Ordering number : ENA2120B LV58063MC Bi-CMOS IC Step-down Switching Regulator LV58063MC Specifications Absolute Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Maximum input V voltage Vmax 32 V IN IN BOOT pin maximum voltage Vmax 37 V BT SW pin maximum voltage V max V max V SW IN BOOT pin-SW pin maximum voltage V max 7V BS-SW FB, EN, COMP, SS pin maximum Vfs max 7V voltage Allowable power dissipation Pd max Mount on a specified board * 2.05 W Junction temperature Tj max 150 C Operating temperature Topr -20 to +80 C Storage temperature Tstg -40 to +150 C * Specified board: 46.4mm 31.8mm 1.7mm, glass epoxy. Note: Plan the maximum voltage while including coil and surge voltages, so that the maximum voltage is not exceeded even for an instant. Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Recommended Operating Conditions at Ta = 25C Parameter Symbol Conditions Ratings Unit V pin voltage V 8 to 28 V IN IN BOOT pin voltage V -0.3 to 34 V BT SW pin voltage V -0.4 to V V SW IN BOOT pin-SW pin voltage V 6.5 V BS-SW FB, EN, COMP, SS pin voltage V 6V FSO Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. Electrical Characteristics at Ta = 25C V = 12V, unless otherwise specified. IN Ratings Parameter Symbol Conditions Unit min typ max IC current drain in standby I1 EN=0V 70 A CC IC current drain in operation I2 EN=open, FB=1V 5 mA CC Efficiency Effcy V =12V, I =1A, V =5V 90 % IN OUT OUT Design target: *1 Reference voltage Vref V =8V to 28V (2%) -2%0.8 +2%V IN FB pin bias current Iref FB=0.8V application 10 100 nA High-side ON resistance RonH BOOT=5V 0.13 Low-side ON resistance RonL 7 Oscillation frequency F 296 370 444kHz OSC Oscillation frequency during F 30 38 46 kHz OSCS short-circuit protection EN high-threshold voltage Venh 1.9 V EN low-threshold voltage Venl 0.8 V EN pull-up corrent Ien EN=0V 16 A Maximum ON DUTY D max 80 % Current limit peak value Icl V =12V, V =5V, L=10H 3.8 A IN OUT Thermal shutdown temperature Ttsd *Design guarantee *2 160 C Thermal shutdown temperature Dtsd *Design guarantee *2 40 C hysteresis Soft start current I SS=0V 6 10 14 A SS *1: Design target (not tested before shipment) *2: Design guarantee (value guaranteed by design and not tested before shipment) Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. No.A2120-2/6