TPS77618PWPRG4 Equivalent & Substitute Parts

Part Overview

The TPS77618PWPRG4 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1.8V output at 500mA in a 20-HTSSOP surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement. The device provides integrated protection features including over-current, over-temperature, and reverse polarity protection, with enable and power good control functions suitable for power management applications requiring stable 1.8V regulation.

Substiute Parts

TPS77618PWPRG4

Texas InstrumentsIn Stock: 1101TPS77618PWPRG4 Datasheet

Current PartRFQ

TPS77618QPWPREP

Texas InstrumentsIn Stock: 6067TPS77618QPWPREP Datasheet

Parametric EquivalentRFQ

TPS77618QPWPRQ1

Texas InstrumentsIn Stock: 748TPS77618QPWPRQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS77618PWPRG4 are determined by strict equivalence across the following critical parameters:

• Output voltage specification (1.8V fixed)
• Maximum output current (500mA)
• Input voltage rating (10V maximum)
• Package type (20-PowerTSSOP)
• Control features (Enable, Power Good)
• Protection features (Over Current, Over Temperature, Reverse Polarity)
• Quiescent current (125 µA)
• PSRR performance (60dB at 100Hz)
• Operating temperature range (-40°C ~ 125°C)
• RoHS3 compliance

The identified substitutes maintain identical electrical specifications and mechanical compatibility, differing only in product status, packaging format, and qualification grades.

Parameter Comparison

Engineering Selection Recommendations

Both TPS77618QPWPREP and TPS77618QPWPRQ1 are direct electrical and mechanical equivalents to the discontinued TPS77618PWPRG4, with selection based on application requirements and compliance needs.

TPS77618QPWPREP is recommended for standard industrial and consumer applications requiring active product status and standard-grade components. This part maintains identical electrical specifications and MSL rating of 2 (1 Year), providing equivalent reliability for general power management applications.

TPS77618QPWPRQ1 is specified for automotive applications requiring AEC-Q100 qualification. This variant includes automotive-grade qualification and is supplied in Tape & Reel packaging format. The MSL rating of 3 (168 Hours) reflects automotive handling requirements. Selection of this part is mandatory for designs requiring automotive compliance certification.

Both substitutes are ROHS3 compliant and maintain identical control and protection feature sets, ensuring direct functional compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can TPS77618QPWPREP directly replace TPS77618PWPRG4 in existing designs?

A: Yes. TPS77618QPWPREP is a direct parametric equivalent with identical electrical specifications, output voltage (1.8V), output current (500mA), control features, protection features, and 20-PowerTSSOP package. The primary difference is active product status versus discontinued status. No circuit modifications are required.

Q: What is the difference between TPS77618QPWPREP and TPS77618QPWPRQ1?

A: Both parts are electrically identical with matching voltage, current, and control specifications. TPS77618QPWPRQ1 includes AEC-Q100 automotive qualification and is supplied in Tape & Reel packaging, while TPS77618QPWPREP is standard-grade supplied in bulk packaging. MSL ratings differ: TPS77618QPWPREP is MSL 2 (1 Year), and TPS77618QPWPRQ1 is MSL 3 (168 Hours).

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the identical 20-PowerTSSOP package with 0.173" width and 4.40mm dimensions, ensuring direct PCB footprint compatibility without layout modifications.

Q: Which substitute should be selected for automotive applications?

A: TPS77618QPWPRQ1 must be selected for automotive applications due to AEC-Q100 qualification. This part meets automotive industry standards and compliance requirements.

Q: Do the substitute parts maintain the same protection features?

A: Yes. Both TPS77618QPWPREP and TPS77618QPWPRQ1 include identical protection features: over-current, over-temperature, and reverse-polarity protection, matching the original TPS77618PWPRG4 specification.

Q: What is the significance of MSL rating differences?

A: MSL (Moisture Sensitivity Level) indicates moisture handling requirements during storage and assembly. TPS77618QPWPREP (MSL 2, 1 Year) allows longer shelf life before reflow soldering. TPS77618QPWPRQ1 (MSL 3, 168 Hours) requires baking before assembly due to automotive-grade specifications and should be used within 168 hours of package opening.