BD1484EFJ

Datasheet 4.2V to 18V, 3A 1ch Synchronous Buck Converter integrated FET BD1484EFJ ●General Description The BD1484EFJ is a synchronous step-down switching regulator that integrates 2 low ON-resistance N-channel MOSFETs. It achieves 3A continuous output current over a wide input supply range. Current mode operation provides fast transient response and easy phase compensation. ●Features  Low ESR Output Ceramic Capacitors are Available  Low Standby Current during Shutdown Mode  380 kHz Fixed Operating Frequency  Feedback voltage  0.925V ± 1.5%(Ta=25℃),  0.925V ± 2.0%(Ta=-25℃ to 85℃)  Protection Circuits  Under Voltage Lockout Protection  Thermal Shutdown  Over Current Protection ●Key Specifications  Input voltage range: 4.2V to 18V  Output voltage range: 0.925V to (Vin×0.7)V  Output current: 3.0A (Max.)  Switching Frequency 380kHz(Typ.)  Hi-side FET On-resistance: 0.15Ω(Typ.)  Lo-side FET On-resistance: 0.13Ω(Typ.)  Standby current: 15μA (Typ.)  Operating temperature range: -40℃ to +85℃ ●Package HTSOP-J8 (Typ.) (Typ.) (Max.) 4.90mm x 6.00mm x 1.00mm ●Applications Distributed Power System Pre-Regulator for Linear Regulator ●Typical Application Circuit C_SS 0.1μF HTSOP-J8 C_PC 3300pF R_PC 7.5kΩ R_DW 15kΩ R_UP 39kΩ SS EN COMP FB Thermal Pad (to be shorted to GND) BST R_BS 22Ω VIN C_BS 0.1μF SW GND VIN 12V C_VC1 10μF L 10µH VOUT 3.3V C_CO1 20μF ※R_BS protect from VIN-BST short destruction. Fig.1 Typical Application Circuit ○Pro...