TPS73213DBVT Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The TPS73213DBVT is a linear voltage regulator IC from Texas Instruments, classified as a positive fixed output regulator delivering 250mA at 1.3V. This device operates in the Power Management (PMIC) category and is packaged in SOT-23-5 surface mount configuration. The product status is listed as Obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement planning.

Substiute Parts

TPS73213DBVT

Texas InstrumentsIn Stock: 1953TPS73213DBVT Datasheet

Current PartRFQ

TPS78401DBVR

Texas InstrumentsIn Stock: 4921TPS78401DBVR Datasheet

MFR RecommendedRFQ

TPS73213DBVR

Texas InstrumentsIn Stock: 7827TPS73213DBVR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TPS73213DBVT is determined by the following critical parameters:

Parametric Equivalence Criteria:

• Package compatibility: SOT-23-5 surface mount configuration
• Output voltage: 1.3V fixed output
• Output current capability: minimum 250mA
• Input voltage range: maximum 5.5V
• Dropout voltage: maximum 0.15V @ 250mA
• Operating temperature range: -40°C ~ 125°C
• Control features: Enable function
• Protection features: Over Current, Over Temperature, Short Circuit, Reverse Polarity

Manufacturer Recommended Substitute: The TPS78401DBVR is listed as the manufacturer-recommended substitute. This part operates as a positive adjustable regulator with 300mA output capability in the same SOT-23-5 package. While the output type differs (adjustable vs. fixed), the adjustable configuration can be configured to deliver the required 1.3V output, providing functional equivalence with enhanced current capacity.

Parametric Equivalent: The TPS73213DBVR is a parametric equivalent offering identical electrical specifications to the main part, differing only in packaging format (Tape & Reel vs. Cut Tape & Digi-Reel®) and product status (Last Time Buy vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalent): The TPS73213DBVR is the optimal choice for direct substitution. It maintains identical electrical specifications and protection features as the TPS73213DBVT, with the only difference being packaging format and product status. This part is in Last Time Buy status, providing a transition path before full obsolescence.

For Long-Term Availability (Manufacturer Recommended): The TPS78401DBVR is the manufacturer-recommended substitute and carries Active product status, ensuring continued availability. This adjustable regulator requires external resistor network configuration to set the 1.3V output but delivers superior quiescent current performance (35 µA vs. 550 µA) and higher output current capability (300mA vs. 250mA). The increased dropout voltage (0.3V @ 300mA) and higher input voltage rating (6V vs. 5.5V) provide additional design margin in certain applications.

Both substitute parts maintain ROHS3 compliance and identical operating temperature ranges. Selection between these options depends on procurement timeline, design flexibility for adjustable output configuration, and power efficiency requirements.

Frequently Asked Questions (FAQ)

Q: Can the TPS78401DBVR directly replace the TPS73213DBVT without circuit modifications?

A: The TPS78401DBVR requires external resistor network configuration to set the output voltage to 1.3V, whereas the TPS73213DBVT provides fixed 1.3V output. Direct pin-for-pin replacement is not possible without adding feedback resistors. However, the same SOT-23-5 package accommodates this configuration within typical PCB layout constraints.

Q: What is the difference between the TPS73213DBVT and TPS73213DBVR?

A: These parts are parametrically identical. The primary difference is packaging format: TPS73213DBVT is supplied in Tape & Reel (TR) format, while TPS73213DBVR is supplied in Cut Tape (CT) & Digi-Reel® format. Product status also differs, with TPS73213DBVT listed as Obsolete and TPS73213DBVR as Last Time Buy.

Q: Why is the TPS78401DBVR recommended as a substitute if it has higher dropout voltage?

A: The TPS78401DBVR is manufacturer-recommended due to its Active product status, ensuring long-term availability and supply chain continuity. The increased dropout voltage (0.3V vs. 0.15V) is acceptable in most applications where input voltage headroom exceeds 1.6V. The superior quiescent current (35 µA vs. 550 µA) provides significant power efficiency benefits in battery-powered designs.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the SC-74A, SOT-753 package with SOT-23-5 pin configuration, ensuring identical PCB footprint compatibility. No layout modifications are required for mechanical fit.

Q: What protection features are maintained across all substitute options?

A: The TPS73213DBVT and TPS73213DBVR both provide Over Current, Over Temperature, Short Circuit, and Reverse Polarity protection. The TPS78401DBVR provides Over Current, Over Temperature, and UVLO (Under Voltage Lock-Out) protection, offering comparable robustness with different protection topology.

Q: Which substitute should be selected for new designs?

A: For new designs, the TPS78401DBVR is the preferred choice due to Active product status and long-term availability. The adjustable output configuration provides design flexibility for future voltage requirement changes. For existing designs requiring minimal modification, the TPS73213DBVR offers immediate compatibility with identical specifications.