FPF1007 Equivalent & Substitute Parts

Part Overview

The FPF1007 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 a maximum output current of 1.5A and an on-resistance of 30mOhm typical. The device is housed in a 6-MicroFET (2x2) package and is classified as obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity.

Substiute Parts

FPF1007

onsemiIn Stock: 8734FPF1007 Datasheet

Current PartRFQ

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

Substitution eligibility for the FPF1007 is determined by the following critical parameters:

• Output Type: P-Channel high-side switch
• Ratio - Input:Output: 1:1 configuration
• Maximum Output Current: 1.5A or greater
• On-Resistance: 30mOhm or lower
• Load Voltage Range: 1.2V ~ 5.5V or compatible range
• Interface: On/Off control
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package compatibility: 6-pin MicroFET or equivalent footprint

The substitute parts listed below meet these core electrical and mechanical requirements, enabling direct or near-direct replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

FPF1008 (Parametric Equivalent): This part is the primary substitute for the FPF1007. It maintains identical electrical specifications including 1.5A maximum output current and 30mOhm on-resistance. The FPF1008 is currently in active production status, ensuring long-term availability. Both parts operate within the same load voltage range (1.2V ~ 5.5V) and temperature range (-40°C ~ 85°C). Package variants differ slightly (6-VDFN versus 6-WDFN), but both are 6-pin MicroFET configurations with exposed pads. The FPF1008 is the recommended first choice for direct replacement.

AP2281-3FMG-7 (Similar Alternative): This part from Diodes Incorporated provides an alternative when FPF1008 availability is constrained. It shares the same P-channel high-side topology, non-inverting input, and feature set. The AP2281-3FMG-7 offers higher maximum output current (2A versus 1.5A) and an extended load voltage range (1.5V ~ 6V), providing additional design margin. However, the on-resistance is higher at 80mOhm typical compared to 30mOhm, which may impact thermal performance in current-limited applications. This part is actively produced and carries ROHS3 compliance certification. Selection of this alternative requires verification that the higher on-resistance does not exceed thermal or power dissipation constraints in the target application.

Frequently Asked Questions (FAQ)

Q: Can FPF1008 be used as a direct replacement for FPF1007?

A: Yes. The FPF1008 is a parametric equivalent with identical electrical specifications: 1.5A maximum output current, 30mOhm on-resistance, 1:1 P-channel high-side configuration, and identical operating temperature range. Package footprints are both 6-pin MicroFET variants with exposed pads. Verification of PCB layout compatibility with the specific package variant (6-VDFN versus 6-WDFN) is recommended.

Q: What are the key differences between FPF1008 and AP2281-3FMG-7?

A: Both parts function as P-channel high-side switches with identical control interfaces and feature sets. The primary differences are: FPF1008 matches the FPF1007 exactly at 1.5A and 30mOhm, while AP2281-3FMG-7 provides 2A capability but with 80mOhm on-resistance. Load voltage ranges differ slightly (1.2V~5.5V versus 1.5V~6V). The higher on-resistance of the AP2281-3FMG-7 results in greater power dissipation at equivalent current levels.

Q: Is package compatibility a concern when substituting these parts?

A: All three parts use 6-pin MicroFET surface-mount packages with exposed pads. However, specific package variants differ: FPF1007 uses 6-WDFN, FPF1008 uses 6-VDFN, and AP2281-3FMG-7 uses 6-UFDFN. While pin counts and general footprints are similar, PCB layout verification is necessary to confirm pad dimensions and spacing compatibility with existing designs.

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

A: FPF1007 and AP2281-3FMG-7 both carry ROHS3 compliance certification and MSL Level 1 (Unlimited) moisture sensitivity ratings. FPF1008 compliance details are not specified in available documentation. All three parts carry EAR99 export classification and are REACH Unaffected.

Q: Which substitute should be selected for new designs?

A: For new designs, FPF1008 is preferred due to its active production status and exact electrical equivalence to the FPF1007. AP2281-3FMG-7 is suitable when higher current capability (2A) is beneficial or when FPF1008 availability is limited, provided that the higher on-resistance does not create thermal or power dissipation issues.