TPS76325DBVT Equivalent & Substitute Parts

Part Overview

The TPS76325DBVT is a linear voltage regulator IC from Texas Instruments, delivering a fixed 2.5V output at 150mA in a SOT-23-5 surface mount package. This device features integrated over-current, over-temperature, and reverse polarity protection with an enable control function. The part is classified as Last Time Buy, indicating production discontinuation. Alternative equivalent and substitute parts are necessary to ensure design continuity and long-term supply chain reliability for new designs or production transitions.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	2.5V
Output Current	150mA
Input Voltage (Max)	10V
Dropout Voltage (Max)	0.6V @ 150mA
Quiescent Current	100 µA
PSRR	60dB (1kHz)
Operating Temperature Range	-40°C ~ 125°C
Package	SOT-23-5 (SC-74A)
Protection Features	Over Current, Over Temperature, Reverse Polarity
Control Features	Enable

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Output Voltage: Must be fixed at 2.5V
Output Current Capability: Minimum 150mA required for direct replacement; higher ratings acceptable
Input Voltage Range: Maximum input voltage of 10V or greater
Package Type: SOT-23-5 or SOT-25 (pin-compatible alternatives)
Dropout Voltage: Lower values preferred but not mandatory for substitution
Operating Temperature: -40°C to 125°C minimum range
Protection Features: Over-current and over-temperature protection required

Substitute parts are grouped into three categories:

Parametric Equivalents (Texas Instruments): Identical electrical specifications with different packaging or product status
Manufacturer Recommended Alternatives: Higher performance or current capability from alternative manufacturers
Compatible Alternatives: Different electrical characteristics but functionally suitable for the application

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	Package	Product Status	Inventory
TPS76325DBVT	Texas Instruments	150mA	10V	0.6V @ 150mA	100 µA	SOT-23-5	Last Time Buy	4200 Pcs
TPS76325DBVR	Texas Instruments	150mA	10V	0.6V @ 150mA	100 µA	SOT-23-5	Active	17100 Pcs
TPS76325QDBVRG4Q1	Texas Instruments	150mA	10V	0.6V @ 150mA	100 µA	SOT-23-5	Last Time Buy	2200 Pcs
TPS76425DBVR	Texas Instruments	150mA	10V	0.6V @ 150mA	100 µA	SOT-23-5	Active	7950 Pcs
TPS76425DBVT	Texas Instruments	150mA	10V	0.6V @ 150mA	100 µA	SOT-23-5	Active	4512 Pcs
TPS78425QDBVRQ1	Texas Instruments	300mA	6V	0.115V @ 300mA	30 µA	SOT-23-5	Active	10992 Pcs
LD2985BM25R	STMicroelectronics	150mA	16V	0.575V @ 150mA	150 µA	SOT-23-5	Active	110400 Pcs
AP2205-25W5-7	Diodes Incorporated	250mA	24V	0.5V @ 150mA	—	SOT-25	Active	3936 Pcs
S-1200B25-M5T1U	ABLIC Inc.	150mA	10V	0.23V @ 100mA	1 µA	SOT-23-5	Active	714 Pcs
S-L2980A25MC-TF-U	ABLIC Inc.	150mA	10V	0.2V @ 50mA	1 µA	SOT-23-5	Active	927 Pcs
XC6209B252MR-G	Torex Semiconductor Ltd	150mA	10V	0.29V @ 100mA	50 µA	SOT-25	Active	1023 Pcs

Engineering Selection Recommendations

Direct Replacement (Identical Specifications)

TPS76325DBVR is the primary recommended substitute. It maintains identical electrical specifications and package configuration as the TPS76325DBVT while offering Active product status with significantly higher inventory availability (17100 units). The only difference is packaging format (Digi-Reel vs. Cut Tape), which does not affect electrical performance.

Texas Instruments Alternatives (Same Family)

TPS76425DBVR and TPS76425DBVT are functionally equivalent alternatives from the same manufacturer. Both are Active products with identical electrical parameters to the original part. These options provide supply continuity within the TPS76000 series family.

