FPF2000 Equivalent & Substitute Parts

Part Overview

The FPF2000 is a Power Switch/Driver IC manufactured by onsemi, designed as a 1:1 P-Channel high-side switch with 50mA output capability in a 5-TSSOP (SC-70-5) package. This component operates across a 1.8V to 5.5V load voltage range and integrates auto restart, status flag, current limiting, over-temperature, and UVLO fault protection features.

The FPF2000 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and legacy system support.

Substiute Parts

FPF2000

onsemiIn Stock: 115414FPF2000 Datasheet

Current PartRFQ

TPS22942DCKR

Texas InstrumentsIn Stock: 3394TPS22942DCKR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FPF2000 is determined by the following critical parameters:

• Switch Configuration: 1:1 P-Channel high-side topology with On/Off interface
• Package Compatibility: 5-TSSOP (SC-70-5, SOT-353) surface mount package
• Voltage Range: Load voltage operation within or overlapping 1.8V ~ 5.5V
• Output Current: Maximum output current must meet or exceed 50mA
• Fault Protection: Current limiting, over-temperature, and UVLO protection required
• Compliance: ROHS3 compliance and MSL 1 rating

The TPS22942DCKR from Texas Instruments satisfies all substitution criteria. It maintains identical switch topology, package form factor, and protection features while providing enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TPS22942DCKR is a direct functional substitute for the FPF2000. Both components share identical package geometry, switch topology, and protection architecture, enabling pin-compatible board-level replacement without layout modification.

The TPS22942DCKR offers enhanced electrical performance: 100mA output current capacity (versus 50mA), 400mOhm on-resistance (versus 700mOhm), and extended operating temperature range to 125°C. These improvements provide design margin for thermal and current-handling requirements.

Both parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring equivalent environmental and regulatory qualification status. The TPS22942DCKR's active product status ensures long-term availability and continued manufacturer support, addressing the obsolescence constraint of the FPF2000.

Frequently Asked Questions (FAQ)

Q: Can the TPS22942DCKR directly replace the FPF2000 without PCB modification?

A: Yes. Both components use identical 5-TSSOP (SC-70-5) package geometry with matching pin assignments. No layout changes are required for board-level substitution.

Q: What are the key electrical differences between these parts?

A: The TPS22942DCKR provides higher output current capacity (100mA versus 50mA) and lower on-resistance (400mOhm versus 700mOhm). Load voltage range extends to 1.62V minimum (versus 1.8V). Operating temperature range extends to 125°C (versus 85°C).

Q: Are there any compliance or certification differences?

A: Both parts maintain ROHS3 compliance and MSL 1 rating. No compliance gaps exist between the two components.

Q: Why is the FPF2000 listed as obsolete?

A: The FPF2000 has been discontinued by onsemi. The TPS22942DCKR from Texas Instruments is the recommended active alternative for new designs and production continuity.

Q: Does the lower on-resistance of the TPS22942DCKR affect circuit operation?

A: Lower on-resistance reduces power dissipation and heat generation under load, improving thermal performance. This is a beneficial characteristic that does not compromise compatibility with existing circuit designs.