Description Output 1.5A and below High Efficiency Rate Step-down Switching Regulator Power MOSFET Internal Type BD9673EFJ mainly used as secondary side Power supply, for example from fixed Power supply of 12V, 24V etc, Step-down Output of 1.2V/1.8V/3.3V/5V, etc, can be produced. This IC has external Coil/Capacitor down-sizing through 300 kHz Frequency operation, inside Nch-FET SW for 45V “withstand-pressure†commutation and also, high speed load response through Current Mode Control is a simple external setting phase comp ensation system, through a wide range external constant, a compact Power supply can be produced easily.
Features 1) Internal 200 mΩNch MOSFET 2) Output Current 1.5A 3) Oscillation Frequency 300kHz 4) Synchronizes to External Clock ( 200kHz~500kHz ) 5) Feedback Voltage 1.0V±1.0% 6) Internal Soft Start Function 7) Internal Over Current Protect Circuit, Low Input Error Prevention Circuit, Heat Protect Circuit 8) ON/OFF Control through EN Pin (Standby Current 0 A Typ.) 9) Package: HTSOP-J8 Package
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