YB1421 Datasheet | YuCan

FEATURES : z VIN Operation Range: 0.65V to 6.0V z 600m V Feedback Voltage z Output Current 1.4A@VIN≧3.0V z Up to 90% Efficiency z Low Start-Up Voltage: 0.9V@Io=1m A z Low Hold Voltage: 0.75V@Io=1m A z 1.0MHz Fixed Switching Frequency z PWM/PFM Auto Switching Maintains High Efficiency z Over-Thermal and Over-Current Protection z Low Shutdown Current: <1.0μA z -40°C to +85°C Temperature Range - APPLICATIONS： z Solar Battery Charger z White LED Torch z Backup Battery Charger z Boost Application - TYPICAL APPLICATION CIRCUITS MARK SOT23-5 .szyucan. TEL:0755-27933516 FAX:0755-27944650 High Efficiency 1MHz, 1.5A Boost Regulator YB1421 Series PIN NUMBER SOT23-5 1 2 4 5 PIN NAME FUNCTION SW GND CE VOUT Switch Pin. Connect inductor between SW and VIN Signal and Power Ground Feedback Input Chip Enable. High Active Chip Supply Voltage - BLOCK DIAGRAM - ABSOLUTE MAXIMUM RATINGS PARAMETER Voltage Output CE,SW,FB,VOUT Voltage Peak SW Sink and Source Current Power Dissipation SOT-23-5 Operating Temperature Junction Temperature Storage Temperature Soldering Temperature & Time (Unless otherwise specified, Ta=25°C) SYMBOL VOUT ISWMAX...