RT9742 Datasheet | Richtek

Description The RT9742 is a cost-effective, low-voltage, single N-MOSFET high-side Power Switch IC for USB application. Low switch-on resistance and low supply current are realized in this IC. The RT9742 integrates an over-current protection circuit, a short fold back circuit, a thermal shutdown circuit and an under-voltage lockout circuit for overall protection. Besides, a flag output is available to indicate fault conditions to the local USB controller. Furthermore, the chip also integrates an embedded delay function to prevent miss-operation from happening due to inrush-current. The RT9742 is an ideal solution for USB power supply and can support flexible applications since it is available in TSOT-23-5, TSOT-23-5 (FC) and SOT-23-3 package. Features - 70mΩ/55mΩ (typ.) N-MOSFET Switch - Operating Range : 2.7V to 6V - Reverse Blocking Current - Under Voltage Lockout - Deglitched Fault Report (FLG) - Thermal Protection with Fold-back - Over Current Protection - Short Circuit Protection - UL Approved- E219878 - Nemko Approved-NO109777 Applications - USB Peripherals - Notebook PCs Pin Configuration VIN EN/EN VOUT GND FLG TSOT-23-5 / TSOT-23-5 (FC) (TOP VIEW) VOUT VOUT VOUT GND VIN EN GND FLG TSOT-23-5 For RT9742M/V only TSOT-23-5 For RT9742U only Simplified Application Circuit Supply Voltage 2.7V to 6V USB Controller Over-Current Chip Enable EN/EN VOUT...