TPS73233DCQ Equivalent & Substitute Parts

Part Overview

The TPS73233DCQ is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications with 250mA current capacity in a SOT-223-6 surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited availability. The TPS73233DCQR serves as the manufacturer-recommended substitute, offering identical electrical specifications with improved packaging options and active product status.

Substiute Parts

TPS73233DCQ

Texas InstrumentsIn Stock: 1109TPS73233DCQ Datasheet

Current PartRFQ

TPS73233DCQR

Texas InstrumentsIn Stock: 6261TPS73233DCQR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TPS73233DCQR qualifies as a direct substitute for the TPS73233DCQ based on the following criteria:

• Identical output voltage specification (3.3V fixed)
• Matching output current rating (250mA)
• Same input voltage maximum (5.5V)
• Equivalent dropout voltage performance (0.15V @ 250mA)
• Identical quiescent current (550 µA)
• Same package footprint (SOT-223-6)
• Matching operating temperature range (-40°C to 125°C)
• Identical protection feature set (Over Current, Over Temperature, Short Circuit, Reverse Polarity)
• Same series designation (TPS732xx)

The substitution is valid across all electrical and mechanical parameters specified for this product category.

Parameter Comparison

Engineering Selection Recommendations

The TPS73233DCQR is the appropriate selection for new designs and replenishment orders. The original TPS73233DCQ, designated as Last Time Buy, has limited availability (1084 pcs) compared to the substitute (6195 pcs). Both parts maintain identical electrical performance and comply with ROHS3 and REACH requirements. The TPS73233DCQR offers superior supply chain accessibility through multiple packaging formats (Cut Tape and Digi-Reel) while maintaining full compatibility with existing PCB layouts and thermal characteristics. No design modifications are required when transitioning between these parts.

Frequently Asked Questions (FAQ)

Q: Can TPS73233DCQR replace TPS73233DCQ in existing designs? A: Yes. Both parts are electrically and mechanically identical across all specified parameters. PCB layout, thermal management, and circuit design remain unchanged.

Q: What is the difference between Tube and Cut Tape packaging? A: Tube packaging (TPS73233DCQ) is suitable for lower-volume applications, while Cut Tape and Digi-Reel packaging (TPS73233DCQR) accommodates both manual and automated assembly processes with improved handling for high-volume production.

Q: Are there any compliance differences between the two parts? A: No. Both parts maintain identical RoHS3 compliance, REACH status, and regulatory certifications (ECCN: EAR99, HTSUS: 8542.39.0001).

Q: Why is TPS73233DCQ marked as Last Time Buy? A: Last Time Buy status indicates the manufacturer has discontinued this specific packaging variant. The TPS73233DCQR represents the active production equivalent with identical specifications.

Q: What protection features are included in both parts? A: Both the TPS73233DCQ and TPS73233DCQR include Over Current, Over Temperature, Short Circuit, and Reverse Polarity protection.

Q: Is the SOT-223-6 package footprint identical between both parts? A: Yes. Both parts use the same SOT-223-6 surface mount package with identical pin configuration and thermal characteristics.