FAN5903BUCX 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.
Mfr Part #:

FAN5903BUCX

Available from 1 distributors
Mfr Name: On Semiconductor
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.
✓ Total Stock: 1,465 pcs
$ Price Range: $0.75

FAN5903BUCX Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,465 pcs
1465 pcs On Request 1 On Request On Request 13+ On Request On Request

FAN5903BUCX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Mounting Type
Number of Outputs
Operating Temperature
Output Current
Output Voltage
Supplier Device Package
Topology
Voltage

FAN5903BUCX Description

Short technical summary and product information.

The FAN5903BUCX from ON Semiconductor is a switching voltage regulator with a buck converter topology. It is designed to provide a stable output voltage of 0.4V from an input voltage range of 2.7V to 5.5V, capable of delivering up to 2.4A of output current. The device operates at a high switching frequency of 6MHz, enabling the use of smaller external components and improving transient response.

 

This regulator is suitable for various applications, including those in 3G, 3.5G, and 4G RF power amplifier systems. It features a low operating supply current of 70µA and a load regulation of ±25mV. The FAN5903BUCX is available in a compact 9-WLCSP package, making it ideal for space-constrained designs. Its operating temperature range is -40°C to +85°C.

 

The component is surface-mounted and supplied on a reel, with a standard package quantity of 3000 units. Its RoHS3 compliance status is noted, along with an MSL of 1 and REACH unaffected status, though these compliance details are of low confidence.

FAN5903BUCX Quick Information

Product Type: Switching Voltage Regulator
Series: Fan5903
Canonical Name: FAN5903BUCX Switching Voltage Regulator
Subcategory: Switching Voltage Regulators

FAN5903BUCX Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FAN5903BUCX Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

FAN5903BUCX Features

  • Buck converter topology for efficient power regulation.
  • 2.4A maximum output current capability.
  • Wide input voltage range from 2.7V to 5.5V.
  • High 6MHz switching frequency.
  • Compact 9-WLCSP package for space saving.

FAN5903BUCX Applications

  • Used in battery-operated portable electronic devices.
  • Suitable for low-voltage point-of-load designs.
  • Ideal for space-constrained power management circuits.
  • Applied in systems with 2.7V to 5.5V supply rails.

FAN5903BUCX FAQs

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

The input voltage range is 2.7V to 5.5V.

What is the package type?

The package is WLCSP-9.

What is the operating temperature range?

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

What is the switching frequency?

The switching frequency is 6 MHz.

What is the output current capability?

The output current is 2.4 A.

What is the operating supply current?

The operating supply current is 70 µA.

What is the load regulation?

The load regulation is ±25 mV.

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