Mfr Part #:

FAN5903UCX

The FAN5903UCX from ON Semiconductor is a current-mode switching regulator designed for applications like 3G, 3.5G, and 4G RF power amplifiers. It operates within a voltage range of 0.4V to 5.5V.

✓ Total Stock: 34,301 pcs

$ Price Range: $0.75

FAN5903UCX Available from 5 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	27,000 pcs On Request	27000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Flip Electronics ✓ Non-Authorised Inventory information	2,655 pcs On Request	2655 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Optech Co.,Limited ✓ Non-Authorised Inventory information	2,337 pcs On Request	2337 pcs	On Request	1	On Request	On Request	1628+	On Request	On Request
Smaxon Electronics ✓ Non-Authorised Inventory information	1,373 pcs On Request	1373 pcs	On Request	1	On Request	On Request	12+	On Request	On Request
Rayichip ✓ Non-Authorised Inventory information	936 pcs On Request	936 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

FAN5903UCX Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	Special Purpose Regulators
Manufacturer Name	On Semiconductor
Applications	Converter, 3G, 3.5G, 4G RF Power Amplifier
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature	-40°C ~ 85°C
Supplier Device Package	9-WLCSP (1.34x1.29)
Voltage	0.4V ~ 5.5V

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FAN5903UCX Description

Short technical summary and product information.

The FAN5903UCX is a switching regulator with current-mode control manufactured by ON Semiconductor. This component is suitable for demanding applications such as converters and RF power amplifiers for 3G, 3.5G, and 4G mobile devices.

Key electrical characteristics include an operating voltage range from 0.4V to 5.5V. The device is designed to operate within a temperature range of -40°C to 85°C, ensuring reliable performance in various environmental conditions.

Packaged in a compact 9-UFBGA, WLCSP (9-WLCSP with dimensions of 1.34x1.29), the FAN5903UCX is designed for surface mount applications. Its single output configuration makes it a versatile choice for power management solutions.

This regulator complies with RoHS3 standards and has a Moisture Sensitivity Level (MSL) of 1, indicating unlimited usability under standard conditions. REACH status is unaffected.

FAN5903UCX Quick Information

Product Type: Switching Regulator

Canonical Name: FAN5903UCX Switching Regulator, Current-Mode

Subcategory: Special Purpose Regulators

FAN5903UCX Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

FAN5903UCX Estimated Pricing

Qty	Low	High
1+	$0.75	$0.75

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

FAN5903UCX Features

Current-mode switching regulator IC.
Wide 0.4V to 5.5V operating voltage.
Operates from -40°C to 85°C.
Compact 9-UFBGA, WLCSP package.
Suitable for RF power amplifiers.

FAN5903UCX Applications

Used in 3G, 3.5G, 4G systems.
Ideal for RF power amplifier circuits.
Suitable for converter applications.
Surface mount designs.

FAN5903UCX FAQs

6 frequently asked questions generated from this part’s specifications.

What is the operating voltage range for the FAN5903UCX?

The operating voltage range is 0.4V to 5.5V.

What is the operating temperature range for the FAN5903UCX?

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

What package type is the FAN5903UCX available in?

The FAN5903UCX is available in a 9-UFBGA, WLCSP package.

What are the applications for the FAN5903UCX?

Applications include converters and 3G, 3.5G, 4G RF power amplifiers.

What is the RoHS status of the FAN5903UCX?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the FAN5903UCX?

The Moisture Sensitivity Level (MSL) is 1 Unlimited.

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FAN5903BUCX

On Semiconductor

The ON Semiconductor FAN5903BUCX is a switching voltage regulator designed for applications requiring efficient power management. It offers a 2.4A output current and operates within a wide input voltage range.

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