FPF1013 Equivalent & Substitute Parts

Part Overview

The FPF1013 is an N-Channel power switch/driver manufactured by onsemi, designed for high-side switching applications with a 1:1 input-to-output ratio. This component operates at 1.5A maximum output current with a typical on-resistance of 17mOhm and supports load voltages from 0.8V to 1.8V. The device is packaged in a 6-WLCSP (0.96x1.66mm) form factor and features load discharge and slew rate control capabilities.

The FPF1013 is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute components must maintain functional compatibility while meeting the electrical and mechanical constraints of the application.

Key Parameters

Parameter	FPF1013 Specification
Manufacturer	onsemi
Switch Type	General Purpose
Output Type	N-Channel
Output Configuration	High Side
Number of Outputs	1
Ratio - Input:Output	1:1
Current - Output (Max)	1.5A
Rds On (Typ)	17mOhm
Voltage - Load	0.8V ~ 1.8V
Operating Temperature	-40°C ~ 85°C (TA)
Interface	On/Off
Input Type	Non-Inverting
Features	Load Discharge, Slew Rate Controlled
Mounting Type	Surface Mount
Package / Case	6-UFBGA, WLCSP
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the FPF1013 is determined by the following critical parameters:

Switch Channel Type: N-Channel operation for high-side switching
Output Current Rating: Minimum 1.5A to meet or exceed the original specification
Load Voltage Range: Compatibility with 0.8V to 1.8V operating window
On-Resistance (Rds On): Electrical efficiency consideration; lower values preferred
Package Type: Surface mount WLCSP or equivalent ball grid array packages
Operating Temperature Range: -40°C to 85°C minimum
Interface Type: On/Off control with non-inverting input
Features: Load discharge and slew rate control capability

Substitute parts are grouped into two categories based on channel type compatibility:

N-Channel Substitutes (Direct functional equivalents): TCK112G,LF, TPS22924BYZR, TPS22924BYZT

P-Channel Substitutes (Functional alternatives with channel inversion): FPF1504UCX, TPS22921YZPR, TPS22922BYZPR, TPS22922YZPR

Parameter Comparison

Part Number	Manufacturer	Output Type	Current (Max)	Rds On (Typ)	Voltage - Load	Package	Product Status
FPF1013	onsemi	N-Channel	1.5A	17mOhm	0.8V ~ 1.8V	6-WLCSP (0.96x1.66)	Obsolete
TCK112G,LF	Toshiba Semiconductor and Storage	N-Channel	3A	8.3mOhm	1.1V ~ 5.5V	6-WCSPC (1.5x1.0)	Active
TPS22924BYZR	Texas Instruments	N-Channel	2A	18.3mOhm	0.75V ~ 3.6V	6-DSBGA	Active
TPS22924BYZT	Texas Instruments	N-Channel	2A	18.3mOhm	0.75V ~ 3.6V	6-DSBGA	Active
FPF1504UCX	Fairchild Semiconductor	P-Channel	1.5A	15mOhm	1V ~ 3.6V	4-WLCSP (0.96x0.96)	Active
TPS22921YZPR	Texas Instruments	P-Channel	2A	14mOhm	0.9V ~ 3.6V	6-DSBGA	Active
TPS22922BYZPR	Texas Instruments	P-Channel	2A	14mOhm	0.9V ~ 3.6V	6-DSBGA	Active
TPS22922YZPR	Texas Instruments	P-Channel	2A	14mOhm	0.9V ~ 3.6V	6-DSBGA	Active

Engineering Selection Recommendations

N-Channel Direct Substitutes

TCK112G,LF from Toshiba provides the closest functional match with active product status. It exceeds the FPF1013 current rating (3A vs 1.5A) and offers superior on-resistance (8.3mOhm vs 17mOhm). The load voltage range extends to 5.5V, providing broader application compatibility. This part includes over-temperature and reverse current fault protection. Package dimensions (1.5x1.0mm) are larger than the original, requiring PCB layout verification.

TPS22924BYZR and TPS22924BYZT from Texas Instruments maintain N-Channel operation with 2A current capability and comparable on-resistance (18.3mOhm). Both parts are active and RoHS3 compliant. The load voltage range (0.75V ~ 3.6V) covers the original specification with extended lower voltage support. These parts are available in both cut tape and tape & reel packaging options.

P-Channel Functional Alternatives

P-Channel substitutes require circuit design modification to invert the control logic. FPF1504UCX from Fairchild Semiconductor matches the 1.5A current rating with superior on-resistance (15mOhm). The smaller 4-WLCSP package (0.96x0.96mm) offers space advantages. Load voltage range (1V ~ 3.6V) covers the original specification window.

TPS22921YZPR, TPS22922BYZPR, and TPS22922YZPR from Texas Instruments provide 2A current capability with 14mOhm on-resistance. All three are active, RoHS3 compliant, and available with unlimited moisture sensitivity. TPS22922 variants offer higher inventory availability (54,073 and 6,069 units respectively) compared to TPS22921 (4,200 units).

All substitute parts maintain the -40°C to 85°C operating temperature range and surface mount compatibility required for the original application.

Frequently Asked Questions (FAQ)

Q: Can I directly replace FPF1013 with any N-Channel substitute without circuit modification?

A: Yes, N-Channel substitutes (TCK112G,LF, TPS22924BYZR, TPS22924BYZT) maintain the same control logic and can be used as direct replacements. However, verify that the load voltage range of the substitute part covers your application requirements. Package size differences may require PCB layout adjustments.

Q: What is the key difference between N-Channel and P-Channel substitutes?

A: N-Channel substitutes maintain identical control logic to the FPF1013. P-Channel substitutes require inverting the control signal at the input, necessitating circuit design changes. Select based on your existing control architecture.

Q: Does the TCK112G,LF package size affect compatibility?

A: The TCK112G,LF uses a 6-WCSPC package (1.5x1.0mm) compared to the FPF1013's 6-WLCSP (0.96x1.66mm). While both are surface mount ball grid arrays, the larger footprint requires PCB layout verification to ensure clearance and signal integrity.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed are RoHS3 compliant. The FPF1013, being obsolete, does not have RoHS3 status specified. Verify compliance requirements for your application before final part selection.

Q: What is the significance of on-resistance (Rds On) differences?

A: Lower on-resistance reduces power dissipation and heat generation during switching. TCK112G,LF (8.3mOhm) dissipates less power than the FPF1013 (17mOhm), improving efficiency. TPS22924 variants (18.3mOhm) are comparable to the original. Select based on thermal budget requirements.

Q: Can I use a substitute with higher current rating than the FPF1013?

A: Yes. Substitutes with higher current ratings (2A or 3A) are backward compatible with 1.5A applications. The device will operate within its safe operating area. Verify that the load voltage range and on-resistance meet your application requirements.

Q: What packaging options are available for the TPS22924 series?

A: TPS22924BYZR is supplied in cut tape (CT) & Digi-Reel packaging. TPS22924BYZT is supplied in tape & reel (TR) packaging. Both use the 6-DSBGA package. Select based on your procurement and assembly process requirements.

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