FAN53611AUC18X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53611AUC18X is a synchronous buck regulator manufactured by onsemi, designed for efficient DC-DC conversion in portable applications. It operates with an input voltage range of 2.3 V to 5.5 V and provides a fixed output voltage of 1.8 V. The device supports an output current of up to 1 A and features a selectable switching frequency of 3 MHz or 6 MHz. It utilizes WLCSP-6 packaging for compact footprint requirements. The regulator maintains a low quiescent current of 55 uA and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology ensures high efficiency across load conditions
• Dual selectable switching frequencies optimize design trade-offs between size and performance
• Compact WLCSP-6 package minimizes board space consumption
• Low quiescent current extends battery life in portable devices

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics
• Mobile communication devices
• Battery-powered systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distribution channels due to potential counterfeiting risks. Confirm RoHS compliance status via official manufacturer documentation before integration. Check for End-of-Life notices as availability may be restricted. Ensure proper handling procedures for WLCSP packages during assembly to prevent damage.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 1.8 V output is required from a single-cell lithium-ion source. The 1 A current capability suits moderate power loads. Consider the 6 MHz option for smaller external components if EMI constraints allow. Verify thermal management needs for high-load scenarios in small packages.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the FAN53611 series, which includes variants with different fixed output voltages and packaging options. This specific suffix indicates the 1.8 V output version in WLCSP-6 format. It shares core architecture with other members like FAN53611AUC12X but differs in output configuration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

FAN53611AUC12X offers similar electrical characteristics with a 1.2 V output instead of 1.8 V. FAN53611UC123X provides a 1.233 V output in the same package. Direct replacement requires verifying that the target circuit accepts the alternative fixed voltage level.