TPS72215DBVR Equivalent & Substitute Parts

Part Overview

The TPS72215DBVR is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. It delivers a fixed positive 1.5V output at 50mA in a compact SOT-23-5 surface mount package. The device features integrated protection against overcurrent, overtemperature, and reverse polarity conditions, with an enable control feature for power management applications.

The TPS72215DBVR is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance of systems utilizing this regulator.

Key Parameters

Parameter	Value
Manufacturer Part Number	TPS72215DBVR
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Voltage (Fixed)	1.5V
Output Current	50mA
Input Voltage (Max)	5.5V
Voltage Dropout (Max)	0.1V @ 50mA
Quiescent Current (Iq)	120 µA
PSRR	48dB (100Hz)
Package / Case	SC-74A, SOT-753 (SOT-23-5)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TPS72215DBVR is determined by the following critical parameters:

Primary Substitution Criteria:

Output voltage: 1.5V fixed
Package type: SOT-23-5 (SC-74A, SOT-753)
Mounting type: Surface mount
Output configuration: Positive fixed
Control features: Enable capability
Protection features: Overcurrent and overtemperature protection
Compliance: ROHS3 compliant

Secondary Considerations:

Output current capacity (50mA minimum required)
Voltage dropout characteristics
Quiescent current performance
Operating temperature range (-40°C ~ 125°C preferred)
Product status (active preferred over obsolete)

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications) and manufacturer-recommended alternatives (higher current capacity or enhanced performance in the same package).

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout (Max)	Iq (µA)	Package	Status
TPS72215DBVR	Texas Instruments	1.5V	50mA	5.5V	0.1V @ 50mA	120	SOT-23-5	Obsolete
TPS72215DBVT	Texas Instruments	1.5V	50mA	5.5V	0.1V @ 50mA	120	SOT-23-5	Active
LP5951MF-1.5/NOPB	Texas Instruments	1.5V	150mA	5.5V	0.35V @ 150mA	55	SOT-23-5	Active
LP5951MFX-1.5/NOPB	Texas Instruments	1.5V	150mA	5.5V	0.35V @ 150mA	55	SOT-23-5	Active
RT9013-15GB	Richtek USA Inc.	1.5V	500mA	5.5V	0.4V @ 500mA	50	SOT-23-5	Active
RT9198-15GBR	Richtek USA Inc.	1.5V	300mA	5.5V	0.33V @ 300mA	130	SOT-23-5	Active
S-1135C15-M5T1U	ABLIC Inc.	1.5V	300mA	5.5V	Not specified	1	SOT-23-5	Obsolete

Engineering Selection Recommendations

Parametric Equivalent (Recommended Primary Substitute):

TPS72215DBVT is the direct parametric equivalent to TPS72215DBVR. Both parts share identical electrical specifications (1.5V output, 50mA current, 0.1V dropout at 50mA, 120 µA quiescent current) and package configuration. The primary distinction is product status: TPS72215DBVT is active, ensuring long-term availability and supply chain support. This part is suitable for direct replacement in existing designs without circuit modification.

Higher Current Capacity Alternatives (Active Status):

LP5951MF-1.5/NOPB and LP5951MFX-1.5/NOPB are manufacturer-recommended alternatives from Texas Instruments offering 150mA output current capacity. Both maintain the 1.5V output voltage, SOT-23-5 package, and active product status. These parts are suitable for applications requiring higher current headroom while maintaining design compatibility. The increased quiescent current efficiency (55 µA versus 120 µA) provides improved power consumption characteristics.

RT9013-15GB (Richtek) provides 500mA output current in SOT-23-5 package with active status. This part accommodates significantly higher current demands while maintaining 1.5V output and 5.5V maximum input voltage. Operating temperature range is -40°C to 85°C (versus -40°C to 125°C for TPS72215DBVR).

RT9198-15GBR (Richtek) delivers 300mA output current with active status and extended operating temperature range (-40°C to 125°C). This part balances increased current capacity with thermal performance matching the original device.

Obsolete Status Consideration:

S-1135C15-M5T1U (ABLIC) is listed as obsolete and should not be selected for new designs or long-term production applications. This part is included for reference only in legacy system maintenance scenarios.

Frequently Asked Questions (FAQ)

Q: Can TPS72215DBVT directly replace TPS72215DBVR without circuit changes?

A: Yes. TPS72215DBVT is a parametric equivalent with identical output voltage (1.5V), output current (50mA), dropout voltage (0.1V @ 50mA), and package configuration (SOT-23-5). The only difference is product status (active versus obsolete). No circuit modifications are required.

Q: What is the key difference between TPS72215DBVR and the LP5951 series?

A: The LP5951 series (LP5951MF-1.5/NOPB and LP5951MFX-1.5/NOPB) maintains the same 1.5V output voltage and SOT-23-5 package but provides 150mA output current capacity compared to 50mA. Dropout voltage increases to 0.35V at rated current. These parts are suitable for applications requiring higher current delivery.

Q: Are all substitute parts available in the same SOT-23-5 package?

A: Yes. All listed substitute parts use the SOT-23-5 package (SC-74A, SOT-753 designation), ensuring mechanical and electrical compatibility with existing PCB layouts and sockets.

Q: Which substitute part offers the best quiescent current performance?

A: S-1135C15-M5T1U (ABLIC) provides the lowest quiescent current at 1 µA. However, this part is obsolete. Among active alternatives, RT9013-15GB offers 50 µA quiescent current, compared to 120 µA for the original TPS72215DBVR.

Q: What is the operating temperature range difference between substitutes?

A: TPS72215DBVR, TPS72215DBVT, LP5951 series, and RT9198-15GBR support -40°C to 125°C. RT9013-15GB and RT9013-18GB operate over -40°C to 85°C, a narrower range. Select based on application thermal requirements.

Q: Can I use a higher current-rated substitute in a design originally specified for 50mA?

A: Yes. Higher current-rated parts (LP5951 at 150mA, RT9013 at 500mA, RT9198 at 300mA) are backward-compatible with 50mA designs. The regulator will deliver only the current demanded by the load. Verify dropout voltage and quiescent current specifications for power budget calculations.

Q: What compliance certifications apply to all substitute parts?

A: All listed parts are ROHS3 compliant and REACH unaffected. All carry EAR99 export classification and HTSUS code 8542.39.0001.

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