Ordering number : ENA2233 LV5980MD Bi-CMOS IC Low power consumption and highefficiency LV5980MD Specifications Absolute Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Input voltage Vmax 25 V IN Allowable pin voltage V-SW 30 V IN EN VIN V-PDR 6V IN REF 6V SS/HICCUP REF V FB REF V COMP REF V Allowable power dissipation Pd max Specified substrate *1 1.3 W Operating temperature T -40 to +85 C OPR Storage temperature T -55 to +150 C STG *1 Specified substrate: 50.0 mm 50.0 mm 1.6 mm, fiberglass epoxy printed circuit board, 4 layers Caution 1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. *1 Specified substrate : 50.0mm 50.0mm 1.6mm, fiberglass epoxy printed circuit board, 4 layers Recommended Operating Conditions at Ta = 25C Parameter Symbol Conditions Ratings Unit Input voltage range V 4.5 to 23V IN Electrical Characteristics at Ta=25C, VIN=15V Characteristic Symbol Conditions Min. Typ. Max. Units Reference Voltage Internal Reference Voltage V 1.2101.235 1.260V REF V V V IN IN IN Pch Drive Voltage V I =0 ~ -5mA V PDR OUT -5.5 -5.0 -4.5 Saw Wave Oscillator Oscillatory Frequency F 310370 430kHz OSC ON/OFF Circuit V ON IC startup voltage (EN PIN) 2.0 V V CNT IN V OFF Disable voltage (EN PIN) 0.3V CNT Soft Start Circuit Soft Start Source Current I 1.21.8 2.4uA SS SC V = 3V, EN > 2V IN Soft Start Sink Current I 300 uA SS SK V = 0.4V SS UVLO Circuit UVLO Release Voltage V FB = COMP 3.3 3.7 4.1 V UVLON UVLO Lock Voltage V FB = COMP 3.02 3.42 3.82 V UVLOF Error Amplifier Input Bias Current I -100 -10 nA EA IN Error amplifier gain G 100220 380uA/V EA Output Sink Current I FB = 1.75V -30 -17 -8 uA EA OSK Output Source Current I FB = 0.75V 8 17 30 uA ES OSC Over Current Limit Circuit Current Limit Peak I *2 Test circuit 3.54.7 6.2A CL HICCUP Timer Start-up Cycle N 15 cycle CYC HICCUP Comparator Threshold V 0.15 V tHIC Voltage HICCUP Timer Discharge Current I 0.25 uA HIC Continued on next page. No.A2233-2/20