TPS76950DBVT Equivalent & Substitute Parts

Part Overview

The TPS76950DBVT is a linear voltage regulator IC from Texas Instruments, classified as a positive fixed output 5V, 100mA power management device in SOT-23-5 surface mount packaging. This part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for applications requiring 5V regulation at 100mA output capacity.

Key Parameters

Parameter	Value
Manufacturer Part Number	TPS76950DBVT
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Voltage (Fixed)	5V
Output Current	100mA
Input Voltage (Max)	10V
Voltage Dropout (Max)	0.17V @ 100mA
Quiescent Current (Iq)	28 µA
PSRR	60dB (1kHz)
Package / Case	SC-74A, SOT-753 (SOT-23-5)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Protection Features	Over Current, Over Temperature, Reverse Polarity
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TPS76950DBVT is determined by the following critical parameters:

Primary Substitution Criteria:

Output voltage: 5V fixed
Package type: SOT-23-5 (SC-74A, SOT-753)
Mounting type: Surface Mount
Output current capability: minimum 100mA
Input voltage range: compatible with 10V maximum input
Voltage dropout: acceptable for application requirements
Operating temperature range: -40°C to 125°C minimum
RoHS3 compliance

Substitution Categories:

Parametric Equivalents — Parts with identical electrical specifications (100mA output, 0.17V dropout, 28µA Iq, 60dB PSRR) in the same package, differing only in packaging format (Cut Tape vs. Tape & Reel) or product status (Active vs. Last Time Buy).

Manufacturer Recommended Upgrades — Parts with enhanced specifications (higher output current, lower quiescent current, improved PSRR, higher input voltage rating) that maintain full backward compatibility while offering performance improvements.

Cross-Manufacturer Alternatives — Parts from ABLIC Inc. with equivalent or superior electrical performance, same package, and compatible operating parameters.

Parameter Comparison

Part Number	Manufacturer	Output Current	Voltage Dropout (Max)	Quiescent Current (Iq)	PSRR	Input Voltage (Max)	Operating Temp	Product Status	Packaging
TPS76950DBVT	Texas Instruments	100mA	0.17V @ 100mA	28 µA	60dB (1kHz)	10V	-40°C ~ 125°C	Last Time Buy	Cut Tape (CT)
TPS76950DBVR	Texas Instruments	100mA	0.17V @ 100mA	28 µA	60dB (1kHz)	10V	-40°C ~ 125°C	Active	Cut Tape (CT) & Digi-Reel®
TPS76950QDBVRG4Q1	Texas Instruments	100mA	0.17V @ 100mA	28 µA	60dB (1kHz)	10V	-40°C ~ 125°C	Active	Tape & Reel (TR)
TPS76950QDBVRQ1	Texas Instruments	100mA	0.17V @ 100mA	28 µA	60dB (1kHz)	10V	-40°C ~ 125°C	Active	Tape & Reel (TR)
TPS7A2450DBVR	Texas Instruments	200mA	0.25V @ 200mA	4.5 µA	75dB ~ 62dB (10Hz ~ 1kHz)	18V	-40°C ~ 125°C	Active	Cut Tape (CT) & Digi-Reel®
S-1200B50-M5T1U	ABLIC Inc.	150mA	0.19V @ 100mA	1 µA	65dB (1kHz)	10V	-40°C ~ 85°C	Active	Tape & Reel (TR)
S-814A50AMC-BDOT2U	ABLIC Inc.	180mA	0.21V @ 60mA	500 nA	45dB (100Hz)	10V	-40°C ~ 85°C	Active	Cut Tape (CT)
S-L2980A50MC-TF-U	ABLIC Inc.	150mA	0.14V @ 50mA	1 µA	65dB (1kHz)	10V	-40°C ~ 85°C	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Direct Replacement (Parametric Equivalents):

TPS76950DBVR, TPS76950QDBVRG4Q1, and TPS76950QDBVRQ1 are parametric equivalents of the TPS76950DBVT with identical electrical specifications. All three are Active status parts, eliminating end-of-life concerns. Selection between these should be based on packaging requirements: TPS76950DBVR is available in Cut Tape and Digi-Reel formats; TPS76950QDBVRG4Q1 and TPS76950QDBVRQ1 are supplied in Tape & Reel. The automotive-qualified variants (TPS76950QDBVRG4Q1 and TPS76950QDBVRQ1) carry AEC-Q100 qualification and are suitable for automotive applications.

