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RT9702AGB
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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：2V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：1.1A
- 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 RT9702AGB is a single N-Channel MOSFET high-side power switch manufactured by Richtek USA Inc. It features an internal on-resistance of 80mΩ and supports continuous load currents of 500mA for the standard variant or 1.1A for the A variant. The device operates within a wide input voltage range of 2V to 5.5V and includes an open-drain fault flag output. Key protection mechanisms include current limiting, thermal shutdown, and reverse current flow blocking without a body diode. It is housed in a compact SOT-23-5 package.
Feature Summary
- Integrated low-voltage N-Channel MOSFET with typically 80mΩ on-resistance
- Open-drain fault flag output for status monitoring
- Built-in current limiting and thermal shutdown protection
- Reverse current flow blocking capability
Applications
- USB bus-powered hubs
- Self-powered USB peripherals
- ACPI power distribution systems
- PC card hot swap applications
Procurement Notes
Verify the specific suffix against official datasheets to confirm current rating variants (500mA vs 1.1A). Confirm package type matches SOT-23-5 requirements. Check RoHS compliance status as per manufacturer declarations. Ensure compatibility with 2V to 5.5V operating ranges. Validate pinout configurations for integration into existing designs.
Selection Notes
Select this component for cost-effective high-side switching in USB applications. Consider the 80mΩ resistance for efficiency needs. Evaluate the 500mA or 1.1A current limits based on load requirements. Utilize the fault flag for system diagnostics. Ensure thermal management aligns with shutdown thresholds.
Part Context
This part belongs to the RT9702 family of high-side power switches designed for USB and general power distribution. It serves as a self-powered switch solution minimizing board space through its small package. The family addresses hot-plug applications requiring soft-start characteristics and robust protection features.
Replacement Considerations
Check for direct substitutes within the RT9702 series such as RT9702A for higher current capacity. Verify equivalent packages like TSOT-23-5 if available. Ensure replacement parts maintain similar on-resistance and protection feature sets.
