FPF2701MX Equivalent & Substitute Parts

Part Overview

The FPF2701MX is a Power Switch/Driver IC manufactured by onsemi, classified as a Power Management (PMIC) component. This N-Channel high-side switch operates with a 1:1 input-to-output ratio and delivers up to 2A output current across a load voltage range of 2.8V to 36V. The device features integrated power good indication, slew rate control, and comprehensive fault protection including current limiting, over-temperature, and under-voltage lockout (UVLO).

The FPF2701MX is designated as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support legacy system maintenance and production requirements.

Substiute Parts

FPF2701MX

onsemiIn Stock: 155411FPF2701MX Datasheet

Current PartRFQ

FPF2702MX

onsemiIn Stock: 5184FPF2702MX Datasheet

Parametric EquivalentRFQ

DBL105G

Taiwan Semiconductor CorporationIn Stock: 2013DBL105G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FPF2701MX are identified based on strict parametric equivalence within the Power Management (PMIC) category. The primary substitution criterion is functional compatibility, determined by matching the following key parameters:

• Output Type: N-Channel high-side switch configuration
• Voltage - Load: 2.8V ~ 36V operating range
• Current - Output (Max): 2A rated output current
• Rds On (Typ): 88mOhm on-resistance
• Package / Case: 8-SOIC surface mount form factor
• Interface: On/Off control with integrated status and protection features

The FPF2702MX qualifies as a parametric equivalent substitute, meeting all electrical and mechanical specifications. The DBL105G is listed as a similar part but operates in a different functional category (Diodes - Bridge Rectifier) and does not meet the substitution criteria for direct replacement in power switch applications.

Parameter Comparison

Engineering Selection Recommendations

The FPF2702MX is the direct parametric equivalent for FPF2701MX replacement. Both devices are manufactured by onsemi, share identical electrical specifications (2A output current, 88mOhm Rds On, 2.8V–36V load voltage range), and are packaged in the same 8-SOIC surface mount form factor. Both parts carry Obsolete product status and ROHS3 compliance certification, making them functionally interchangeable in legacy system maintenance and production scenarios.

The DBL105G does not qualify as a substitute for the FPF2701MX. This component is a bridge rectifier diode in the Diodes category, with fundamentally different electrical characteristics (600V peak reverse voltage, 1A average rectified current) and a different package type (4-DIP through-hole). Its functional purpose and electrical parameters are incompatible with power switch applications requiring the FPF2701MX specifications.

Frequently Asked Questions (FAQ)

Q: Can the FPF2702MX directly replace the FPF2701MX in existing designs?

A: Yes. The FPF2702MX meets all parametric requirements for direct substitution. Both devices deliver 2A output current, operate across 2.8V–36V load voltage, feature 88mOhm on-resistance, and are packaged in 8-SOIC surface mount form factor. No circuit modifications are required.

Q: Why is the DBL105G listed as a similar part if it cannot substitute the FPF2701MX?

A: The DBL105G is categorized as a similar part based on general component availability and supplier inventory records, but it operates in a different functional category (bridge rectifier diode) with incompatible electrical specifications. It is not suitable for power switch applications.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching: output type (N-Channel high-side switch), load voltage range (2.8V–36V), maximum output current (2A), on-resistance (88mOhm), and package form factor (8-SOIC surface mount). Deviations in any of these parameters indicate incompatibility.

Q: Are there any compliance or certification differences between the FPF2701MX and FPF2702MX?

A: No. Both parts carry identical ROHS3 compliance and REACH Unaffected status. Both are classified as Obsolete products. Compliance and certification profiles are equivalent.

Q: What mounting considerations apply when substituting these parts?

A: Both the FPF2701MX and FPF2702MX use surface mount technology in 8-SOIC packaging (0.154" width, 3.90mm). PCB footprints and reflow soldering processes are identical. No layout or assembly modifications are necessary.