TPS71501MDCKREP Equivalent & Substitute Parts

Part Overview

The TPS71501MDCKREP is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. It delivers 50mA output current in a compact SC-70-5 surface mount package. The device features adjustable output voltage ranging from 1.2V to 15V, making it suitable for diverse power management applications requiring low quiescent current and integrated protection features.

This part carries a Last Time Buy status, indicating discontinued production. Identifying qualified substitute components is essential for design continuity and long-term supply chain planning.

Substiute Parts

TPS71501MDCKREP

Texas InstrumentsIn Stock: 7313TPS71501MDCKREP Datasheet

Current PartRFQ

TPS71501QDCKRQ1

Texas InstrumentsIn Stock: 9222TPS71501QDCKRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS71501MDCKREP is determined by the following critical parameters:

• Identical output configuration (positive adjustable)
• Matching output current rating (50mA)
• Compatible input voltage specification (24V maximum)
• Identical output voltage adjustment range (1.2V to 15V)
• Matching package type (SC-70-5)
• Equivalent control and protection features (Enable, Power Good, Over Temperature, Reverse Polarity)
• Identical quiescent current specification (4.2 µA)
• Matching voltage dropout characteristic (0.23V @ 500mA)

The TPS71501QDCKRQ1 meets all substitution criteria while offering enhanced product status and automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

The TPS71501QDCKRQ1 is the qualified substitute for the TPS71501MDCKREP. Both devices share identical electrical specifications and package configuration, ensuring direct functional compatibility.

Key differentiation factors:

• The TPS71501QDCKRQ1 maintains Active product status, providing long-term availability and supply chain stability compared to the Last Time Buy status of the original part.
• The substitute carries Automotive grade qualification with AEC-Q100 certification, indicating enhanced reliability and process control suitable for demanding applications.
• Operating temperature range differs slightly: the substitute supports -40°C to 125°C versus -55°C to 125°C for the original. Applications requiring operation below -40°C must retain the TPS71501MDCKREP.
• Both devices are ROHS3 compliant and REACH unaffected, meeting regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the TPS71501QDCKRQ1 directly replace the TPS71501MDCKREP in existing designs?

A: Yes, for applications operating within the -40°C to 125°C temperature range. The electrical specifications, output voltage adjustment range, current ratings, and package configuration are identical. Designs requiring operation below -40°C must use the original TPS71501MDCKREP.

Q: What is the significance of the Last Time Buy status on the TPS71501MDCKREP?

A: Last Time Buy indicates the manufacturer has discontinued production. Existing inventory will be depleted, and future availability cannot be guaranteed. The TPS71501QDCKRQ1 is recommended for new designs and long-term production requirements.

Q: Are there packaging differences between these parts?

A: Yes. The TPS71501MDCKREP is supplied in Cut Tape (CT) and Digi-Reel® formats, while the TPS71501QDCKRQ1 is supplied in Tape & Reel (TR) format. Both use the SC-70-5 package type. Verify packaging requirements for your assembly process.

Q: Does the automotive qualification of the TPS71501QDCKRQ1 affect non-automotive applications?

A: No. Automotive qualification indicates enhanced manufacturing process control and reliability testing. The part is suitable for all applications within its electrical specifications, including non-automotive designs.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Output current (50mA), output voltage range (1.2V to 15V), input voltage maximum (24V), voltage dropout (0.23V @ 500mA), quiescent current (4.2 µA), package type (SC-70-5), and control/protection features (Enable, Power Good, Over Temperature, Reverse Polarity) must match exactly for direct substitution.