FAN53555UC13X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53555UC13X is a synchronous buck switching regulator from onsemi, housed in a 20-WLCSP package. It operates with an input voltage range of 2.5 V to 5.5 V and delivers up to 5 A output current. The device features a fixed 2.4 MHz switching frequency and provides a programmable output voltage ranging from 800 mV to 1.43 V. It includes integrated synchronous rectification for high efficiency and supports digital programming via I²C interface.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification architecture for enhanced power conversion efficiency across varying load conditions.
• Supports digital voltage scaling through an I²C interface, allowing dynamic adjustment of the output voltage level.
• Utilizes a compact wafer-level chip-scale package design to minimize printed circuit board footprint requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable computing devices requiring efficient core voltage regulation
• Smartphones and tablets needing compact power management solutions
• Embedded systems utilizing low-voltage high-current processors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the specific suffix matches required electrical parameters. Check for end-of-life status or obsolescence notices from the manufacturer. Ensure supply chain stability due to potential discontinuation risks associated with this part number.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a small form factor and high current capability are required within a limited voltage window. The fixed 2.4 MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the target application does not require shutdown functionality, as this variant lacks that feature.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the TinyBuck family of digitally programmable regulators designed for space-constrained portable electronics. It replaces older linear regulators to improve thermal performance and battery life in mobile applications. The series emphasizes high integration and minimal external component count.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

FAN53555BUC13X serves as a confirmed substitute offering identical electrical specifications and pinout compatibility within the same product family.