TPS73047DBVT Equivalent & Substitute Parts

Part Overview

The TPS73047DBVT is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 200mA output current at a fixed 4.7V output voltage in a compact SOT-23-5 surface mount package. The part is classified as Obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity.

Substiute Parts

TPS73047DBVT

Texas InstrumentsIn Stock: 4086TPS73047DBVT Datasheet

Current PartRFQ

TPS7A2601DRVR

Texas InstrumentsIn Stock: 20414TPS7A2601DRVR Datasheet

MFR RecommendedRFQ

TPS73047DBVR

Texas InstrumentsIn Stock: 2402TPS73047DBVR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TPS73047DBVT is determined by the following critical parameters:

Parametric Equivalence Criteria:

• Output voltage matching (4.7V fixed output)
• Output current capability (minimum 200mA)
• Input voltage range compatibility (maximum 5.5V)
• Package compatibility (SOT-23-5 form factor)
• Output configuration (positive fixed regulator)
• Protection features (Over Current, Over Temperature, UVLO)

Substitute Categories:

1. Parametric Equivalent (Direct Replacement): TPS73047DBVR matches all electrical specifications and package requirements, differing only in product status (Last Time Buy vs. Obsolete) and inventory availability.

2. Functional Equivalent (Design Alternative): TPS7A2601DRVR provides enhanced capabilities including adjustable output voltage, higher output current (500mA), and improved quiescent current performance. This part requires circuit redesign for fixed 4.7V output configuration but offers superior performance characteristics and Active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification): Select TPS73047DBVR when pin-for-pin compatibility and identical electrical performance are required. This part maintains all specifications of the original TPS73047DBVT while offering Last Time Buy status, providing a transition path before complete obsolescence. Verify inventory availability prior to design lock.

For Long-Term Production Support: Select TPS7A2601DRVR for new designs or production continuation beyond Last Time Buy windows. This part carries Active product status from Texas Instruments, ensuring sustained availability and manufacturing support. Circuit redesign is required to configure the adjustable output for fixed 4.7V operation using external resistor divider networks. The enhanced performance characteristics (lower quiescent current, higher output current capability, improved PSRR) provide design margin benefits. Package change from SOT-23-5 to 6-WSON requires PCB layout modification.

Compliance Considerations: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and identical operating temperature ranges (-40°C ~ 125°C). Moisture sensitivity levels are equivalent across all options.

Frequently Asked Questions (FAQ)

Q: Can TPS73047DBVR be used as a direct drop-in replacement for TPS73047DBVT? A: Yes. TPS73047DBVR is electrically and mechanically identical to TPS73047DBVT. Both devices feature the same SOT-23-5 package, 4.7V fixed output voltage, 200mA output current, and protection features. The primary difference is product status (Last Time Buy vs. Obsolete).

Q: What circuit modifications are required to use TPS7A2601DRVR as a substitute? A: TPS7A2601DRVR is an adjustable output regulator requiring external resistor divider networks to set the output voltage to 4.7V. Additionally, the package changes from SOT-23-5 to 6-WSON (2x2), necessitating PCB layout redesign. Feedback network design must follow Texas Instruments application guidelines for the TPS7A2601 device family.

Q: Why would I choose TPS7A2601DRVR over TPS73047DBVR? A: TPS7A2601DRVR offers Active product status, ensuring long-term availability and manufacturing support. It provides superior performance with 5 µA quiescent current (versus 250 µA), 500mA output current capability (versus 200mA), and extended input voltage range (18V maximum versus 5.5V). These characteristics support designs requiring lower power consumption or higher current delivery.

Q: Are there package compatibility issues between these substitutes? A: TPS73047DBVT and TPS73047DBVR both use SOT-23-5 packages and are pin-compatible. TPS7A2601DRVR uses a 6-WSON (2x2) package, requiring PCB redesign and cannot be used as a direct drop-in replacement without layout modifications.

Q: Do all substitute parts meet the same compliance standards? A: Yes. TPS73047DBVR and TPS7A2601DRVR are both ROHS3 compliant, REACH Unaffected, and rated for -40°C ~ 125°C operating temperature. Moisture sensitivity levels are equivalent (MSL 1 - Unlimited) across all parts.

Q: What is the significance of "Last Time Buy" status for TPS73047DBVR? A: Last Time Buy status indicates that Texas Instruments will accept orders for a limited period before discontinuing the part. Designs using TPS73047DBVR should transition to TPS7A2601DRVR or alternative solutions to ensure long-term production continuity.