FAN5336UMPX

Voltage Regulators - DC DC Switching Regulators Overview

The FAN5336UMPX is a synchronous step-up (boost) switching voltage regulator manufactured by onsemi. It integrates high-side and low-side power MOSFETs to provide efficient power conversion from lower input voltages to higher regulated output levels. The device operates with an input voltage range of 2.7 V to 5.5 V and delivers a maximum output current capability suitable for portable applications. It features a fixed switching frequency of 1.5 MHz, allowing for the use of small external inductors and capacitors. The regulator includes comprehensive protection mechanisms such as over-current protection, thermal shutdown, and soft-start functionality to ensure reliable operation under varying load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous boost converter topology with internal power switches
• Fixed 1.5 MHz switching frequency for compact passive component selection
• Built-in over-current protection and thermal shutdown for system safety
• Soft-start feature to limit inrush current during power-up

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring voltage boosting from single-cell lithium batteries
• Mobile phones and smartphones for powering RF modules or sensors
• Personal digital assistants (PDAs) and handheld gadgets
• Internet appliances and battery-powered consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix 'UMPX' against the official onsemi datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary. Ensure the ordering part number matches the specific temperature grade and packaging quantity required for your production line.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact, high-efficiency boost solution is needed for inputs up to 5.5 V. The integrated MOSFETs reduce board space compared to discrete solutions. Consider the 1.5 MHz frequency trade-off between efficiency and passive size. Verify that the required output voltage falls within the adjustable range supported by the feedback network configuration specified in the datasheet.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN5336 series of mobile-friendly power management ICs. It is designed specifically for applications where space constraints and battery life are critical. The series typically targets portable consumer electronics, offering a balance of performance and integration level suitable for modern handheld devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible replacements within the FAN5336 family or other onsemi boost regulators with similar electrical characteristics. Ensure any substitute maintains the same switching frequency and package dimensions to avoid PCB redesign.