YB1900C

Ultra Low Quiescent Current Smart Load Switch Description The YB1900C is a high side slew rate controlled smart load switch. The slew rate control in YB1900C can effectively avoid the large in-rush current which is commonly observed in normal power switches. Moreover, the level shift in YB1900C allows customers to control 1.8 to 5.5V system with 1.5V logic and without sacrificing leakage current. The YB1900C has typical low RDS(on) around 100mΩ, which allows large power handling capabilities. Very low quiescent current and fast load discharge also makes it ideal for power sensitive applications nowadays. The YB1900C is available in SOT23-5 or SOT23-6 package with the temperature range valid from -40 to 85℃. YB1900C Features „ „ „ „ „ „ „ „ „ „ „ 1.8V to 5.5V Input Voltage Range Slew Rate Limited at 100μs Very Low RDS(on), Typically 100mΩ Less than 1μA Shutdown Current Output Voltage As Low As 0.6V Very Low Quiescent Current, Typically 2μA Fast Shutdown Load Discharge TTL / CMOS Input Logic Level 4KV ESD Rating EMI Free Circuit SOT23-5 or SOT23-6 Package „ Green Package (RoHS) Available Applications „ „ „ „ „ „ „ Cellular and Smart Phones Hot Swap Supplies Microprocessors and DSP Core Supplies PDAs MP3 Players Digital Still and Video Cameras Portable Instruments Typical Application Circuit VIN CIN 1µF VIN OUT VOUT COUT 0.1µF YB1900C EN OFF ON GND Figure 1: Typical Application Circuit YB1900C Rev.1.4 www.yobon.com.tw 1 Ultra Low Quiescent Current Smart Load S...