FPF2300MX Equivalent & Substitute Parts

Part Overview

The FPF2300MX is a Power Management IC (PMIC) manufactured by onsemi, functioning as a power switch/driver with 1:2 output configuration. This P-Channel device delivers 1.1A maximum output current with integrated fault protection including current limiting, over-temperature protection, reverse current blocking, and UVLO (Under-Voltage Lock-Out). The FPF2300MX carries an Obsolete product status, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

FPF2300MX

onsemiIn Stock: 940FPF2300MX Datasheet

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FPF2303MX

Fairchild SemiconductorIn Stock: 1531FPF2303MX Datasheet

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BD2069FJ-MGE2

Rohm SemiconductorIn Stock: 1258BD2069FJ-MGE2 Datasheet

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TPS2046BD

Texas InstrumentsIn Stock: 2450TPS2046BD Datasheet

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TPS2046BDR

Texas InstrumentsIn Stock: 1969TPS2046BDR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FPF2300MX is determined by the following critical parameters: output type (P-Channel vs. N-Channel), number of outputs (2), input:output ratio (1:2), output configuration (High Side), package compatibility (8-SOIC), and fault protection features (current limiting, over-temperature, reverse current, UVLO).

The substitute parts listed exhibit varying degrees of compatibility:

FPF2303MX (Fairchild Semiconductor): Maintains identical output configuration (P-Channel, 1:2 ratio, High Side), current rating (1.1A), on-resistance (75mOhm), and package (8-SOIC). Load voltage specification differs (6V vs. 1.8V ~ 5.5V). Product status is Active.

BD2069FJ-MGE2 (Rohm Semiconductor): Shares 1:2 ratio, High Side configuration, and 8-SOIC package. Differs in output type (N-Channel vs. P-Channel), current capacity (3A vs. 1.1A), on-resistance (80mOhm vs. 75mOhm), and load voltage range (2.7V ~ 5.5V). Includes automotive qualification (AEC-Q100). Product status is Active.

TPS2046BD and TPS2046BDR (Texas Instruments): Share 8-SOIC package and High Side configuration. Differ in input:output ratio (1:1 vs. 1:2), output type (N-Channel vs. P-Channel), current capacity (250mA vs. 1.1A), on-resistance (70mOhm vs. 75mOhm), and input type (Inverting vs. Non-Inverting). Product status is Active.

Parameter Comparison

Engineering Selection Recommendations

FPF2303MX represents the closest functional equivalent to the FPF2300MX. Both devices maintain P-Channel output type, 1:2 input:output ratio, identical current rating (1.1A), matching on-resistance (75mOhm), and compatible 8-SOIC packaging. The FPF2303MX carries Active product status and ROHS3 compliance, providing long-term availability and regulatory alignment. The load voltage specification difference (6V vs. 1.8V ~ 5.5V) requires circuit-level evaluation for compatibility.

BD2069FJ-MGE2 offers higher current capacity (3A) and automotive-grade qualification (AEC-Q100), suitable for applications requiring enhanced current handling or automotive compliance. The N-Channel output type and higher load voltage floor (2.7V) necessitate circuit redesign compared to the P-Channel FPF2300MX.

TPS2046BD and TPS2046BDR differ fundamentally in input:output ratio (1:1 vs. 1:2) and output current (250mA vs. 1.1A), limiting direct substitution applicability. These devices are suitable only for applications where the 1:1 configuration and reduced current capacity align with design requirements.

Frequently Asked Questions (FAQ)

Q: Can FPF2303MX directly replace FPF2300MX in existing designs?

A: FPF2303MX maintains identical output type (P-Channel), ratio (1:2), current rating (1.1A), on-resistance (75mOhm), and 8-SOIC package. The load voltage specification differs (6V vs. 1.8V ~ 5.5V). Direct substitution is feasible if the application load voltage does not exceed 6V and circuit topology remains unchanged.

Q: What are the key differences between P-Channel (FPF2300MX, FPF2303MX) and N-Channel (BD2069FJ-MGE2, TPS2046BD, TPS2046BDR) devices?

A: P-Channel and N-Channel devices require different gate drive circuits and control logic. P-Channel switches control high-side loads with ground-referenced control signals. N-Channel switches require floating gate drive or alternative topologies. Substitution between channel types requires circuit redesign.

Q: Why do TPS2046BD and TPS2046BDR show 1:1 ratio instead of 1:2?

A: The input:output ratio defines the number of independent switch outputs controlled by a single input. TPS2046 devices provide 1:1 configuration (one input controls one output), whereas FPF2300MX provides 1:2 configuration (one input controls two outputs). This architectural difference limits direct substitution.

Q: Are all substitute parts available in the same 8-SOIC package?

A: All listed substitute parts utilize 8-SOIC (0.154", 3.90mm Width) packaging, ensuring PCB footprint compatibility. Pinout verification against device datasheets is required before implementation.

Q: What compliance certifications apply to substitute parts?

A: FPF2303MX, BD2069FJ-MGE2, TPS2046BD, and TPS2046BDR all carry ROHS3 compliance. BD2069FJ-MGE2 includes automotive-grade qualification (AEC-Q100). All parts maintain REACH Unaffected status and EAR99 ECCN classification.