TPS76350DBVT Equivalent & Substitute Parts

Part Overview

The TPS76350DBVT is a linear voltage regulator IC from Texas Instruments, classified as a positive fixed output power management integrated circuit. It delivers 5V at 150mA output current in a surface mount SOT-23-5 package. The device is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when original inventory becomes unavailable, when alternative packaging formats are required, or when design specifications permit operation within the electrical and mechanical tolerances of equivalent devices.

Key Parameters

Parameter	Value
Manufacturer Part Number	TPS76350DBVT
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Voltage (Fixed)	5V
Output Current	150mA
Input Voltage (Max)	10V
Voltage Dropout (Max)	0.3V @ 150mA
Quiescent Current	100 µA
PSRR	60dB (1kHz)
Package / Case	SC-74A, SOT-753
Supplier Device Package	SOT-23-5
Operating Temperature	-40°C ~ 125°C
Protection Features	Over Current, Over Temperature, Reverse Polarity
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TPS76350DBVT are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications: 5V fixed output, 150mA output current, 10V maximum input voltage, 0.3V dropout voltage, SOT-23-5 package, and -40°C to 125°C operating temperature range. These parts are direct functional replacements with no circuit redesign required.

Manufacturer Recommended Substitutes operate within allowable parameter variations. Substitution eligibility is determined by: (1) matching 5V fixed output voltage, (2) output current rating equal to or greater than 150mA, (3) maximum input voltage equal to or greater than 10V, (4) compatible SOT-23-5 or SOT-25 surface mount packages, (5) operating temperature range encompassing -40°C to 125°C or higher, and (6) equivalent protection features (Over Current and Over Temperature minimum).

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	Package	Operating Temp	Substitution Type
TPS76350DBVT	Texas Instruments	150mA	10V	0.3V @ 150mA	100 µA	SOT-23-5	-40°C ~ 125°C	Main Part
TPS76350DBVR	Texas Instruments	150mA	10V	0.3V @ 150mA	100 µA	SOT-23-5	-40°C ~ 125°C	Parametric Equivalent
TPS76350QDBVRQ1	Texas Instruments	150mA	10V	0.3V @ 150mA	100 µA	SOT-23-5	-40°C ~ 125°C	Parametric Equivalent (AEC-Q100)
LP2981IM5-5.0/NOPB	Texas Instruments	100mA	16V	0.37V @ 100mA	95 µA	SOT-23-5	-40°C ~ 125°C	MFR Recommended
LP2981IM5X-5.0/NOPB	Texas Instruments	100mA	16V	0.37V @ 100mA	95 µA	SOT-23-5	-40°C ~ 125°C	MFR Recommended
AP2205-50W5-7	Diodes Incorporated	250mA	24V	0.5V @ 150mA	Not specified	SOT-25	-40°C ~ 125°C	MFR Recommended
LD2985BM50R	STMicroelectronics	150mA	16V	0.575V @ 150mA	150 µA	SOT-23-5	-40°C ~ 125°C	MFR Recommended
S-1200B50-M5T1U	ABLIC Inc.	150mA	10V	0.19V @ 100mA	1 µA	SOT-23-5	-40°C ~ 85°C	MFR Recommended
S-814A50AMC-BDOT2U	ABLIC Inc.	180mA	10V	0.21V @ 60mA	500 nA	SOT-23-5	-40°C ~ 85°C	MFR Recommended
XC6209B502MR-G	Torex Semiconductor Ltd	150mA	10V	0.21V @ 100mA	50 µA	SOT-25	-40°C ~ 85°C	MFR Recommended

Engineering Selection Recommendations

Parametric Equivalents (Direct Replacements): TPS76350DBVR and TPS76350QDBVRQ1 are identical electrical and mechanical equivalents to the TPS76350DBVT. Both maintain the same 150mA output current, 10V input voltage rating, 0.3V dropout voltage, and -40°C to 125°C operating range. TPS76350QDBVRQ1 includes AEC-Q100 automotive qualification. Selection between these parts depends on packaging format availability (Cut Tape vs. Tape & Reel) and application grade requirements.

Texas Instruments LP2981 Series (Reduced Output Current): LP2981IM5-5.0/NOPB and LP2981IM5X-5.0/NOPB are suitable when output current requirements do not exceed 100mA. These devices offer higher input voltage tolerance (16V maximum) and improved quiescent current performance (95 µA). The primary trade-off is reduced output current capacity. Packaging differs: LP2981IM5-5.0/NOPB is supplied in Cut Tape format, while LP2981IM5X-5.0/NOPB is supplied in Tape & Reel format.

Diodes Incorporated AP2205-50W5-7 (Increased Output Current): The AP2205-50W5-7 provides 250mA output current and 24V maximum input voltage, suitable for applications requiring higher current delivery or wider input voltage range. The package format is SOT-25 instead of SOT-23-5, requiring PCB layout modification. Dropout voltage is 0.5V at 150mA, slightly higher than the main part.

