FAN5336UMPX

Voltage Regulators - DC DC Switching Regulators Overview

The FAN5336UMPX is a synchronous step-up (boost) switching voltage regulator manufactured by Fairchild Semiconductor. It integrates a power MOSFET and operates at a fixed switching frequency of 1.5 MHz. The device supports an input voltage range from 2.7 V to 3.6 V, delivering a regulated output voltage adjustable between 2.5 V and 5.5 V. It provides a maximum continuous output current of 1.5 A. The component is housed in a compact 6-lead SON package with dimensions of 3 mm x 3 mm and a height of 0.80 mm.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency synchronous boost converter with an internal power MOSFET to minimize external component count.
• Operates at a fixed 1.5 MHz switching frequency, enabling the use of small passive components for space-constrained designs.
• Features a wide input voltage range suitable for single-cell lithium-ion or lithium-polymer battery applications.

Voltage Regulators - DC DC Switching Regulators Applications

• Powering portable consumer electronics such as smartphones and tablets
• Supplying voltage rails for mobile communication modules
• Battery-powered handheld devices requiring efficient step-up conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'UM' against the official Fairchild datasheet to confirm pinout and thermal pad configuration. Ensure the ordering part number matches the exact package variant required for your PCB layout. Cross-reference the manufacturer's latest documentation to confirm RoHS compliance status and any recent design revisions before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for boosting single-cell battery voltage to higher logic levels. The integrated MOSFET simplifies design compared to discrete solutions. Consider the 1.5 MHz frequency for balancing efficiency and EMI. Verify that the required output current does not exceed the 1.5 A limit under your specific thermal conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN5336 family of synchronous boost converters designed for mobile-friendly applications. It is distinct from other Fairchild PMICs like the FAN53555 buck regulators or the FAN5236 dual-output controllers. The family focuses on providing efficient power management for portable devices using single-cell batteries.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official replacement guide or contact technical support for qualified alternatives if this component is unavailable.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the switching frequency of the FAN5336UMPX?

The device operates at a fixed switching frequency of 1.5 MHz.

Does the FAN5336UMPX include an internal MOSFET?

Yes, it integrates a synchronous power MOSFET within the package.