TPS79101DBVR Equivalent & Substitute Parts

Part Overview

The TPS79101DBVR is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This device delivers 100mA output current in a compact SOT-23-6 surface mount package and includes integrated protection features for over-current, over-temperature, reverse polarity, and under-voltage lockout conditions. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution for the TPS79101DBVR is determined by the following critical parameters:

Packaging Compatibility: The main part uses SOT-23-6 package in Cut Tape format. Parametric equivalents maintain identical SOT-23-6 packaging but may differ in tape format (Tape & Reel vs. Cut Tape).

Electrical Specifications: Output current capacity, input/output voltage ranges, quiescent current, and protection features define functional equivalence. Parts with identical or superior electrical ratings within the same voltage and current envelope qualify as substitutes.

Product Status Consideration: The main part is Last Time Buy status. Active or Obsolete status parts may serve as substitutes depending on supply chain requirements and design lifecycle phase.

Packaging Format: Cut Tape (CT) and Tape & Reel (TR) formats are interchangeable for component selection purposes, though procurement and handling differ.

Parameter Comparison

Part Number	Manufacturer	Package	Output Current	Input Voltage (Max)	Output Voltage Range	Iq (µA)	Product Status	Packaging Format
TPS79101DBVR	Texas Instruments	SOT-23-6	100mA	5.5V	1.2V - 5.5V	250	Last Time Buy	Cut Tape
TPS79101DBVT	Texas Instruments	SOT-23-6	100mA	5.5V	1.2V - 5.5V	250	Last Time Buy	Tape & Reel
TPS79201DBVR	Texas Instruments	SOT-23-6	100mA	5.5V	1.2V - 5.5V	250	Active	Tape & Reel
TPS79201DBVT	Texas Instruments	SOT-23-6	100mA	5.5V	1.2V - 5.5V	250	Obsolete	Tape & Reel
TPS78401DBVR	Texas Instruments	SOT-23-5	300mA	6V	1.2V - 5.5V	35	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Parametric Equivalents (Identical Electrical Performance):

TPS79101DBVT and TPS79201DBVR are direct parametric equivalents to TPS79101DBVR. Both maintain 100mA output current, identical voltage ranges (1.2V - 5.5V), and equivalent quiescent current specifications. TPS79201DBVR holds Active product status, providing superior long-term availability compared to the Last Time Buy status of the original part. TPS79101DBVT maintains Last Time Buy status with identical electrical characteristics but differs only in packaging format (Tape & Reel).

Higher-Capacity Alternative (Enhanced Performance):

TPS78401DBVR provides increased output current capacity (300mA vs. 100mA) and lower quiescent current (35 µA vs. 250 µA), making it suitable for applications requiring higher current delivery or improved efficiency. This part uses SOT-23-5 packaging rather than SOT-23-6, requiring PCB layout modification. TPS78401DBVR maintains Active product status and includes PSRR specification (52dB ~ 30dB at 1kHz ~ 1MHz), offering enhanced noise performance. Input voltage maximum is 6V compared to 5.5V.

Obsolete Status Consideration:

TPS79201DBVT is classified as Obsolete and should not be selected for new designs or long-term production applications despite electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can TPS79201DBVR replace TPS79101DBVR in existing designs?

A: Yes. TPS79201DBVR is a direct parametric equivalent with identical electrical specifications (100mA output, 1.2V - 5.5V adjustable range, 250 µA quiescent current). The primary advantage is Active product status, ensuring continued availability. No circuit modifications are required.

Q: What is the difference between TPS79101DBVR and TPS79101DBVT?

A: Both parts are electrically identical with identical SOT-23-6 packaging. The difference is packaging format: DBVR uses Cut Tape format while DBVT uses Tape & Reel format. Selection depends on procurement and assembly process requirements.

Q: When should TPS78401DBVR be used instead of TPS79101DBVR?

A: TPS78401DBVR is appropriate when output current requirements exceed 100mA or when lower quiescent current (35 µA vs. 250 µA) is critical for power efficiency. The trade-off is package change from SOT-23-6 to SOT-23-5, requiring PCB redesign. Input voltage maximum increases to 6V.

Q: Is TPS79201DBVT suitable for new production?

A: No. TPS79201DBVT is classified as Obsolete and should not be selected for new designs. Use TPS79201DBVR (Active status) or TPS79101DBVT (Last Time Buy) instead.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed parts maintain ROHS3 Compliant status and REACH Unaffected classification, meeting current environmental and regulatory requirements.

Q: What are the key parameters that determine substitution eligibility?

A: Output current capacity, input/output voltage ranges, quiescent current, protection features, and package type are the primary determinants. Parts must maintain or exceed the original specifications within the same functional category to qualify as substitutes.

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