TPS79101DBVT Equivalent & Substitute Parts

Part Overview

The TPS79101DBVT 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 is classified as Last Time Buy, indicating end-of-life status. Finding equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring this regulator's specifications.

Substiute Parts

TPS79101DBVT

Texas InstrumentsIn Stock: 1786TPS79101DBVT Datasheet

Current PartRFQ

TPS78401DBVR

Texas InstrumentsIn Stock: 4921TPS78401DBVR Datasheet

MFR RecommendedRFQ

TPS79201DBVR

Texas InstrumentsIn Stock: 5198TPS79201DBVR Datasheet

Parametric EquivalentRFQ

TPS79201DBVT

Texas InstrumentsIn Stock: 2036TPS79201DBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TPS79101DBVT is determined by the following critical parameters: output current capability, input/output voltage ranges, package type, and protection feature set. Substitute parts are grouped into two categories based on these criteria:

Parametric Equivalents maintain identical electrical specifications and package configuration, allowing direct replacement without circuit modification. These parts share the same 100mA output current, 5.5V maximum input voltage, 1.2V to 5.5V output range, and SOT-23-6 package.

Functional Substitutes provide enhanced capabilities in specific parameters while maintaining compatibility with the core application requirements. These parts may differ in output current, quiescent current, or package type but remain suitable for applications where the TPS79101DBVT specifications are met or exceeded.

Parameter Comparison

Engineering Selection Recommendations

TPS79201DBVR is the primary recommended substitute for the TPS79101DBVT. This part is in Active product status and provides identical electrical specifications and package configuration. The TPS79201DBVR maintains 100mA output current, matching voltage ranges, and equivalent protection features. Packaging is available in Tape & Reel format with unlimited moisture sensitivity rating, ensuring long-term storage compatibility.

TPS79201DBVT is a parametric equivalent with identical electrical and package specifications but carries Obsolete product status. This part should be avoided for new designs or long-term supply requirements due to end-of-life classification.

TPS78401DBVR is a functional substitute suitable for applications where enhanced performance is acceptable. This part provides 300mA output current (three times the original specification), lower quiescent current (35 µA versus 250 µA), and extended operating temperature range (-40°C to 125°C). However, the package differs (SOT-23-5 versus SOT-23-6), requiring PCB layout modification. Additionally, reverse polarity protection is not included in this device. This substitute is appropriate only when output current headroom and thermal performance are design priorities and package change is feasible.

Frequently Asked Questions (FAQ)

Q: Can TPS79201DBVR be used as a direct replacement for TPS79101DBVT?

A: Yes. The TPS79201DBVR is a direct replacement. Both parts share identical output current (100mA), voltage specifications (5.5V input max, 1.2V to 5.5V output), package type (SOT-23-6), and protection features. No circuit or PCB modifications are required.

Q: Why is TPS78401DBVR listed as a substitute if the package is different?

A: The TPS78401DBVR is a functional substitute for applications where the core voltage regulation function is required but enhanced specifications are beneficial. The different package (SOT-23-5) requires PCB layout changes. This substitute is appropriate only when design flexibility permits package modification and when the higher output current (300mA) and lower quiescent current (35 µA) provide system-level advantages.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous tape suitable for automated pick-and-place assembly. Cut Tape & Digi-Reel packaging provides smaller quantities cut from the reel. Both formats contain the same component; the difference is in supply format and minimum order quantities.

Q: Should I use TPS79201DBVT as a substitute?

A: No. Although TPS79201DBVT is parametrically equivalent, it carries Obsolete product status, indicating discontinued manufacturing. For new designs or ongoing production, use TPS79201DBVR, which is in Active status and ensures long-term availability.

Q: Does TPS78401DBVR include reverse polarity protection?

A: No. The TPS78401DBVR includes Over Current, Over Temperature, and UVLO protection but does not include reverse polarity protection. If reverse polarity protection is required for your application, this substitute is not suitable.

Q: What is the moisture sensitivity level difference between these parts?

A: TPS79101DBVT, TPS79201DBVR, and TPS79201DBVT have MSL 1 (Unlimited storage). TPS78401DBVR has MSL 2 (1 Year storage limit). MSL 1 parts can be stored indefinitely under controlled conditions, while MSL 2 parts must be used within one year of manufacture if exposed to moisture.