MT3 608 ABSOLUTE MAXIMUM RATINGS IN, EN voltages ………..….…… -0.3V to 26V SW Voltage ……………………..-0.3V to 30V Operating Temperature….. -40°C to +85°C Storage Temperature Range -65°C to 150°C FB Voltages ..-0.3V to 6V Peak SW Sink and Source Current ………4A Junction Temperature ……………….. 160°C Lead Temperature (Soldering, 10s) .. +300°C PACKAGE/ORDER INFORMATION SW 1 6 NC 2 IN GND 5 FB 3 4 EN SOT23-5 SOT23-6 (MT3540) (MT3608) PIN DESCRIPTIONPINNAMEFUNCTION 1 SW Power Switch Output. SW is the drain of the internal MOSFET switch. Connect the power inductor and output rectifier to SW. SW can swing between GND and 28V. 2 GND Ground Pin 3 FB Feedback Input. The FB voltage is 0.6V. Connect a resistor divider to FB. Regulator On/Of Control Input. A high input at EN turns on the converter, and a 4 EN low input turns it off. When not used, connect EN to the input supply for automatic startup. 5 IN Input Supply Pin. Must be locally bypassed. 6 NC NC Aerosemi Technology Co., Ltd 2 Document Outline MT3608-P1 MT3608_P2 FUNCTION NAME