LV5857MX Datasheet | SANYO

.DataSheet.co.kr Ordering number : ENA1843 Bi-CMOS IC LV5857MX Overview Step-down Switching Regulator LV5857MX is a 1ch step-down switching regulator. With built-in two 0.13Ω power MOSFET switch, it achieves high output current and high efficiency. With low-heat resistance, miniature package MFP8 (200mil) with heat-sink is adopted. Since it is Current mode control type, it has good load current response, and phase pensation is easy. With ON/OFF pin, operating can be less than 60μA at stand-by mode. It has cycle-by-cycle over current protection for load devices. With external capacitor, it achieves soft start. Functions - 3A 1ch step-down - Small package: MFP8 (200mil) with heat sink - High efficiency (93% IOUT = 1A, VIN = 12V, VO = 5V) - Standby mode - Over-current protection(Latch off method) - Thermal shutdown protection - Reference voltage: 0.672V - Fixed frequency: 340kHz - Soft start / Soft stop Specifications Parameter Maximum Ratings at Ta = 25°C Symbol VIN max VBT max VSW max VBS-SW max VEN max Vfs max Pd max Tj max Topr Tstg Mount on a specified board - Conditions Ratings 20 25 VIN max 7 20 7 2.05 150 -20 to 80 -40 to 150 Unit V V V V V V W °C °C °C Maximum input VIN voltage BOOT pin maximum voltage SW pin maximum voltage BOOT pin-SW pin maximum voltage EN Maximum Voltage FB, P, SS pin maximum voltage Allowable power dissipation Junction temperature Operating temperature Storage temperature Specified substrate : 46.0mm х 32.0mm х 1.6mm glass epoxy substrate. Note: Plan the maximum voltage while including coil and surge voltages, so that the maximum voltage is not exceeded even for an instant. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as...