FAN53555BUC13X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53555BUC13X is a synchronous step-down switching regulator from onsemi's TinyBuck series, 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 of output current. The device features a fixed output voltage of 0.8 V and a switching frequency of 2.4 MHz. It supports programmable operation within a range of 0.8 V to 1.43 V. The component functions within an ambient temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for high efficiency in a compact footprint.
• Supports digitally programmable output voltage settings via external configuration.
• Utilizes a fixed 2.4 MHz switching frequency to minimize passive component size.

Voltage Regulators - DC DC Switching Regulators Applications

• Cloud systems computing power distribution
• Portable electronic devices requiring efficient DC-DC conversion
• Embedded systems with single-output voltage regulation needs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest documentation before integration. Confirm availability status as this part may be subject to end-of-life notices or discontinuation. Ensure that the WLCSP-20 package dimensions align with the target PCB layout constraints. Cross-reference the ordering information with official distributor catalogs to validate current production status.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 0.8 V output is required alongside high current capability. The 20-WLCSP package offers space savings compared to larger BGA options. Consider the 2.4 MHz frequency for balancing transient response and EMI performance. Verify that the input voltage source remains stable within the 2.5 V to 5.5 V operational window for reliable regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to onsemi's TinyBuck family, designed for portable applications. It shares architectural similarities with other FAN5355x variants but differs in output voltage specifications and current ratings. The series emphasizes small form factor solutions for mobile and embedded markets.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

FAN53555BUC23X: Offers programmable output voltage instead of fixed 0.8 V. FAN53555BUC24X: Provides 4 A output current with programmable voltage. FAN53555BUC09X: Features programmable voltage range from 0.603 V to 1.411 V.