TPS79650DCQ Equivalent & Substitute Parts

Part Overview

The TPS79650DCQ is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output at 1A current capacity in a SOT-223-6 surface mount package. This device provides regulated power management with integrated protection features including over-current, over-temperature, reverse polarity, and under-voltage lockout (UVLO) protection.

The TPS79650DCQ carries a Last Time Buy product status, indicating this part number is being phased out. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications currently using this regulator.

Substiute Parts

TPS79650DCQ

Texas InstrumentsIn Stock: 1270TPS79650DCQ Datasheet

Current PartRFQ

TPS79650DCQR

Texas InstrumentsIn Stock: 2308TPS79650DCQR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS79650DCQ is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 5V
• Output current rating of 1A minimum
• Maximum input voltage of 5.5V or greater
• Voltage dropout specification of 0.3V @ 1A or lower
• SOT-223-6 package compatibility
• Identical protection feature set (Over Current, Over Temperature, Reverse Polarity, UVLO)
• Enable control functionality
• Operating temperature range of -40°C to 125°C or wider

The TPS79650DCQR meets all substitution criteria as a direct equivalent part from the same manufacturer and product family.

Parameter Comparison

Engineering Selection Recommendations

The TPS79650DCQR is the direct substitute for the TPS79650DCQ. Both parts are manufactured by Texas Instruments with identical electrical specifications and package configuration. The primary distinction is product lifecycle status: the TPS79650DCQ is designated Last Time Buy while the TPS79650DCQR maintains Active product status, ensuring long-term availability and supply chain continuity.

Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The TPS79650DCQR is available in Cut Tape and Digi-Reel packaging formats, providing flexibility for different procurement and assembly workflows compared to the tube packaging of the TPS79650DCQ.

For new designs or production transitions, the TPS79650DCQR is the recommended selection due to its active product status and equivalent performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the TPS79650DCQR directly replace the TPS79650DCQ in existing designs?

A: Yes. The TPS79650DCQR is electrically and mechanically identical to the TPS79650DCQ. Both parts share the same output voltage, current rating, dropout voltage, protection features, and SOT-223-6 package configuration. No circuit modifications are required.

Q: What is the difference between the TPS79650DCQ and TPS79650DCQR?

A: The parts are functionally equivalent. The TPS79650DCQ is Last Time Buy status, while the TPS79650DCQR is Active status. Packaging differs: TPS79650DCQ is supplied in tubes, while TPS79650DCQR is available in Cut Tape and Digi-Reel formats.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical RoHS3 compliance and REACH unaffected status. Regulatory certifications and environmental compliance are equivalent.

Q: Which part should be selected for new production?

A: The TPS79650DCQR should be selected for new designs and production runs due to its Active product status, ensuring sustained availability and supply chain support.

Q: Is the SOT-223-6 package identical between both parts?

A: Yes. Both the TPS79650DCQ and TPS79650DCQR use the SOT-223-6 surface mount package with identical pinout and mechanical dimensions. PCB layout and assembly processes remain unchanged.