The RT9742MNGJ5 is a high-side USB switch designed for efficient power management applications. Manufactured by Richtek USA Inc., this device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact TSOT23-5 package. The RT9742MNGJ5 features a maximum output current of 1.5A and operates within a load voltage range of 2.7V to 6V. With a typical on-resistance (Rds On) of 70mOhm, it ensures minimal power loss and high efficiency. The device is REACH unaffected and RoHS3 compliant, making it suitable for environmentally conscious designs. It also has a moisture sensitivity level (MSL) of 3, allowing for 168 hours of exposure before reflow soldering.
The RT9742MNGJ5 offers several unique features that set it apart from similar models. Its high-side output configuration and 1:1 input-to-output ratio make it ideal for applications requiring straightforward power switching. The device includes comprehensive fault protection mechanisms such as fixed current limiting, over-temperature protection, reverse current protection, and under-voltage lockout (UVLO). These features ensure robust performance and reliability in various operating conditions. Additionally, the RT9742MNGJ5 is available in a surface-mount package, facilitating easy integration into compact designs.
The RT9742MNGJ5 is well-suited for a variety of applications, particularly those involving USB power switching. Its ability to handle a maximum output current of 1.5A makes it ideal for powering USB devices and peripherals. The device's wide load voltage range of 2.7V to 6V allows it to be used in systems with varying power supply requirements. Its compact TSOT23-5 package and surface-mount mounting type make it suitable for space-constrained designs, such as portable electronics and consumer devices. The RT9742MNGJ5 is also appropriate for applications requiring high reliability and protection fault, such as industrial control systems and automotive electronics.
In summary, the RT9742MNGJ5 is a versatile and reliable USB switch designed for efficient power management. Its high-side output configuration, comprehensive fault protection, and compact package make it an excellent choice for a wide range of applications. The device's compliance with environmental regulations and robust performance ensure it meets the demands of modern electronics. Whether used in consumer devices, industrial systems, or automotive applications, the RT9742MNGJ5 provides a reliable and efficient solution for USB power switching.
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