FAN49103AUC340X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN49103AUC340X is a synchronous buck-boost switching regulator IC from the TinyPower series by onsemi. It operates with an input voltage range of 2.5V to 5.5V and provides a fixed output voltage of 3.4V. The device delivers up to 2.5A of output current and integrates synchronous rectification for improved efficiency. It functions at a switching frequency of 1.8MHz and supports programmable output configurations alongside fixed options. The component is housed in a 20-UFBGA WLCSP package and is rated for operation between -40°C and +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification to enhance power conversion efficiency within a compact form factor.
• Supports buck-boost topology to maintain stable regulation across varying input and output voltage conditions.
• Features a high switching frequency that allows for the use of smaller external passive components.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronic devices requiring efficient power management
• Systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Embedded applications needing regulated power from fluctuating source voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '340X' confirms the fixed 3.4V output variant when sourcing. Ensure compatibility with the 20-UFBGA WLCSP footprint during PCB layout. Confirm thermal requirements align with the specified operating temperature range for the intended environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.4V output is required from a 2.5V to 5.5V input rail. It is suitable for designs prioritizing high efficiency through synchronous rectification. Consider the 2.5A current capability and 1.8MHz frequency for space-constrained layouts.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TinyPower series, designed for compact power management solutions. It complements other regulators in the family offering different voltage outputs or programmable features. The series targets mobile and IoT applications where size and efficiency are critical constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct substitutes within the FAN49103 family with different output voltage suffixes. Verify pin-to-pin compatibility if replacing with similar buck-boost regulators from other manufacturers. Ensure equivalent current and frequency specifications match the design requirements.