TPS79201DBVT Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The TPS79201DBVT is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This Surface Mount device operates as a single-output 100mA regulator in SOT-23-6 packaging. The main part is classified as Obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity. Substitute parts must maintain functional compatibility across voltage regulation, output current capacity, and thermal management requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	TPS79201DBVT
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Package / Case	SOT-23-6
Output Configuration	Positive
Output Type	Adjustable
Voltage - Input (Max)	5.5V
Voltage - Output (Min/Fixed)	1.2V
Voltage - Output (Max)	5.5V
Current - Output	100mA
Current - Quiescent (Iq)	250 µA
Operating Temperature	-40°C ~ 85°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TPS79201DBVT is determined by the following critical parameters:

Output Current Capacity: Substitute parts must support minimum 100mA output current
Voltage Range: Input maximum 5.5V or higher; output adjustable range 1.2V to 5.5V or compatible
Package Compatibility: SOT-23-6 or equivalent pinout for direct board-level replacement
Regulatory Compliance: ROHS3 compliance and Surface Mount mounting type
Product Status: Active or Last Time Buy status preferred over Obsolete

The substitute parts are grouped as follows:

MFR Recommended Substitute: TPS79201DBVR — Direct equivalent with identical electrical specifications but different packaging (Tape & Reel vs. original Tape & Reel designation).

MFR Recommended Substitute: TPS78401DBVR — Higher current capacity (300mA) with enhanced performance characteristics, different package footprint (SOT-23-5).

Parametric Equivalent: TPS79101DBVT — Matching output current and voltage specifications with Last Time Buy status.

Parameter Comparison

Parameter	TPS79201DBVT (Main)	TPS79201DBVR	TPS78401DBVR	TPS79101DBVT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Output Configuration	Positive	Positive	Positive	Positive
Output Type	Adjustable	Adjustable	Adjustable	Adjustable
Voltage - Input (Max)	5.5V	5.5V	6V	5.5V
Voltage - Output (Min/Fixed)	1.2V	1.2V	1.2V	1.2V
Voltage - Output (Max)	5.5V	5.5V	5.5V	5.5V
Current - Output	100mA	100mA	300mA	100mA
Current - Quiescent (Iq)	250 µA	250 µA	35 µA	250 µA
Package / Case	SOT-23-6	SOT-23-6	SOT-23-5	SOT-23-6
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 85°C
Product Status	Obsolete	Active	Active	Last Time Buy
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

TPS79201DBVR is the primary substitute for direct replacement. It maintains identical electrical specifications and SOT-23-6 packaging while offering Active product status, ensuring long-term availability and supply chain stability.

TPS78401DBVR is suitable for applications requiring higher output current capacity (300mA vs. 100mA) or extended operating temperature range (-40°C to 125°C). This part operates in SOT-23-5 package, requiring PCB layout modification. Lower quiescent current (35 µA vs. 250 µA) provides improved efficiency in battery-powered applications. Active product status ensures continued support.

TPS79101DBVT provides parametric equivalence with matching 100mA output current and SOT-23-6 packaging. Last Time Buy status indicates limited future availability; this option is suitable only for designs where supply continuity is not critical.

All substitute parts maintain ROHS3 compliance and Surface Mount mounting compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can TPS78401DBVR replace TPS79201DBVT in existing designs without modification?

A: TPS78401DBVR differs in package footprint (SOT-23-5 vs. SOT-23-6), requiring PCB layout changes. However, electrical functionality is compatible for applications operating at or below 100mA output current. Pin configuration differences must be verified against schematic requirements.

Q: What is the primary advantage of TPS78401DBVR over TPS79201DBVR?

A: TPS78401DBVR provides 300mA output current capacity and 35 µA quiescent current compared to TPS79201DBVR's 100mA and 250 µA respectively. Extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C) supports wider environmental applications.

Q: Is TPS79101DBVT recommended for new designs?

A: TPS79101DBVT carries Last Time Buy status, indicating limited production availability. TPS79201DBVR with Active status is preferred for new designs requiring long-term supply assurance.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts maintain ROHS3 compliance, matching the original TPS79201DBVT regulatory status.

Q: What packaging considerations apply to substitution?

A: TPS79201DBVR and TPS79101DBVT use SOT-23-6 packaging, enabling direct PCB footprint compatibility. TPS78401DBVR uses SOT-23-5 packaging, requiring PCB redesign. Verify pin assignments and thermal pad requirements for each package variant.

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