RT9711AGJ5

Overview

The RT9711AGJ5 is a high-side power switch designed for USB applications, featuring an integrated N-channel MOSFET with a typical on-resistance of 80mΩ. It supports a continuous load current of 1.5A and operates within a wide input voltage range of 2.5V to 5.5V. The device includes soft-start functionality to limit inrush current, under-voltage lockout at 1.7V typical, and thermal shutdown protection. It offers low quiescent current of 25μA in the on-state and 1μA in the off-state. An open-drain fault flag output provides status indication. The component is housed in a TSOT-23-5 package.

Feature Summary

• Compliant with USB specifications for portable battery-operated equipment
• Integrated soft-start mechanism limits inrush current during switch failure from high-current loads
• Open-drain fault flag output indicates operational status
• Reverse current flow blocking capability without body diode

Applications

• Powered Universal Serial Bus (USB) applications
• Bus-powered Universal Serial Bus (USB) applications
• Portable battery-operated equipment

Procurement Notes

Verify the specific suffix 'GJ5' corresponds to the TSOT-23-5 package type as documented in official Richtek ordering information. Confirm that the 'G' suffix indicates halogen-free and lead-free compliance if environmental standards are required. Ensure the design accommodates the 1.5A continuous load current rating and the 2.5V to 5.5V input voltage range. Check for any recent product change notices or end-of-life announcements from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a high-side switch with low on-resistance and USB compliance is required. The 1.5A current rating suits moderate power loads compared to lower-current variants like the RT9711C/D. The TSOT-23-5 package minimizes board space. Consider the 25μA quiescent current for battery life optimization. Verify that the open-drain flag interface matches the system's monitoring requirements.

Part Context

The RT9711 series comprises high-side power switches with flag outputs, available in various packages including SOT-23-5, TSOT-23-5, SOP-8, and MSOP-8. The AGJ5 variant specifically denotes the TSOT-23-5 package with lead-free plating. This series is part of Richtek's portfolio aimed at USB and portable electronics applications, offering protection features like overcurrent and thermal shutdown.

Replacement Considerations

Public confirmed substitute part numbers include RT9711AGB, RT9711AGBG, RT9711AGF, and RT9711AGJ5. These variants share the same functional description but may differ in package type or plating specification. Verify package compatibility and electrical parameters before substitution.

FAQ

What is the typical on-resistance of the RT9711AGJ5?

The typical on-resistance (RDS(ON)) is 80mΩ.

Does the RT9711AGJ5 support reverse current flow?

No, it features reverse current flow blocking capability due to the absence of a body diode.

What is the quiescent current in the off-state?

The typical quiescent current in the off-state is 1μA.