FPF2006 Equivalent & Substitute Parts

Part Overview

The FPF2006 is a Power Switch/Driver IC manufactured by onsemi, designed as a P-Channel 1:1 high-side switch with 100mA output capability in a 5-TSSOP (SC-70-5) package. This component operates across a 1.8V to 5.5V load voltage range and includes integrated current limiting, over-temperature protection, and UVLO (Under-Voltage Lock-Out) fault protection with status flag capability.

The FPF2006 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this power management topology.

Substiute Parts

FPF2006

onsemiIn Stock: 43339FPF2006 Datasheet

Current PartRFQ

TPS22942DCKR

Texas InstrumentsIn Stock: 3394TPS22942DCKR Datasheet

MFR RecommendedRFQ

TPS22943DCKR

Texas InstrumentsIn Stock: 3894TPS22943DCKR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FPF2006 are identified based on the following critical parameters that determine functional equivalence:

• Output Configuration: High-side P-Channel switch with 1:1 input-to-output ratio
• Package Compatibility: 5-TSSOP (SC-70-5, SOT-353) surface mount package
• Voltage Range: Load voltage operation within or overlapping the 1.8V ~ 5.5V specification
• Output Current Capability: Minimum 100mA for direct substitution; lower current ratings represent functional alternatives for current-limited applications
• Fault Protection: Current limiting, over-temperature protection, and UVLO functionality
• Interface Type: Non-inverting on/off control
• Compliance: ROHS3 compliance and equivalent regulatory status

The TPS22942DCKR (Texas Instruments) qualifies as a manufacturer-recommended substitute, meeting all critical parameters with enhanced specifications. The TPS22943DCKR represents a similar alternative with reduced output current capability (40mA), suitable for applications with lower current requirements.

Parameter Comparison

Engineering Selection Recommendations

TPS22942DCKR is the primary substitute for FPF2006 replacement. This part maintains identical output current specification (100mA), identical package footprint, and equivalent fault protection architecture. The TPS22942DCKR offers improved on-resistance (400mOhm vs. 700mOhm) and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). Active product status ensures long-term availability and supply chain continuity. ROHS3 compliance and MSL-1 rating match the original specification.

TPS22943DCKR serves as an alternative for applications with reduced output current requirements (40mA maximum). This part shares identical package, voltage range, and protection features with the primary substitute. Selection of TPS22943DCKR is appropriate only when circuit design confirms that maximum output current does not exceed 40mA.

Both Texas Instruments substitutes maintain ROHS3 compliance, unlimited moisture sensitivity rating, and equivalent regulatory certifications (REACH Unaffected, EAR99 ECCN classification).

Frequently Asked Questions (FAQ)

Q: Can TPS22942DCKR directly replace FPF2006 without PCB modification?

A: Yes. Both parts use identical 5-TSSOP (SC-70-5, SOT-353) package geometry and pin configuration. No PCB layout changes are required. Electrical performance is compatible across the specified voltage and current operating ranges.

Q: What is the primary difference between TPS22942DCKR and TPS22943DCKR?

A: Maximum output current capability differs: TPS22942DCKR supports 100mA (matching FPF2006), while TPS22943DCKR is rated for 40mA. Both share identical package, voltage range, and protection features. Selection depends on circuit current requirements.

Q: Why does TPS22942DCKR have lower on-resistance than FPF2006?

A: On-resistance (Rds On) is a device-specific characteristic determined by semiconductor process and die design. TPS22942DCKR's 400mOhm specification represents improved performance compared to FPF2006's 700mOhm. This results in lower power dissipation and reduced thermal load in equivalent applications.

Q: Are there temperature range considerations when substituting?

A: FPF2006 operates to 85°C (TA), while both TPS22942DCKR and TPS22943DCKR operate to 125°C (TJ). The extended range of Texas Instruments parts provides additional thermal margin. Applications operating near the upper temperature limit of FPF2006 benefit from this extended specification.

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

A: Yes. Both TPS22942DCKR and TPS22943DCKR include current limiting (fixed), over-temperature protection, and UVLO functionality identical to FPF2006. TPS22942DCKR adds auto-restart capability as an additional feature.

Q: What is the voltage range compatibility?

A: FPF2006 operates at 1.8V ~ 5.5V load voltage. TPS22942DCKR and TPS22943DCKR operate at 1.62V ~ 5.5V. The substitute parts support lower minimum voltage operation, providing broader application compatibility.

Q: Are all three parts ROHS3 compliant?

A: Yes. FPF2006, TPS22942DCKR, and TPS22943DCKR are all ROHS3 compliant with MSL-1 (unlimited) moisture sensitivity rating. Regulatory status is equivalent across all three parts.