TPS76818QPWPREP Equivalent & Substitute Parts

Part Overview

The TPS76818QPWPREP is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1.8V output at 1A current capacity. This Surface Mount device operates across -40°C to 125°C and integrates protection features including over-current, over-temperature, and reverse polarity protection. The part is Active in product status with 826 pieces currently in stock. Substitute parts are identified when design requirements necessitate alternative sourcing, inventory constraints, or specific qualification requirements such as automotive-grade certifications.

Substiute Parts

TPS76818QPWPREP

Texas InstrumentsIn Stock: 867TPS76818QPWPREP Datasheet

Current PartRFQ

TPS76818QPWPRQ1

Texas InstrumentsIn Stock: 3280TPS76818QPWPRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The TPS76818QPWPRQ1 qualifies as a parametric equivalent to the TPS76818QPWPREP based on the following criteria:

Electrical Parameters Match:

• Output voltage: 1.8V fixed
• Output current: 1A
• Input voltage maximum: 10V
• Quiescent current: 125 µA
• PSRR: 60dB (1kHz)
• Control features: Enable, Power Good
• Protection features: Over Current, Over Temperature, Reverse Polarity
• Operating temperature range: -40°C to 125°C

Mechanical Parameters Match:

• Package type: 20-PowerTSSOP (0.173", 4.40mm Width)
• Mounting type: Surface Mount
• Supplier device package: 20-HTSSOP

Compliance Match:

• RoHS3 Compliant
• REACH Unaffected
• ECCN: EAR99
• HTSUS: 8542.39.0001

The TPS76818QPWPRQ1 includes automotive-grade qualification (AEC-Q100) and carries a higher moisture sensitivity level (MSL 3 vs. MSL 2), which represents a difference in handling requirements but does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the TPS76818QPWPREP and TPS76818QPWPRQ1 are Active products from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts depends on application requirements and supply availability:

TPS76818QPWPREP is suitable for standard industrial and commercial applications where automotive qualification is not required.

TPS76818QPWPRQ1 is required for automotive applications requiring AEC-Q100 qualification. This part carries higher inventory availability (3200 pieces versus 826 pieces) and may be preferred for high-volume production scenarios. The increased moisture sensitivity level (MSL 3) requires adherence to stricter handling and storage protocols during manufacturing.

Both parts maintain full RoHS3 compliance and identical electrical performance characteristics, ensuring direct functional interchangeability within their respective application domains.

Frequently Asked Questions (FAQ)

Q: Can TPS76818QPWPRQ1 be used as a direct replacement for TPS76818QPWPREP?

A: Yes, from an electrical and mechanical standpoint. The TPS76818QPWPRQ1 provides identical output voltage, current capacity, control features, and protection mechanisms. However, the automotive-grade qualification of the Q1 variant makes it suitable for applications requiring AEC-Q100 certification. The higher moisture sensitivity level (MSL 3) requires compliance with more stringent handling procedures.

Q: What is the difference in moisture sensitivity between these parts?

A: The TPS76818QPWPREP carries MSL 2 (1 Year floor life), while the TPS76818QPWPRQ1 carries MSL 3 (168 Hours floor life). MSL 3 requires more careful moisture control during storage and handling to prevent solder joint degradation. This does not affect electrical performance but impacts manufacturing process requirements.

Q: Are both parts suitable for -40°C to 125°C operating temperature applications?

A: Yes. Both parts maintain identical operating temperature specifications of -40°C to 125°C, making them suitable for industrial and automotive temperature range applications.

Q: Do these parts have identical package dimensions?

A: Yes. Both parts use the 20-PowerTSSOP package (0.173", 4.40mm Width) with Surface Mount configuration, ensuring identical PCB footprint and assembly compatibility.

Q: Which part should be selected for high-volume production?

A: The TPS76818QPWPRQ1 offers significantly higher inventory availability (3200 pieces versus 826 pieces), making it preferable for high-volume production scenarios where supply chain continuity is critical.