RT4841GQW

Overview

The RT4841GQW is a synchronous boost converter with output isolation, manufactured by Richtek USA Inc. It operates within an input voltage range of 8.6 V to 15.9 V and provides a fixed 5 V output capable of delivering up to 5 A. The device features a switching frequency of 500 kHz and a typical quiescent current of 5 mA. Designed for surface-mount installation, it is housed in a WQFN-20 package. The component supports an operating temperature range from -40°C to +85°C and complies with RoHS standards.

Feature Summary

• Integrates synchronous rectification for high conversion efficiency in boost applications.
• Provides galvanic isolation between the input source and the regulated output.
• Features a compact WQFN-20 package suitable for space-constrained designs.

Applications

• Voltage regulation in industrial control systems
• Power supply stages for communication equipment
• Isolated power generation in automotive electronics

Procurement Notes

Verify that the specific order matches the RT4841GQW designation, as the alias RT4841N-A may appear in documentation. Confirm the WQFN-20 package type and ensure compatibility with the required 8.6 V to 15.9 V input range. Check moisture sensitivity levels and storage conditions prior to assembly to maintain component integrity during soldering processes.

Selection Notes

Select this component when a fixed 5 V isolated output is required from a 12 V nominal rail. The 5 A output capability suits moderate load applications. Consider the 500 kHz switching frequency for balancing component size and EMI performance. Ensure the thermal design accommodates the WQFN-20 package dissipation characteristics within the specified temperature range.

Part Context

This part belongs to Richtek's line of switching voltage regulators, specifically categorized under PMICs. It functions as a standalone boost converter controller with integrated power switches. The GQW suffix indicates the specific tape-and-reel packaging and pin configuration variant available through authorized distributors.

Replacement Considerations

The RT4841N-A is listed as an alias for this part number. Verify functional equivalence and package compatibility before substitution. No other direct cross-reference models are confirmed in the provided data.