TPS77818PWPR Equivalent & Substitute Parts

Part Overview

The TPS77818PWPR is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1.8V output applications. This device delivers 750mA output current in a 20-HTSSOP surface mount package and is classified as Active product status. The regulator integrates enable, power good, and reset control features alongside over-current, over-temperature, and reverse polarity protection. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, manage inventory optimization, and maintain design continuity when the primary part becomes unavailable or when alternative sourcing is required for cost or logistics considerations.

Substiute Parts

TPS77818PWPR

Texas InstrumentsIn Stock: 2659TPS77818PWPR Datasheet

Current PartRFQ

TPS77718PWPR

Texas InstrumentsIn Stock: 3445TPS77718PWPR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS77818PWPR is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 1.8V fixed output
• Output current capability: 750mA minimum
• Input voltage tolerance: 10V maximum rating
• Quiescent current: 125 µA
• PSRR performance: 60dB at 1kHz
• Control feature set: Enable, Power Good, and Reset functions
• Protection mechanisms: Over-current, over-temperature, and reverse polarity protection
• Package form factor: 20-PowerTSSOP with 0.173" (4.40mm) width
• Surface mount compatibility
• Operating temperature range: -40°C to 125°C
• Regulatory compliance: ROHS3 and REACH Unaffected status

The TPS77718PWPR meets all these criteria and is classified as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the TPS77818PWPR and TPS77718PWPR are Active status products from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability and supply chain considerations. The TPS77718PWPR currently maintains higher inventory levels at 3400 pieces compared to 2630 pieces for the TPS77818PWPR. Both devices carry ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications. The identical package footprint, thermal characteristics, and functional feature set ensure direct substitution without circuit redesign or PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can the TPS77718PWPR be used as a direct replacement for the TPS77818PWPR?

A: Yes. The TPS77718PWPR is a parametric equivalent with identical output voltage, current rating, control features, protection mechanisms, package form factor, and operating specifications. No circuit modifications are required.

Q: Are there any differences in the 20-PowerTSSOP package between these parts?

A: No. Both devices use the identical 20-PowerTSSOP package with 0.173" (4.40mm) width, ensuring compatible PCB footprints and assembly processes.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the TPS77818PWPR and TPS77718PWPR are ROHS3 compliant and REACH Unaffected, with identical MSL ratings of 2 (1 Year).

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution is determined by matching output voltage (1.8V), output current (750mA), input voltage rating (10V maximum), quiescent current (125 µA), PSRR (60dB at 1kHz), control features (Enable, Power Good, Reset), protection features (Over-current, Over-temperature, Reverse Polarity), package type (20-PowerTSSOP), and operating temperature range (-40°C to 125°C).

Q: Can these parts be used in applications requiring the full -40°C to 125°C operating range?

A: Yes. Both devices are rated for the complete -40°C to 125°C operating temperature range with integrated over-temperature protection.