AOZ1361DI-01 Alpha & Omega

AOZ1361DI 28V/2A Programmable Current-Limited Load Switch General Description Features The AOZ1361DI is a high-side load switch intended for 35m maximum on resistance applications that require circuit protection. The device 2A minimum continuous current operates from voltages between 4.5V and 28V, and can Programmable current limit handle a continuous current up to 3A. The internal 4.5V to 28V operating input voltage current limiting circuit protects the input supply voltage from large load current. The current limit can be set with Low quiescent current an external resistor. The AOZ1361DI provides thermal Under-voltage lockout protection function that limits excessive power Thermal shutdown protection dissipation. An open-drain fault indicator pulls low when Open-drain fault indicator with delay an over-current or thermal shutdown event occurs. The device employs internal soft-start circuitry to control Small 4x4 DFN package inrush current due to highly capacitive loads associated 2.5kV ESD rating with hot-plug events. It features low quiescent current of 220A and the supply current reduces to less than 1A in Applications shutdown. Notebook PCs The AOZ1361DI is available in a 10-pin 4x4 DFN Hot swap supplies package and can operate over -40 C to +85 C temperature range. Typical Application V V IN OUT 10 1 IN OUT C1 C2 1F 9 2 0.1F IN OUT AOZ1361DI 6 7 EN SET OFF ON +5V R1 4 5 74.5k R2 GND SS C4 100k 1nF 3 8 FLTB TFLT C3 1nF Rev. 1.4 May 2010 www.aosmd.com Page 1 of 12AOZ1361DI Ordering Information Part Number Feature Package Temperature Range Environmental Auto-restart DFN 4x4 10 -40C to +85C RoHS Compliant AOZ1361DI-01 Green Product Latch-off AOZ1361DI-02 AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit www.aosmd.com/web/quality/rohs compliant.jsp for additional information. Pin Configuration TOP VIEW IN 1 10 OUT OUT 2 9 IN OUT FLTB 3 8 TFLT 4 7 GND SET GND SS 5 6 EN DFN 4x4 10 Pin Description Pin Number Pin Name Pin Function 1, 2 IN P-channel MOSFET source. Connect a 1F capacitor from IN to GND. 3 FLTB Fault output pin. This is an open drain output that is internally pulled low to indicate a fault condition. Connect to 5V thru a pull up resistor. 4 GND Ground. 5 SS Soft-Start Pin. Connect a capacitor from SS to GND to set the soft-start time. 6 EN Enable Input. 7 SET Current Limit Set Pin. Connect a resistor from SET to GND to set the switch current limit. 8 TFLT Fault Delay pin. Connect a capacitor from TFLT to GND to set the Fault delay time. 9, 10 OUT P-channel MOSFET Drain. Connect a 0.1F capacitor from OUT to GND. Rev. 1.4 May 2010 www.aosmd.com Page 2 of 12