TPS73130MDBVREP Linear Voltage Regulator 3V 150mA Equivalent & Substitute Parts

Part Overview

The TPS73130MDBVREP is an active linear voltage regulator IC manufactured by Texas Instruments, designed for positive fixed 3V output at 150mA in a surface-mount SOT-23-5 package. This device functions as a low-dropout regulator with integrated protection features including over-current, over-temperature, short-circuit, and reverse-polarity protection. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when component availability changes, supply chain disruptions occur, or design flexibility is required while maintaining functional compatibility within the specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	3V
Output Current	150mA
Input Voltage (Max)	5.5V
Voltage Dropout (Max)	0.1V @ 150mA
Quiescent Current (Iq)	550 µA
Package Type	SOT-23-5 (SC-74A)
Output Configuration	Positive Fixed
Control Features	Enable
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the TPS73130MDBVREP are qualified based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Fixed 3V output voltage
Minimum 150mA output current capability
SOT-23-5 package footprint compatibility
Positive output configuration
Enable control feature
Surface-mount technology
ROHS3 compliance

Secondary Compatibility Parameters:

Input voltage rating (minimum 5.5V tolerance)
Voltage dropout characteristics
Quiescent current specifications
Operating temperature range overlap
Protection feature set (over-current, over-temperature minimum)

Parts are grouped into two categories: direct equivalents matching all primary criteria within specified tolerances, and functional substitutes that meet core requirements with acceptable parameter variations for the intended application.

Parameter Comparison

Parameter	TPS73130MDBVREP	MAX8867EUK30+T	MAX8878EUK30+T	MIC5255-3.0YM5-TR	MIC5305-3.0YD5-TR	RT9193-30GB	TC2185-3.0VCTTR
Manufacturer	Texas Instruments	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Microchip Technology	Microchip Technology	Richtek USA Inc.	Microchip Technology
Output Voltage	3V	3V	3V	3V	3V	3V	3V
Output Current	150mA	150mA	150mA	150mA	150mA	300mA	150mA
Input Voltage (Max)	5.5V	6.5V	6.5V	6V	5.5V	5.5V	6V
Voltage Dropout (Max)	0.1V @ 150mA	0.165V @ 150mA (Typ)	0.165V @ 150mA (Typ)	0.25V @ 150mA	0.85V @ 150mA	0.3V @ 300mA	0.21V @ 150mA
Quiescent Current (Iq)	550 µA	180 µA	180 µA	150 µA	150 µA	130 µA	80 µA
Package Type	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	TSOT-23-5	SOT-23-5	SOT-23-5
Operating Temperature	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and EAR99 export classification consistent with the TPS73130MDBVREP. Selection among qualified substitutes is determined by specific application requirements within the provided electrical parameters.

Direct Equivalents (Recommended Primary Substitutes): MAX8867EUK30+T and MAX8878EUK30+T from Analog Devices Inc./Maxim Integrated maintain identical 3V output, 150mA current rating, and SOT-23-5 packaging. Both devices feature improved quiescent current (180 µA) and higher input voltage tolerance (6.5V maximum). Operating temperature range is -40°C to 85°C, which covers standard industrial applications but does not extend to the -55°C lower limit of the TPS73130MDBVREP.

Functional Substitutes (Extended Temperature or Performance): MIC5255-3.0YM5-TR and MIC5305-3.0YD5-TR from Microchip Technology provide 3V output at 150mA with extended operating temperature to -40°C to 125°C. MIC5255 operates in standard SOT-23-5 packaging with 0.25V dropout. MIC5305 uses TSOT-23-5 (thin variant) with higher dropout (0.85V) but superior PSRR performance (85dB ~ 65dB).

RT9193-30GB from Richtek USA Inc. provides higher output current capability (300mA) in SOT-23-5 packaging with 3V fixed output and extended temperature range. Moisture sensitivity rating is MSL 3 (168 hours), requiring controlled storage conditions compared to MSL 1 of other options.

TC2185-3.0VCTTR from Microchip Technology offers lowest quiescent current (80 µA) with 3V output at 150mA in SOT-23-5 packaging and extended temperature range to -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can MAX8867EUK30+T or MAX8878EUK30+T replace TPS73130MDBVREP in all applications?

A: Both Maxim devices are electrically compatible for 3V 150mA applications. The primary difference is operating temperature range: Maxim parts specify -40°C to 85°C, while TPS73130MDBVREP extends to -55°C. If your application requires operation below -40°C, these substitutes are not suitable. For standard industrial temperature ranges, both are direct functional replacements with improved quiescent current performance.

Q: What is the difference between MIC5255-3.0YM5-TR and MIC5305-3.0YD5-TR?

A: Both Microchip devices provide 3V 150mA output with extended temperature range. MIC5255 uses standard SOT-23-5 packaging with 0.25V dropout at 150mA. MIC5305 uses TSOT-23-5 (thin variant) with higher dropout (0.85V) but superior power supply rejection ratio (PSRR) of 85dB at 1kHz. Package selection depends on PCB space constraints and noise performance requirements.

Q: Why does RT9193-30GB have higher output current (300mA) than the TPS73130MDBVREP (150mA)?

A: RT9193-30GB is rated for 300mA maximum output current, exceeding the 150mA requirement of TPS73130MDBVREP. This device functions as a substitute for 150mA applications and provides additional current headroom for future design flexibility. The 0.3V dropout at 300mA is specified at full rated current; dropout at 150mA operation will be lower.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: Most substitutes are supplied in Tape & Reel packaging. RT9193-30GB is available in Cut Tape (CT) & Digi-Reel® format. Verify packaging format with your supplier to ensure compatibility with automated assembly equipment.

Q: What is the significance of MSL 3 rating for RT9193-30GB?

A: MSL 3 (Moisture Sensitivity Level 3) requires controlled storage at 30°C and 60% relative humidity for a maximum of 168 hours before soldering. Other substitutes carry MSL 1 (unlimited shelf life). If extended storage or humid environment exposure is anticipated, MSL 1 rated parts (MAX8867, MAX8878, MIC5255, MIC5305, TC2185) are preferred.

Q: Can I use TC2185-3.0VCTTR for low-power applications requiring minimal quiescent current?

A: TC2185-3.0VCTTR provides the lowest quiescent current (80 µA) among all listed substitutes, compared to 550 µA for TPS73130MDBVREP. This device is suitable for battery-powered or ultra-low-power applications where standby current is critical. All other electrical parameters (3V output, 150mA current, SOT-23-5 package, extended temperature range) remain compatible.

Q: Is PCB layout modification required when switching between SOT-23-5 and TSOT-23-5 packages?

A: TSOT-23-5 (thin variant) maintains identical pin pitch and footprint as standard SOT-23-5, allowing direct PCB substitution without layout changes. The primary difference is component height; verify clearance in your mechanical design if space constraints exist.

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