FPF2194 Equivalent & Substitute Parts

Part Overview

The FPF2194 is a Power Management Integrated Circuit (PMIC) classified as a power switch/driver manufactured by onsemi. This component functions as a high-side P-channel load switch with integrated current limiting and fault protection capabilities. The FPF2194 is designated as obsolete, making identification of equivalent substitute parts essential for ongoing design support, production continuity, and component sourcing in applications requiring this specific functionality.

Substiute Parts

FPF2194

onsemiIn Stock: 44575FPF2194 Datasheet

Current PartRFQ

FPF2195

Fairchild SemiconductorIn Stock: 26233FPF2195 Datasheet

Parametric EquivalentRFQ

FPF2195BUCX

Fairchild SemiconductorIn Stock: 50329FPF2195BUCX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FPF2194 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must match identically:

• Output Configuration: High Side
• Output Type: P-Channel
• Number of Outputs: 1
• Ratio - Input:Output: 1:1
• Current - Output (Max): 1.5A
• Voltage - Load: 1.8V ~ 5.5V
• Rds On (Typ): 55mOhm
• Interface: On/Off
• Input Type: Non-Inverting
• Features: Status Flag
• Fault Protection: Current Limiting (Adjustable), Over Temperature, Reverse Current, UVLO
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 6-UFBGA, WLCSP (0.96x1.66mm)

The identified substitute parts (FPF2195 and FPF2195BUCX) meet all these criteria and are manufactured by Fairchild Semiconductor with active product status, providing viable alternatives for the obsolete FPF2194.

Parameter Comparison

Engineering Selection Recommendations

Both FPF2195 and FPF2195BUCX are suitable substitutes for the obsolete FPF2194 based on complete parametric equivalence. The primary distinction between the two Fairchild alternatives is inventory availability and packaging designation.

FPF2195 is the base part number with active product status and ROHS3 compliance certification. FPF2195BUCX carries the same electrical specifications and active status, with higher inventory levels (50,300 pcs vs. 26,205 pcs for FPF2195), making it the preferred selection for high-volume production requirements or long-term supply chain stability.

Both substitute parts maintain compliance with ROHS3 and REACH standards, ensuring regulatory alignment with the original FPF2194 specification. The active product status of both Fairchild alternatives provides assurance of continued availability and technical support compared to the obsolete onsemi original.

Frequently Asked Questions (FAQ)

Q: Can FPF2195 or FPF2195BUCX be used as direct replacements for FPF2194 in existing designs?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications, including output configuration, current rating, voltage range, on-resistance, fault protection features, operating temperature range, and package dimensions. Direct substitution is supported without circuit modification.

Q: What is the difference between FPF2195 and FPF2195BUCX?

A: Both parts share identical electrical specifications and active product status. The primary difference is the packaging designation suffix (BUCX) and inventory availability. FPF2195BUCX has higher stock levels, making it suitable for applications requiring larger quantities or extended supply assurance.

Q: Are there any compliance or certification differences between the substitute parts and the original FPF2194?

A: FPF2195 carries explicit ROHS3 and REACH compliance certifications matching the original FPF2194. FPF2195BUCX maintains the same electrical specifications and active status; however, specific compliance documentation should be confirmed with the supplier for this variant.

Q: Does the 6-WLCSP package dimension (0.96x1.66mm) remain identical across all three parts?

A: Yes. The package dimensions and footprint are identical for FPF2194, FPF2195, and FPF2195BUCX, ensuring PCB layout compatibility without redesign.

Q: Why is the FPF2194 listed as obsolete if equivalent parts are available?

A: The FPF2194 has been discontinued by onsemi. The availability of parametrically equivalent active alternatives from Fairchild Semiconductor (FPF2195 and FPF2195BUCX) provides continuity for applications requiring this power switch functionality, eliminating the need for circuit redesign.