Performance-Enhanced Replacement:

TPS7A2450DBVR is a manufacturer-recommended upgrade offering 200mA output current (2x the original), improved quiescent current (4.5µA vs. 28µA), higher PSRR (75dB ~ 62dB), and extended input voltage rating (18V vs. 10V). This part maintains full backward compatibility in SOT-23-5 packaging and Active product status. Use this part when design margins permit higher current capability or when reduced quiescent current is beneficial for battery-powered applications.

Cross-Manufacturer Alternatives:

ABLIC Inc. parts (S-1200B50-M5T1U, S-814A50AMC-BDOT2U, S-L2980A50MC-TF-U) provide active alternatives with output currents ranging from 150mA to 180mA. All maintain 5V fixed output, SOT-23-5 packaging, and 10V maximum input voltage. Operating temperature range is limited to -40°C ~ 85°C (vs. 125°C for TPS76950DBVT). S-L2980A50MC-TF-U offers the lowest voltage dropout (0.14V @ 50mA) and lowest quiescent current (1µA), making it suitable for low-power applications. S-814A50AMC-BDOT2U provides the highest output current (180mA) with ultra-low quiescent current (500nA).

Frequently Asked Questions (FAQ)

Q: Can I use TPS7A2450DBVR as a direct replacement for TPS76950DBVT?

A: Yes, with design considerations. TPS7A2450DBVR is pin-compatible in SOT-23-5 packaging and maintains 5V output. However, it provides 200mA output current versus 100mA, higher input voltage rating (18V vs. 10V), and lower quiescent current (4.5µA vs. 28µA). These are improvements that do not create compatibility issues. Verify that your PCB layout and thermal design accommodate the enhanced performance characteristics.

Q: What is the difference between TPS76950DBVR and TPS76950QDBVRQ1?

A: Both are parametric equivalents with identical electrical specifications (100mA, 0.17V dropout, 28µA Iq, 60dB PSRR). The primary differences are packaging format (TPS76950DBVR: Cut Tape & Digi-Reel; TPS76950QDBVRQ1: Tape & Reel) and automotive qualification (TPS76950QDBVRQ1 carries AEC-Q100 certification). Select TPS76950QDBVRQ1 for automotive applications; otherwise, either part is functionally equivalent.

Q: Why do ABLIC parts have lower operating temperature maximums (-40°C ~ 85°C vs. -40°C ~ 125°C)?

A: Operating temperature range is a specified design parameter that reflects the manufacturer's thermal and reliability testing. ABLIC parts are rated to 85°C maximum junction temperature, while Texas Instruments TPS76950 variants are rated to 125°C. For applications requiring operation above 85°C, use Texas Instruments parts. For standard industrial applications (≤85°C), ABLIC alternatives are suitable.

Q: Is S-L2980A50MC-TF-U a better choice than TPS76950DBVT?

A: S-L2980A50MC-TF-U offers advantages in specific design scenarios: lower voltage dropout (0.14V @ 50mA vs. 0.17V @ 100mA), lower quiescent current (1µA vs. 28µA), and higher output current (150mA vs. 100mA). However, it is limited to -40°C ~ 85°C operating temperature. Select this part for battery-powered or low-power applications where quiescent current is critical and operating temperature does not exceed 85°C.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed (Texas Instruments and ABLIC) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can I mix packaging formats (Cut Tape vs. Tape & Reel) in production?

A: Packaging format affects supply chain logistics and assembly processes but does not affect electrical performance or PCB compatibility. TPS76950DBVR (Cut Tape & Digi-Reel) and TPS76950QDBVRQ1 (Tape & Reel) are electrically identical. Verify that your assembly equipment and supply chain processes support your chosen packaging format.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message