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FPF1321BUCX The ON Semiconductor FPF1321BUCX is a Dual-Input Single-Output (DISO) load switch. It operates from a 1.5V to 5.5V input range and supports up to 1.5A per channel.
Mfr Part #:

FPF1321BUCX

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor FPF1321BUCX is a Dual-Input Single-Output (DISO) load switch. It operates from a 1.5V to 5.5V input range and supports up to 1.5A per channel.
✓ Total Stock: 7,864 pcs
$ Price Range: $0.32

FPF1321BUCX Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
6,000 pcs
On Request
6000 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
1,864 pcs
On Request
1864 pcs On Request 1 On Request On Request 1507+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

FPF1321BUCX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Fault Protection
Features
Halogen Free
Input Type
Interface
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Ratio
Rds On (Typ)
Supplier Device Package
Switch Type
Voltage
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FPF1321BUCX Description

Short technical summary and product information.

The ON Semiconductor FPF1321BUCX is an advanced power switch designed for dual-input, single-output applications. It features two sets of slew-rate controlled, low on-resistance P-channel MOSFET switches, providing seamless power-source transitions with break-before-make operation.

 

Key electrical specifications include an input voltage range of 1.5V to 5.5V and a maximum switch current of 1.5A per channel. The typical on-resistance is 42 mOhm at 3.3V VIN, with a maximum of 170 mOhm. The device incorporates True Reverse-Current Blocking (TRCB) to prevent unwanted current flow.

 

Designed for portable devices, the FPF1321BUCX is available in a compact 6-WLCSP package, measuring 0.96x1.66 mm. It operates within a temperature range of -40°C to 85°C. The switch is controlled by logic inputs (SEL and EN pins) compatible with low-voltage GPIO interfaces.

 

This IC offers features like load discharge and slew rate control, which prevents inrush current and voltage droop. It also includes ESD protection exceeding 6 kV (HBM). The device is Pb-Free and Halide Free.

FPF1321BUCX Quick Information

Product Type: Power Switch IC
Series: FPF1321
Canonical Name: FPF1321BUCX Dual-Input Single-Output Advanced Power Switch with True Reverse-Current Blocking
Subcategory: Power Distribution

FPF1321BUCX Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free

FPF1321BUCX Estimated Pricing

Qty Low High
1+ $0.32 $0.32

Estimated market price range - modelled values for guidance only, not live distributor offers.

FPF1321BUCX Features

  • Dual-input single-output load switch.
  • Operates from 1.5V to 5.5V input range.
  • Supports 1.5A maximum switch current.
  • Low typical on-resistance of 42 mOhm.
  • Compact 6-WLCSP package for space savings.

FPF1321BUCX Applications

  • Ideal for portable device power rails.
  • Enables seamless power source transitions.
  • Suitable for NFC SIM card power supply.
  • Prevents inrush current and voltage droop.

FPF1321BUCX FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the FPF1321BUCX?

The FPF1321BUCX operates from 1.5V to 5.5V.

What is the maximum switch current of the FPF1321BUCX?

The maximum switch current is 1.5A per channel.

What is the typical on-resistance of the FPF1321BUCX?

The typical on-resistance is 42 mOhm to 50 mOhm.

What is the operating temperature range of the FPF1321BUCX?

The operating temperature range is -40°C to +85°C.

What package is the FPF1321BUCX available in?

The FPF1321BUCX is available in a 6-WLCSP package.

What type of output does the FPF1321BUCX have?

The output is a P-channel high-side configuration.

Does the FPF1321BUCX include fault protection?

Yes, it includes reverse current fault protection.

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