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RT9711BGB
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:1 SOT23-5
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR)
- Switch Type：USB Switch
- Number of Outputs：1
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：N-Channel
- Interface：On/Off
- Voltage - Load：2.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：1.5A
- Rds On (Typ)：80mOhm
- Input Type：Non-Inverting
- Features：Status Flag
- Fault Protection：Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-5
- Package / Case：SC-74A, SOT-753
- Grade：-
- Qualification：-
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Overview
The RT9711BGB is a single N-MOSFET high-side power switch optimized for USB applications. It features a typical RDS(ON) of 80mΩ and supports a continuous load current of 1.5A. The device operates within an input voltage range of 2.5V to 5.5V. Key electrical parameters include a typical quiescent current of 25μA in the on-state and 1μA in the off-state. It includes an open-drain fault flag output and offers thermal shutdown, under-voltage lockout (UVLO), and current limiting protection.
Feature Summary
- Built-in charge pump drives internal MOSFET with low on-resistance
- Open-drain fault flag indicates status to local controller
- Soft-start limits inrush current during hot plug-in
- Reverse current flow blocking without body diode
Applications
- Self-powered Universal Serial Bus (USB) devices
- Bus-powered Universal Serial Bus (USB) peripherals
- Portable battery-operated equipment
Procurement Notes
Verify the specific suffix BGB against official Richtek documentation to confirm package type and lead plating system. Ensure the component matches the required pinout and electrical specifications for your design. Check for RoHS compliance and lead-free status as indicated in the manufacturer's ordering information.
Selection Notes
Select this component for applications requiring low voltage drop and high current handling in USB interfaces. Consider the 80mΩ on-resistance for efficiency and the 1.5A current rating for load requirements. Evaluate the need for fault flagging and protection features like thermal shutdown and UVLO for system reliability.
Part Context
The RT9711 series comprises cost-effective, low-voltage high-side power switches. Variants such as RT9711A/B/C/D offer different current ratings and package options including SOT-23-5, TSOT-23-5, SOP-8, and MSOP-8. The series is designed to meet USB specifications with integrated protection mechanisms.
Replacement Considerations
Consult official cross-reference data for verified substitutes. Generic replacements may not match the specific 80mΩ resistance or 1.5A current rating. Verify pin compatibility and protection feature alignment before substitution.