TPS76325QDBVRG4Q1 offers identical specifications with automotive-grade qualification (AEC-Q100), suitable for applications requiring automotive compliance. Product status is Last Time Buy.

Higher Current Capability

TPS78425QDBVRQ1 provides doubled output current (300mA vs. 150mA) with improved dropout voltage (0.115V vs. 0.6V) and lower quiescent current (30 µA vs. 100 µA). Input voltage maximum is reduced to 6V. This part is suitable only if the application can operate within the 6V input limit and does not require the full 10V input range.

Alternative Manufacturers

LD2985BM25R (STMicroelectronics) is a direct functional equivalent with identical 150mA output current and SOT-23-5 package. It supports higher input voltage (16V vs. 10V) and offers the highest inventory availability (110400 units). Dropout voltage is marginally lower (0.575V vs. 0.6V).

S-1200B25-M5T1U and S-L2980A25MC-TF-U (ABLIC Inc.) both deliver 150mA at 2.5V in SOT-23-5 packages with significantly lower quiescent current (1 µA) and improved dropout voltage characteristics. Operating temperature range is limited to -40°C to 85°C. These parts are suitable for low-power applications prioritizing minimal standby current.

AP2205-25W5-7 (Diodes Incorporated) provides 250mA output current with higher input voltage tolerance (24V) in a SOT-25 package. Pin compatibility with SOT-23-5 requires PCB layout verification.

XC6209B252MR-G (Torex Semiconductor Ltd) delivers 150mA in a SOT-25 package with improved dropout voltage (0.29V @ 100mA) and moderate quiescent current (50 µA). Operating temperature range is -40°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Can TPS76325DBVR be used as a direct replacement for TPS76325DBVT?

A: Yes. Both parts are electrically identical with 150mA output current, 2.5V fixed output, 10V maximum input voltage, and SOT-23-5 packaging. The difference is packaging format (Digi-Reel vs. Cut Tape), which does not affect circuit performance. TPS76325DBVR is Active status with higher inventory.

Q: What is the difference between TPS76325 and TPS76425 variants?

A: Both series deliver identical electrical specifications (150mA, 2.5V, 10V input max, SOT-23-5). The primary difference is product status and availability. TPS76425 variants are Active products, while TPS76325DBVT is Last Time Buy. Selection should prioritize Active status parts for new designs.

Q: Can TPS78425QDBVRQ1 replace TPS76325DBVT in all applications?

A: TPS78425QDBVRQ1 is functionally compatible only if the application operates within 6V input voltage maximum. It offers superior performance (300mA output, 0.115V dropout, 30 µA quiescent current) but is not suitable for designs requiring the full 10V input range of the original part.

Q: Is the SOT-25 package (AP2205-25W5-7, XC6209B252MR-G) compatible with SOT-23-5 designs?

A: SOT-25 and SOT-23-5 packages have different pin counts and layouts. PCB redesign is required for substitution. Pin-to-pin compatibility cannot be assumed without detailed datasheet verification.

Q: Which substitute offers the lowest quiescent current?

A: S-1200B25-M5T1U and S-L2980A25MC-TF-U both feature 1 µA quiescent current, significantly lower than the original 100 µA. These parts are optimal for battery-powered or ultra-low-power standby applications. Operating temperature range is limited to -40°C to 85°C.

Q: What is the advantage of LD2985BM25R over TPS76325DBVR?

A: LD2985BM25R provides identical 150mA output and 2.5V regulation in SOT-23-5 package. Key advantages include higher input voltage tolerance (16V vs. 10V), marginally lower dropout voltage (0.575V vs. 0.6V), and exceptional inventory availability (110400 units). It is manufactured by STMicroelectronics, providing supply diversification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification. All parts are REACH Unaffected and classified under ECCN EAR99.

Q: Which substitute is recommended for automotive applications?

A: TPS76325QDBVRG4Q1 carries AEC-Q100 automotive qualification. This part is electrically identical to TPS76325DBVT with automotive-grade certification. Product status is Last Time Buy.

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