. Cut Tape) or product status (Active vs. Obsolete).

Category 2 - Enhanced Equivalents (Superior Performance): Parts with identical output voltage and current capability but improved electrical characteristics such as higher PSRR, lower quiescent current, or better dropout voltage performance.

Category 3 - Functional Alternatives (Higher Current Rating): Parts with identical output voltage and package but higher output current capability, suitable for designs requiring additional current margin.

Category 4 - Cross-Manufacturer Alternatives: Parts from different manufacturers meeting identical electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Voltage	Output Current	Input Voltage (Max)	Quiescent Current	PSRR (1kHz)	Package	Packaging Format
TPS76915DBVT	Texas Instruments	Obsolete	1.5V	100mA	10V	28 µA	60dB	SOT-23-5	Tape & Reel
TPS76915DBVR	Texas Instruments	Active	1.5V	100mA	10V	28 µA	60dB	SOT-23-5	Tape & Reel
TPS76915QDBVRG4Q1	Texas Instruments	Active	1.5V	100mA	10V	28 µA	60dB	SOT-23-5	Tape & Reel
TPS78915DBVR	Texas Instruments	Active	1.5V	100mA	10V	28 µA	85dB	SOT-23-5	Tape & Reel
TPS78915DBVT	Texas Instruments	Active	1.5V	100mA	10V	28 µA	85dB	SOT-23-5	Tape & Reel
S-1200B15-M5T1U	ABLIC Inc.	Active	1.5V	150mA	10V	1 µA	70dB	SOT-23-5	Cut Tape
S-L2980A15MC-TF-U	ABLIC Inc.	Active	1.5V	150mA	10V	1 µA	70dB	SOT-23-5	Tape & Reel
TPS7A2401DBVR	Texas Instruments	Active	1.24V to 17.75V (Adjustable)	200mA	18V	4.5 µA	75dB ~ 62dB	SOT-23-5	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Replacement (Active Status):

TPS76915DBVR and TPS78915DBVT are the primary active equivalents for the obsolete TPS76915DBVT. Both maintain identical electrical specifications and package format. TPS78915DBVT offers improved PSRR performance (85dB vs. 60dB at 1kHz), providing superior noise rejection in sensitive applications. TPS76915QDBVRG4Q1 is qualified to AEC-Q100 automotive standards and is suitable for automotive-grade applications requiring enhanced reliability documentation.

Enhanced Performance Alternative:

TPS78915DBVR provides identical output voltage and current specifications with superior PSRR (85dB), making it suitable for applications requiring improved power supply rejection ratio performance while maintaining full compatibility with the original design.

Higher Current Capacity Alternatives:

S-1200B15-M5T1U and S-L2980A15MC-TF-U from ABLIC Inc. provide 150mA output current capability with identical 1.5V output voltage and SOT-23-5 packaging. These parts are suitable for designs requiring additional current margin. S-L2980A15MC-TF-U offers superior dropout voltage performance (0.33V @ 50mA) compared to S-1200B15-M5T1U (0.6V @ 100mA). Both parts operate at -40°C to 85°C, which is within the original part's temperature range.

Adjustable Output Alternative:

TPS7A2401DBVR is an adjustable output regulator capable of 1.24V to 17.75V output with 200mA current capability. This part is suitable only for applications where output voltage adjustment is acceptable and where the higher input voltage rating (18V) and improved quiescent current (4.5 µA) provide design benefits.

All recommended substitutes maintain ROHS3 compliance, REACH Unaffected status, and EAR99 classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can TPS76915DBVR be used as a direct replacement for TPS76915DBVT?

A: Yes. TPS76915DBVR is an active equivalent with identical electrical specifications, output voltage (1.5V), output current (100mA), input voltage rating (10V), package type (SOT-23-5), and operating temperature range (-40°C to 125°C). The only difference is product status (Active vs. Obsolete).

Q: What is the difference between TPS76915DBVR and TPS78915DBVT?

A: Both parts provide identical 1.5V output at 100mA in SOT-23-5 packaging. TPS78915DBVT offers superior PSRR performance (85dB vs. 60dB at 1kHz), resulting in better noise rejection. Selection depends on application noise sensitivity requirements.

Q: Can ABLIC S-1200B15-M5T1U be used instead of TPS76915DBVT?

A: Yes, with design considerations. The S-1200B15-M5T1U provides identical 1.5V output and SOT-23-5 packaging but offers higher current capability (150mA vs. 100mA). Operating temperature range is -40°C to 85°C, which is narrower than the original part (-40°C to 125°C). Verify application temperature requirements before substitution.

Q: What are the key differences between fixed and adjustable output regulators?

A: Fixed output regulators like TPS76915DBVT provide a preset output voltage (1.5V) determined by internal design. Adjustable output regulators like TPS7A2401DBVR allow output voltage configuration through external resistor networks. Fixed regulators are simpler and require fewer external components; adjustable regulators provide design flexibility for multiple voltage requirements.

Q: Is TPS7A2401DBVR suitable as a substitute for TPS76915DBVT?

A: TPS7A2401DBVR is functionally compatible only if the application can accommodate adjustable output voltage configuration. The part provides higher current capability (200mA), improved quiescent current (4.5 µA), and higher input voltage rating (18V). However, it requires external resistor configuration to set 1.5V output and is not a direct plug-in replacement.

Q: What packaging format differences exist between substitute parts?

A: Tape & Reel (TR) packaging is standard for high-volume production and automated assembly. Cut Tape (CT) packaging is suitable for lower-volume applications or manual assembly. Digi-Reel is a proprietary format. All substitute parts use identical SOT-23-5 physical package dimensions, ensuring PCB footprint compatibility regardless of packaging format.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status, consistent with the original TPS76915DBVT specifications.

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