FPF1009R Equivalent & Substitute Parts

Part Overview

The FPF1009R is a Power Switch/Driver IC manufactured by onsemi, designed for high-side P-channel switching applications. This component operates as a 1:1 power switch with 1.5A output capability in a compact 6-MicroFET (2x2) package. The FPF1009R is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging variations.

Substiute Parts

FPF1009R

onsemiIn Stock: 2069FPF1009R Datasheet

Current PartRFQ

FPF1007

onsemiIn Stock: 8734FPF1007 Datasheet

Parametric EquivalentRFQ

FPF1008

Fairchild SemiconductorIn Stock: 1861FPF1008 Datasheet

Parametric EquivalentRFQ

AP2281-3FMG-7

Diodes IncorporatedIn Stock: 5127AP2281-3FMG-7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FPF1009R are classified into two categories based on parametric alignment:

Parametric Equivalents (FPF1007, FPF1008): These parts maintain identical electrical specifications across all critical parameters: 1.5A maximum output current, 30mOhm typical on-resistance, 1.2V–5.5V load voltage range, -40°C to 85°C operating temperature, and 1:1 input-output ratio with P-channel high-side output configuration. Both are surface-mount components in 6-MicroFET packages with load discharge and slew rate control features. FPF1007 remains obsolete but shares the exact same electrical profile. FPF1008 is active and available, making it the preferred parametric equivalent.

Similar Part (AP2281-3FMG-7): This Diodes Incorporated component provides functional equivalence with notable parameter variations. While maintaining the same switching topology (1:1 P-channel high-side), it delivers 2A maximum output current and features 80mOhm typical on-resistance. The load voltage range expands to 1.5V–6V. The package differs (6-UFDFN vs. 6-WDFN), requiring PCB layout verification. AP2281-3FMG-7 is active and suitable for applications where the higher current rating and expanded voltage range provide design margin.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): FPF1008 is the recommended substitute. It maintains all electrical parameters of the FPF1009R (1.5A, 30mOhm, 1.2V–5.5V) and is currently active in production. The package variant (6-VDFN vs. 6-WDFN) requires PCB footprint verification but does not affect electrical performance. FPF1008 carries ROHS3 compliance status consistent with the original part.

For Designs Requiring Higher Current Margin: AP2281-3FMG-7 provides 2A output capability and extended voltage range (1.5V–6V), suitable for applications where load current may approach the 1.5A limit or where supply voltage extends beyond 5.5V. The 80mOhm on-resistance increases power dissipation compared to the 30mOhm original specification; thermal analysis is required. Package footprint (6-UFDFN) differs from the original and requires PCB layout modification.

Obsolete Part Consideration: FPF1007 shares identical electrical specifications with FPF1009R but is also obsolete. It should not be selected for new designs or production continuity planning.

Frequently Asked Questions (FAQ)

Q: Can FPF1008 be used as a direct drop-in replacement for FPF1009R?

A: FPF1008 is electrically equivalent across all critical parameters. However, the package variant (6-VDFN vs. 6-WDFN) requires PCB footprint verification. Consult the respective datasheets for pin-to-pin compatibility and land pattern dimensions before PCB layout finalization.

Q: What is the difference between FPF1007 and FPF1009R?

A: FPF1007 and FPF1009R are parametric equivalents with identical electrical specifications. Both are obsolete. FPF1007 is listed as a substitute option but should not be selected for production due to its obsolete status.

Q: When should AP2281-3FMG-7 be selected over FPF1008?

A: AP2281-3FMG-7 is suitable when the application requires higher output current (2A vs. 1.5A) or extended load voltage range (1.5V–6V vs. 1.2V–5.5V). The higher on-resistance (80mOhm vs. 30mOhm) increases power dissipation and must be evaluated in thermal analysis. Package footprint differences require PCB redesign.

Q: Are all substitute parts RoHS3 compliant?

A: FPF1009R, FPF1007, and AP2281-3FMG-7 are confirmed ROHS3 compliant. FPF1008 RoHS status is not specified in the provided data; verification with the manufacturer is recommended before final selection.

Q: What packaging formats are available for these parts?

A: FPF1009R is supplied in standard packaging. FPF1007 is available in Cut Tape (CT) and Digi-Reel formats. FPF1008 is supplied in Bulk. AP2281-3FMG-7 is available in Tape & Reel (TR) format. Packaging selection depends on production volume and assembly requirements.

Q: Do these parts require different PCB layouts?

A: Yes. While FPF1008 uses a similar 6-MicroFET package family, the specific variant (6-VDFN) may have different land pattern dimensions than the original 6-WDFN. AP2281-3FMG-7 uses a distinctly different package (6-UFDFN) and requires complete PCB footprint redesign. Consult datasheets for precise dimensions and pin assignments.