TPS76150DBVT Equivalent & Substitute Parts

Part Overview

The TPS76150DBVT is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. It delivers a fixed 5V output at 100mA in a compact SOT-23-5 surface mount package. The device features integrated protection against overcurrent, overtemperature, reverse polarity, and transient voltage conditions, with an operating range of -40°C to 125°C.

The TPS76150DBVT is designated as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring 5V linear regulation at 100mA output capacity.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	100mA
Input Voltage (Max)	16V
Voltage Dropout (Max)	0.28V @ 100mA
Quiescent Current	115 µA
Package	SOT-23-5 (SC-74A)
Operating Temperature	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Reverse Polarity, Transient Voltage
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TPS76150DBVT is determined by the following critical parameters:

Fixed 5V output voltage
Minimum 100mA output current capability
SOT-23-5 package compatibility
Input voltage rating of 16V or higher
Operating temperature range of -40°C to 125°C
Surface mount technology

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts with identical electrical specifications and protection feature sets, differing only in packaging format (Cut Tape vs. Tape & Reel).

Manufacturer Recommended Alternatives: Parts meeting all critical electrical parameters with minor variations in quiescent current, dropout voltage, or protection feature subsets, while maintaining functional compatibility in standard applications.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Dropout (Max)	Quiescent Current	Input Voltage (Max)	Package	Status
TPS76150DBVT	Texas Instruments	5V	100mA	0.28V @ 100mA	115 µA	16V	SOT-23-5	Last Time Buy
TPS76150DBVR	Texas Instruments	5V	100mA	0.28V @ 100mA	115 µA	16V	SOT-23-5	Active
LP2981IM5-5.0/NOPB	Texas Instruments	5V	100mA	0.37V @ 100mA	95 µA	16V	SOT-23-5	Active
LP2981IM5X-5.0/NOPB	Texas Instruments	5V	100mA	0.37V @ 100mA	95 µA	16V	SOT-23-5	Active
LD2981ABM50TR	STMicroelectronics	5V	100mA	0.375V @ 100mA	150 µA	16V	SOT-23-5	Active
LD2981CM50TR	STMicroelectronics	5V	100mA	0.375V @ 100mA	150 µA	16V	SOT-23-5	Active
MIC5203-5.0YM5-TR	Microchip Technology	5V	80mA	0.6V @ 80mA	750 µA	16V	SOT-23-5	Active
MAX8863TEUK+T	Analog Devices Inc./Maxim Integrated	1.25V to 6.5V (Adjustable)	120mA	0.12V @ 50mA	150 µA	6.5V	SOT-23-5	Active

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalent):

TPS76150DBVR is the primary direct replacement for TPS76150DBVT. Both parts share identical electrical specifications, protection features, and performance characteristics. The difference is packaging format: TPS76150DBVR is available in Cut Tape & Digi-Reel format, while TPS76150DBVT was supplied in Cut Tape. Both are ROHS3 compliant and maintain the same operating temperature range.

Active Alternatives (Texas Instruments LP2981 Series):

LP2981IM5-5.0/NOPB and LP2981IM5X-5.0/NOPB are manufacturer-recommended alternatives from Texas Instruments. These parts maintain 5V fixed output at 100mA with identical input voltage ratings and operating temperature range. The LP2981 series exhibits lower quiescent current (95 µA vs. 115 µA) and slightly higher dropout voltage (0.37V vs. 0.28V). Protection features include overcurrent, overtemperature, and short circuit protection. Both are Active status products with ROHS3 compliance.

Cross-Manufacturer Alternatives (STMicroelectronics LD2981 Series):

LD2981ABM50TR and LD2981CM50TR from STMicroelectronics provide functional equivalence with 5V fixed output at 100mA. These parts support 16V maximum input voltage and -40°C to 125°C operating range. Quiescent current is higher at 150 µA, and dropout voltage is 0.375V. Protection includes overcurrent and overtemperature. Both are Active status with ROHS3 compliance.

Limited Current Alternative (Microchip MIC5203):

MIC5203-5.0YM5-TR from Microchip Technology delivers 5V output but with reduced current capacity of 80mA. This part is suitable only for applications requiring less than 80mA output. Quiescent current is significantly higher at 750 µA, and dropout voltage is 0.6V. Use this part only when current requirements do not exceed 80mA.

Not Recommended for Direct Substitution (Maxim MAX8863):

MAX8863TEUK+T is an adjustable regulator with maximum input voltage of 6.5V, making it incompatible with the TPS76150DBVT's 16V input specification. Although it offers higher output current (120mA) and lower dropout voltage (0.12V), the reduced input voltage rating and adjustable output configuration make it unsuitable as a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can I use TPS76150DBVR as a direct replacement for TPS76150DBVT?

A: Yes. TPS76150DBVR is a parametric equivalent with identical electrical specifications, output voltage, current rating, and protection features. The only difference is packaging format (Digi-Reel vs. Cut Tape). Both are ROHS3 compliant and operate across -40°C to 125°C.

Q: What is the key difference between TPS76150DBVT and LP2981IM5-5.0/NOPB?

A: Both deliver 5V at 100mA with 16V input rating and -40°C to 125°C operation. The LP2981 has lower quiescent current (95 µA vs. 115 µA) but higher dropout voltage (0.37V vs. 0.28V). The LP2981 omits reverse polarity and transient voltage protection. For applications sensitive to dropout voltage or requiring comprehensive protection, TPS76150DBVR is preferred.

Q: Can I use MIC5203-5.0YM5-TR in place of TPS76150DBVT?

A: Only if your application requires less than 80mA output current. The MIC5203 is rated for 80mA maximum, below the TPS76150DBVT's 100mA specification. Additionally, quiescent current is significantly higher (750 µA), and dropout voltage is elevated (0.6V). Use this part only when current demand does not exceed 80mA.

Q: Are all substitute parts available in SOT-23-5 packaging?

A: Yes. All listed substitute parts use SOT-23-5 (SC-74A) surface mount packaging, ensuring mechanical and electrical compatibility with the original TPS76150DBVT footprint.

Q: Why is MAX8863TEUK+T not recommended as a substitute?

A: The MAX8863 has a maximum input voltage rating of 6.5V, while the TPS76150DBVT supports 16V input. Applying 16V to the MAX8863 exceeds its absolute maximum rating and will cause device failure. Additionally, the MAX8863 is an adjustable regulator, not a fixed 5V output device.

Q: Which substitute offers the best dropout voltage performance?

A: MAX8863TEUK+T has the lowest dropout voltage at 0.12V @ 50mA. However, it is not recommended due to its 6.5V input voltage limitation. Among compatible alternatives, TPS76150DBVR maintains the original 0.28V dropout voltage specification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting environmental and regulatory requirements equivalent to the original TPS76150DBVT.

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