FPF2005 Equivalent & Substitute Parts

Part Overview

The FPF2005 is a power management integrated circuit (PMIC) manufactured by onsemi, functioning as a general-purpose power switch with P-channel output configuration. This component operates as a 1:1 high-side load switch rated for 100mA maximum output current, designed for load voltage ranges of 1.8V to 5.5V. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

FPF2005

onsemiIn Stock: 58143FPF2005 Datasheet

Current PartRFQ

FPF2004

Fairchild SemiconductorIn Stock: 1334FPF2004 Datasheet

Parametric EquivalentRFQ

TPS22942DCKR

Texas InstrumentsIn Stock: 3394TPS22942DCKR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FPF2005 is determined by strict parametric matching across the following criteria:

Critical Matching Parameters:

• Output configuration: High side, P-channel, 1:1 ratio
• Maximum output current: 100mA
• Load voltage range: 1.8V to 5.5V minimum
• Package type: SC-70-5 (5-TSSOP, SOT-353)
• Interface type: On/Off, non-inverting input
• Fault protection: Current limiting (fixed), over-temperature, UVLO

Substitute Classification:

Parametric Equivalent (FPF2004): Meets all critical parameters identically. Manufactured by Fairchild Semiconductor under the IntelliMAX™ series. Maintains identical electrical specifications including 700mOhm typical Rds On and 100mA output current rating. Active product status ensures continued availability.

Similar Substitute (TPS22942DCKR): Meets core functional requirements with minor parameter variations. Manufactured by Texas Instruments. Maintains 100mA output current and SC-70-5 package compatibility. Notable differences include lower typical Rds On (400mOhm versus 700mOhm), extended load voltage floor (1.62V versus 1.8V), and extended operating temperature range (-40°C to 125°C junction temperature versus -40°C to 85°C ambient). Status flag feature is not present in this alternative.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): FPF2004 is the primary substitute for FPF2005. This part maintains identical electrical specifications and package configuration, ensuring drop-in compatibility without circuit redesign. Active product status guarantees supply chain availability. Both components share the IntelliMAX™ series designation and identical fault protection architecture.

For Enhanced Performance Applications: TPS22942DCKR serves as a functional alternative when improved thermal performance or extended operating temperature range is beneficial. The 400mOhm typical Rds On provides lower power dissipation compared to the 700mOhm specification of the original part. Extended load voltage floor (1.62V) accommodates lower supply voltage applications. ROHS3 compliance status supports environmental regulatory requirements. Note that status flag functionality is not available in this alternative.

Compliance Considerations: All three components carry EAR99 export classification and identical HTSUS coding (8542.39.0001). TPS22942DCKR explicitly declares ROHS3 compliance, supporting applications with environmental certification requirements.

Frequently Asked Questions (FAQ)

Q: Can FPF2004 be used as a direct replacement for FPF2005?

A: Yes. FPF2004 meets all parametric requirements for direct substitution. Identical output current rating (100mA), load voltage range (1.8V to 5.5V), typical Rds On (700mOhm), package type (SC-70-5), and fault protection features ensure functional equivalence without circuit modification.

Q: What are the key differences between FPF2004 and TPS22942DCKR?

A: Both maintain 100mA output current and SC-70-5 packaging. TPS22942DCKR offers lower Rds On (400mOhm versus 700mOhm), extended load voltage floor (1.62V versus 1.8V), and higher operating temperature range (-40°C to 125°C junction versus -40°C to 85°C ambient). FPF2004 retains the status flag feature present in the original FPF2005, which TPS22942DCKR does not include.

Q: Are all substitute parts available in the same package?

A: Yes. FPF2005, FPF2004, and TPS22942DCKR all use the 5-TSSOP SC-70-5 SOT-353 package, enabling PCB-level compatibility without layout modifications.

Q: Which substitute should be selected for new designs?

A: Selection depends on application requirements. For designs requiring status flag monitoring, FPF2004 is appropriate. For applications benefiting from lower on-resistance and extended temperature range, TPS22942DCKR is suitable. Both are active products with established supply availability.

Q: Do all parts meet the same fault protection requirements?

A: Yes. All three components include current limiting (fixed), over-temperature protection, and UVLO (under-voltage lockout) fault protection mechanisms.