RT9728 Datasheet PDF | Richtek Technology

Richtek Technology RT9728

The RT9728 is a cost effective, low voltage, single P-MOSFET high side power switch IC for USB application with a programmable current limit feature. The RT9728 offers a programmable current limit threshold between 75mA and 1.3A (typ.) via an external resistor. The ±10% current limit accuracy can be realized for all current limit settings.

Part No.	RT9728
Datasheet	RT9728 Download
Manufacturer	Richtek Technology
Description	1.3A Power Switch
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GENERAL DESCRIPTION

Low switch-on resistance (typ.120mΩ) and low supply current (typ. 120μA) are realized in this IC. 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 mis-operation from happening due to high inrush current. The RT9728 is an ideal solution for USB power supply and can support flexible applications since it is functional for various current limit requirements. It is available in WDFN-6L 2x2 package. Ordering Information RT9728 Pin 1 Orientation*** (2) : Quadrant 2, Follow EIA-481-D (For RT9728GQW Only) Package Type QW : WDFN-6L 2x2 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Z : ECO (Ecological Element with Halogen Free and Pb free) Note : ***Empty means Pin1 orientation is Quadrant 1 Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes.