TPS2221PWPR Equivalent & Substitute Parts

Part Overview

The TPS2221PWPR is a Power Switch/Driver IC designed for PCMCIA switch applications, delivering 1A output current across a 3:2 input-to-output ratio configuration. This component features high-side output switching with integrated status flag and fault protection capabilities including current limiting and over-temperature monitoring.

The TPS2221PWPR is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity and ensure availability for new production runs or system updates.

Substiute Parts

TPS2221PWPR

Texas InstrumentsIn Stock: 2230TPS2221PWPR Datasheet

Current PartRFQ

TPS2211APWPR

Texas InstrumentsIn Stock: 3316TPS2211APWPR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS2221PWPR is determined by the following critical parameters:

• Switch Type: PCMCIA Switch
• Number of Outputs: 2
• Ratio - Input:Output: 3:2
• Output Configuration: High Side
• Current - Output (Max): 1A
• Fault Protection: Current Limiting (Fixed), Over Temperature
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant

The TPS2211APWPR qualifies as a substitute based on matching all critical functional and electrical parameters. Differences in package type (20-HTSSOP vs. 14-HTSSOP), load voltage range expansion (addition of 12V support), and improved Rds On specification (70mOhm vs. 97mOhm) represent enhancements that maintain backward compatibility while offering superior performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TPS2211APWPR is the manufacturer-recommended substitute for the obsolete TPS2221PWPR. Both components maintain identical functional specifications for PCMCIA switch applications with 3:2 ratio configuration and 1A output capability.

The TPS2211APWPR offers the advantage of active product status, ensuring continued availability and manufacturing support. The component maintains full RoHS3 compliance and identical moisture sensitivity classification. The improved Rds On specification (70mOhm vs. 97mOhm) provides reduced power dissipation, benefiting thermal performance in the application.

Package transition from 14-HTSSOP to 20-HTSSOP requires PCB layout modification. Load voltage range expansion to include 12V support provides additional design flexibility without compromising existing 1.8V, 3.3V, and 5V applications.

Frequently Asked Questions (FAQ)

Q: Can the TPS2211APWPR directly replace the TPS2221PWPR without circuit modifications?

A: Functional substitution is valid based on matching switch type, output configuration, current rating, and fault protection features. PCB layout modification is required due to package change from 14-HTSSOP to 20-HTSSOP. Pin-to-pin compatibility must be verified against specific application schematics.

Q: What is the significance of the load voltage range difference?

A: The TPS2221PWPR supports 1.8V, 3.3V, and 5V load voltages. The TPS2211APWPR extends this range to include 12V. For applications operating within the original 1.8V to 5V range, both components are functionally equivalent. Applications requiring 12V operation benefit from the expanded capability of the substitute.

Q: How does the improved Rds On specification affect system performance?

A: The TPS2211APWPR Rds On of 70mOhm compared to the TPS2221PWPR 97mOhm represents approximately 28% reduction in on-state resistance. This results in lower power dissipation and reduced thermal load, improving overall system efficiency and reliability.

Q: Are there compliance or certification differences between these components?

A: Both components maintain identical RoHS3 compliance, REACH unaffected status, and MSL 2 (1 Year) moisture sensitivity classification. Regulatory and environmental compliance requirements are equivalent.

Q: What is the impact of the package change on design implementation?

A: The transition from 14-HTSSOP to 20-HTSSOP requires PCB footprint redesign and layout recalculation. The 20-HTSSOP package maintains the same 0.173" width and 4.40mm width specification as the original, but pin count and spacing differ. Design validation and testing are necessary before production implementation.