KTS1690A USB VBUS ISOURCE Load Switch Kinetic Technologies KTS1690A USB VBUS ISOURCE Load Switch is a low-resistance load switch with adjustable current limit, soft-start, fast turn ON mode, 'ideal diode' reverse current protection, and an integrated Transient Voltage Suppressor (TVS). The KTS1690A is optimized to protect systems with USB Type-C™ ports that source up to 15W at 5V and must withstand up to 29V on VBUS (OUT pin). The KTS1690A uses an external resistor to set the current limit from 400mA to 3.7A.