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RT9742CNGJ5F
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CH 1:1 TSOT23-5
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：2.7V ~ 6V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：2A
- Rds On (Typ)：55mOhm
- Input Type：Non-Inverting
- Features：Status Flag
- Fault Protection：Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：TSOT-23-5 (FC)
- Package / Case：SOT-23-5 Thin, TSOT-23-5
- Grade：-
- Qualification：-
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Overview
The RT9742CNGJ5F is a single-channel, low-voltage N-MOSFET high-side power switch IC designed for USB applications. It features an embedded delay function to prevent inrush-current miss-operation and integrates over-current protection with short fold-back, thermal shutdown, and under-voltage lockout circuits. A flag output indicates fault conditions to the local USB controller. The device supports flexible applications with available packages including TSOT-23-5, TSOT-23-5 (FC), and SOT-23-3.
Feature Summary
- Integrates over-current protection with short fold-back, thermal shutdown, and under-voltage lockout circuits.
- Includes an embedded delay function to prevent miss-operation due to inrush current.
- Provides a flag output to indicate fault conditions to the local USB controller.
Applications
- USB power supply
- High-side load switching
Procurement Notes
Verify that the specific suffix 'C' aligns with the manufacturer's official part numbering convention for this series. Confirm package availability matches the required TSOT-23-5 or TSOT-23-5 (FC) configuration. Ensure the component meets RoHS3 specifications as documented for the RT9742 family.
Selection Notes
Select this component for cost-effective, low-voltage USB power management requiring integrated protection. Consider the embedded delay feature for applications sensitive to inrush currents. Verify that the single-channel configuration and flag output meet the system's control and monitoring requirements.
Part Context
The RT9742CNGJ5F belongs to the RT9742 family of high-side power switches from Richtek Technology Corporation. This family offers various current ratings and resistance options, utilizing N-MOSFET technology for efficient load switching in portable and USB-powered devices.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential cross-references within the RT9742 series or similar high-side switch families.
