FAN48632UC35X

Special Purpose Regulators Overview

The FAN48632UC35X is a TinyBoost synchronous step-up regulator designed for GSM power amplifier supply applications. It operates with an input voltage range of 2.35 V to 5.5 V and delivers up to 2 A pulsed output current. The device features a fixed 2.5 MHz switching frequency and offers selectable output voltages of 3.5 V or 3.7 V. Packaged in a compact 16-WLCSP (1.78x1.78 mm) format, it supports operation across a temperature range of -40°C to +85°C.

Special Purpose Regulators Feature Summary

• Integrates bypass mode for direct connection to battery during low load conditions
• Supports high pulsed-load currents required by RF power amplifiers
• Utilizes synchronous rectification to maximize conversion efficiency
• Provides compact footprint suitable for space-constrained mobile designs

Special Purpose Regulators Applications

• GSM Power Amplifier supply regulation
• Mobile phone power management systems
• Battery-powered portable electronic devices

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized onsemi channels due to End-of-Life status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Validate package marking against official datasheet specifications to prevent counterfeit substitution. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to assembly.

Special Purpose Regulators Selection Notes

Select this component when designing for GSM PA biasing requiring high peak current capability within a minimal board area. The fixed output options eliminate external resistor networks, simplifying schematic design. Consider the thermal performance of the WLCSP package relative to surrounding components during layout planning.

Special Purpose Regulators Part Context

This part belongs to the TinyBoost family of synchronous boost regulators from onsemi. It shares architectural similarities with other models in the series but is specifically optimized for the transient response demands of cellular communication modules. The UC35X suffix denotes the specific output voltage configuration and packaging variant.

Special Purpose Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Due to the End-of-Life status, alternative solutions require careful evaluation of pin compatibility and electrical parameter alignment.