STMicroelectronics LD2985BM50R (Higher Input Voltage): The LD2985BM50R maintains 150mA output current with 16V maximum input voltage capability. Dropout voltage is 0.575V at 150mA and quiescent current is 150 µA, both higher than the main part. Operating temperature range matches the TPS76350DBVT. This part is suitable when input voltage exceeds 10V.

ABLIC S-1200B50-M5T1U (Ultra-Low Quiescent Current): The S-1200B50-M5T1U delivers 150mA output current with exceptional quiescent current of 1 µA and dropout voltage of 0.19V at 100mA. Maximum input voltage is 10V, matching the main part. Operating temperature range is -40°C to 85°C, which is narrower than the TPS76350DBVT. This part is optimal for battery-powered applications where quiescent current minimization is critical.

ABLIC S-814A50AMC-BDOT2U (Ultra-Low Quiescent Current, Higher Output Current): The S-814A50AMC-BDOT2U provides 180mA output current with 500 nA quiescent current and 0.21V dropout voltage at 60mA. Maximum input voltage is 10V. Operating temperature range is -40°C to 85°C. This part is suitable for low-power applications requiring output current between 150mA and 180mA with minimal quiescent current draw.

Torex XC6209B502MR-G (Low Dropout, Compact Package): The XC6209B502MR-G delivers 150mA output current with 0.21V dropout voltage at 100mA and 50 µA quiescent current. Maximum input voltage is 10V. The package is SOT-25 instead of SOT-23-5. Operating temperature range is -40°C to 85°C. This part is suitable when lower dropout voltage is required and PCB layout permits SOT-25 package accommodation.

Frequently Asked Questions (FAQ)

Q: Can I use LP2981IM5-5.0/NOPB as a direct replacement for TPS76350DBVT?

A: The LP2981IM5-5.0/NOPB is functionally compatible if your circuit draws 100mA or less. The output current rating is reduced from 150mA to 100mA. If your application requires the full 150mA output current, this substitute is not suitable. Both devices share identical 5V output voltage, SOT-23-5 package, and -40°C to 125°C operating temperature range.

Q: What is the difference between TPS76350DBVR and TPS76350QDBVRQ1?

A: Both parts are parametric equivalents with identical electrical specifications: 150mA output current, 10V input voltage, 0.3V dropout voltage, and -40°C to 125°C operating temperature. The primary difference is that TPS76350QDBVRQ1 includes AEC-Q100 automotive qualification, making it suitable for automotive applications. TPS76350DBVR is the standard industrial-grade version. Packaging format may also differ based on supplier availability.

Q: Why does the S-1200B50-M5T1U have a narrower operating temperature range?

A: The S-1200B50-M5T1U operates from -40°C to 85°C, compared to the TPS76350DBVT range of -40°C to 125°C. This is a design characteristic of the ABLIC S-1200 series. If your application requires operation above 85°C, this substitute is not suitable. For applications operating within -40°C to 85°C, the S-1200B50-M5T1U is compatible and offers superior quiescent current performance.

Q: Can I use AP2205-50W5-7 in place of TPS76350DBVT without circuit modifications?

A: The AP2205-50W5-7 requires PCB layout modification because it uses SOT-25 package instead of SOT-23-5. The pin configuration differs, necessitating new PCB footprint design. Electrically, the AP2205-50W5-7 is compatible with higher output current (250mA) and input voltage (24V) capability. Dropout voltage is 0.5V at 150mA, slightly higher than the main part's 0.3V.

Q: Which substitute part has the lowest dropout voltage?

A: The S-814A50AMC-BDOT2U has the lowest dropout voltage at 0.21V at 60mA, followed by XC6209B502MR-G at 0.21V at 100mA and S-1200B50-M5T1U at 0.19V at 100mA. The TPS76350DBVT has 0.3V dropout voltage at 150mA. Lower dropout voltage reduces power dissipation and heat generation, beneficial in battery-powered or thermally constrained applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all substitute parts listed are RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the compliance status of the TPS76350DBVT.

Q: What is the key difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging supplies components in individual strips suitable for manual assembly or small-volume production. Tape & Reel (TR) packaging supplies components on continuous reels suitable for automated assembly equipment. Both formats contain identical components; the difference is in supply format and handling method. Selection depends on production volume and assembly equipment capability.

Q: Can I substitute TPS76350DBVT with LD2985BM50R in a 10V input application?

A: Yes, the LD2985BM50R is compatible in 10V input applications. It maintains 150mA output current and -40°C to 125°C operating temperature. However, dropout voltage is higher at 0.575V compared to 0.3V, resulting in increased power dissipation. Quiescent current is also higher at 150 µA versus 100 µA. Use this substitute only if the higher dropout voltage and quiescent current are acceptable for your application.

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