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FAN53880UC001X is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG INTEGRATED MICRO PMIC. Review the specifications below when checking this part for your BOM.
The FAN53880UC001X is a synchronous step-down DC-DC converter from onsemi's TinyBuck series, designed for high-efficiency power management in compact systems. It integrates a 2.4 MHz switching frequency to allow the use of small external components while maintaining stable output regulation. The device features an adjustable output voltage range and supports programmable soft-start functionality to limit inrush current during startup. Packaged in a 20-WLCSP format, it provides a robust solution for space-constrained applications requiring reliable voltage conversion with minimal footprint.
Verify the specific suffix UC001X against the manufacturer datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with the 20-WLCSP (1.96x1.56 mm) footprint during PCB layout. Check for RoHS compliance status if environmental regulations apply to your final product assembly.
Select this component when a small form factor is critical due to its WLCSP packaging. The 2.4 MHz operation allows for smaller inductors compared to lower-frequency alternatives. Verify that the required output current does not exceed the device's thermal limits within the specified operating temperature range of -40°C to 85°C.
This part belongs to onsemi's TinyBuck family of synchronous buck converters. These ICs are engineered for applications demanding high power density and efficient voltage regulation in limited board space. The series typically targets mobile and portable markets where battery life and physical size are primary design constraints.
Consult official substitution guides for compatible regulators within the same TinyBuck family or equivalent products from other manufacturers offering similar WLCSP footprints and electrical specifications.
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