RT9715DGBG

Overview

The RT9715DGBG is a single N-channel high-side power switch IC designed for USB applications. It features a typical on-resistance of 90mΩ and operates within a load voltage range of 2.7V to 5.5V. The device provides a maximum output current of 2A and includes integrated fault protection mechanisms such as fixed current limiting, thermal shutdown, reverse current blocking, and under-voltage lockout (UVLO). It utilizes an open-drain flag output to report fault conditions and requires no supply voltage. The component is housed in a SC-74A (SOT-753) surface-mount package.

Feature Summary

• Integrated N-MOSFET with low on-resistance for efficient power switching
• Comprehensive fault protection including over-current, thermal shutdown, and reverse current blocking
• Open-drain status flag output for real-time fault monitoring by the host controller

Applications

• USB peripheral power management
• Notebook PC port protection
• Bus-powered device interface circuits

Procurement Notes

Verify the specific suffix DGBG against the manufacturer's official datasheet to confirm the SC-74A package variant. Confirm end-of-life status, as related RT9715 variants have been discontinued. Ensure compatibility with existing PCB footprints for SOT-753 packages during sourcing.

Selection Notes

Select this component for applications requiring a compact, single-channel USB power switch with integrated protection. The 2A current rating suits standard USB peripherals. Verify that the 90mΩ on-resistance meets system voltage drop requirements. Consider the availability of replacement parts due to potential discontinuation of the series.

Part Context

The RT9715 series consists of cost-effective, low-voltage high-side power switches optimized for USB interfaces. These devices integrate charge pump circuitry to drive the internal MOSFET, ensuring low quiescent current and compliance with USB specifications. The series offers various current ratings and package options to fit diverse portable equipment designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Related models like RT9715BGF share similar electrical characteristics but differ in packaging or current ratings. Consult the manufacturer for current active alternatives.