FAN53555UC00X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53555UC00X is a synchronous buck switching voltage regulator manufactured by onsemi. It accepts an input voltage range of 2.5 V to 5.5 V and provides a fixed output voltage of 1.2 V with a maximum output current of 5 A. The device operates at a switching frequency of 2.75 MHz and features a load regulation of -0.1 %/A. Packaged in a WLCSP-20 format measuring 1.6 x 2 x 0.378 mm, it supports surface mount installation and functions within a temperature range of -40 °C to +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology for high efficiency
• Fixed 1.2 V output configuration
• Compact WLCSP-20 package design

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring stable power rails
• Embedded systems utilizing 5V input sources
• Consumer electronics with space-constrained PCB layouts

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices prior to procurement. Ensure storage conditions meet moisture sensitivity level requirements. Validate that the specific suffix matches the required fixed output voltage specification for your design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 1.2 V rail is required from a 2.5 V to 5.5 V input source. The 5 A current capability suits high-power applications. Consider the WLCSP-20 footprint for size constraints. Compare against programmable variants if adjustable voltage is needed instead of a fixed output.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the FAN53555 series of digitally programmable regulators, though this specific suffix denotes a fixed output variant. It complements other models like FAN53555UC08X and FAN53555UC13X which offer different voltage ranges. The series targets mobile and portable applications needing efficient power management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

FAN53555UC01X offers a similar 5 A buck profile but with a 0.9 V fixed output. FAN53555UC05X also provides 0.9 V output. For identical 1.2 V functionality, verify availability of FAN53555UC00X as it may be discontinued.