TPS73601DCQ Equivalent & Substitute Parts

Part Overview

The TPS73601DCQ is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. It delivers 400mA output current in a compact SOT-223-6 surface mount package. The device features adjustable output voltage ranging from 1.2V to 5.5V with a maximum dropout voltage of 0.2V at full load current.

The TPS73601DCQ carries a Last Time Buy product status, indicating this part number is being phased out. Identifying qualified substitute parts ensures design continuity and supply chain reliability for new production runs and long-term availability.

Substiute Parts

TPS73601DCQ

Texas InstrumentsIn Stock: 99026TPS73601DCQ Datasheet

Current PartRFQ

TPS73601DCQR

Texas InstrumentsIn Stock: 20497TPS73601DCQR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS73601DCQ is determined by strict equivalence across the following critical parameters:

• Identical package type: SOT-223-6 surface mount
• Matching output configuration: Positive adjustable
• Equivalent voltage specifications: Input max 5.5V, output range 1.2V to 5.5V
• Equal or greater output current capability: 400mA minimum
• Matching dropout voltage performance: 0.2V @ 400mA
• Identical control and protection features: Enable control, Over Current, Over Temperature, Reverse Polarity protection
• Operating temperature range: -40°C ~ 125°C
• Regulatory compliance: ROHS3 Compliant

The TPS73601DCQR qualifies as a direct substitute based on full parameter alignment across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The TPS73601DCQR is the qualified substitute for the TPS73601DCQ. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The primary distinction is product status: the TPS73601DCQ is Last Time Buy while the TPS73601DCQR is Active, making the latter the recommended choice for new designs and ongoing production.

Both parts carry ROHS3 compliance and identical regulatory certifications (REACH Unaffected, ECCN EAR99, HTSUS 8542.39.0001). The packaging difference—Tube for the DCQ versus Cut Tape & Digi-Reel for the DCQR—does not affect electrical performance or PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can TPS73601DCQR replace TPS73601DCQ in existing designs?

A: Yes. The TPS73601DCQR is electrically and mechanically identical to the TPS73601DCQ. Both parts share the same SOT-223-6 package, pinout, and all electrical specifications. No circuit modifications are required.

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

A: Packaging format affects supply chain logistics and handling only. Tube packaging is used for lower-volume orders, while Cut Tape & Digi-Reel packaging is standard for high-volume production. The actual component and its performance are identical.

Q: Why is TPS73601DCQ marked as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments is discontinuing this part number. The TPS73601DCQR remains in active production with identical specifications, ensuring long-term availability for new designs.

Q: Are there any compliance differences between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH status, and regulatory classifications. Moisture Sensitivity Level (MSL 2, 1 Year) is the same for both.

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: SOT-223-6 package, positive adjustable output configuration, 400mA output current, 5.5V maximum input voltage, 1.2V to 5.5V output range, 0.2V dropout voltage at 400mA, and -40°C to 125°C operating temperature.