FAN48623UC35X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN48623UC35X is a synchronous TinyBoost step-up regulator manufactured by onsemi, designed for GSM power amplifier supply applications. It operates with an input voltage range of 2.35 V to 5.5 V and provides fixed output voltages of 3.5 V or 3.7 V. The device supports a pulsed load current of up to 2.0 A and integrates a bypass mode for enhanced efficiency during low-load conditions. Operating at a switching frequency of 2.5 MHz, it utilizes a compact 16-ball WLCSP package measuring 1.78 mm x 1.78 mm. The component functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a synchronous boost converter topology optimized for high-efficiency operation in mobile communication devices.
• Includes a dedicated bypass mode that allows direct connection from input to output to minimize power loss under specific load conditions.
• Features a compact 16-ball wafer-level chip scale package (WLCSP) design to maximize board space utilization.

Voltage Regulators - DC DC Switching Regulators Applications

• GSM power amplifier supply regulation
• Mobile phone power management systems
• Portable electronic device voltage boosting

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation against the manufacturer's official documentation to confirm the exact output voltage option, as variants exist for different fixed outputs. Confirm availability status directly with authorized distributors, as lifecycle changes may affect stock levels. Ensure compliance with RoHS directives and check for any recent product change notices regarding packaging or material composition updates prior to finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring a compact solution for GSM PA biasing with high peak current demands. Evaluate the trade-off between the 2.5 MHz switching frequency and external component size requirements. Consider the thermal performance characteristics inherent to the small WLCSP footprint when determining PCB layout constraints and heat dissipation strategies for the application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TinyBoost family of synchronous regulators from onsemi, which are engineered specifically for portable wireless communications. The series focuses on minimizing physical footprint while maintaining robust performance for pulsed loads typical in cellular transceivers. It serves as a specialized power management integrated circuit within the broader PMIC category, targeting single-output boost conversion needs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the official datasheet for cross-reference information. Verify pin compatibility and electrical specifications if considering alternative manufacturers. Check for updated lifecycle statuses to ensure long-term supply stability for production runs.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the purpose of the bypass mode in this regulator?

The bypass mode connects the input directly to the output, reducing power consumption and improving efficiency when the input voltage is sufficiently close to the required output voltage.

What package type does the FAN48623UC35X use?

It uses a 16-ball Wafer Level Chip Scale Package (WLCSP) with dimensions of 1.78 mm x 1.78 mm.