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78TXX Datasheet(PDF) 4 Page - Unisonic Technologies |
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78TXX Datasheet(HTML) 4 Page - Unisonic Technologies |
4 / 7 page 78TXX LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 4 of 7 www.unisonic.com.tw QW-R101-021,B ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified. ) PARAMETER SYMBOL RATINGS UNIT VOUT=4.7~18V 35 V Input Voltage VOUT=20~24V VIN 40 V Output Current IOUT 0.5 A Power Dissipation PD Internally Limited W Operating Junction Temperature TJ 0~+125 °C Storage Temperature TSTG -65 ~ +150 °C Note:1. Absolute maximum ratings are stress ratings only and functional device operation is not implied. The device could be damaged beyond Absolute maximum ratings. 2. The maximum steady state usable output current are dependent on input voltage, heat sinking, lead length of the package and copper pattern of PCB. The data are showed as electrical characteristics table represents pulse test conditions with junction temperatures specified at the initiation of test. ELECTRICAL CHARACTERISTICS(T J=25°C,CI =0.33uF,CO =0.1uF,PD≦7W,unless otherwise specified) For 78T47 (VIN=9.7V, IOUT=0.5A) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT IOUT=5mA~0.5A 4.512 4.7 4.888 V Output Voltage VOUT VIN =7.2~19.7V, IOUT=5mA~0.5A 4.465 4.935 V IOUT=5mA~0.5A 47 mV Load Regulation ΔV OUT IOUT=5mA~200mA 24 mV VIN=7.2~19.7V 47 mV Line Regulation ΔV OUT VIN=7.2~19.7V, IOUT=0.5A 47 mV Quiescent Current IQ IOUT=0.5A 8 mA VIN=7.2~19.7V 1 mA Quiescent Current Change ΔI Q IOUT=5mA~0.5A 0.5 mA Output Noise Voltage eN 10Hz≦f≦100kHz 40 μV Temperature coefficient of VOUT ΔV OUT/ΔTIOUT=5mA -0.6 mV/ °C Ripple Rejection RR VIN=7.7~17.7V, f=120Hz 62 80 dB Peak Output Current IPEAK 1.8 A Short-Circuit Current ISC VIN=35V 250 mA Dropout Voltage VD 2 V For 78T05 (VIN=10V, IOUT=0.5A) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT IOUT=5mA~0.5A 4.8 5 5.2 V Output Voltage VOUT VIN =7.5~20V,IOUT=5mA~0.5A 4.75 5.25 V IOUT=5mA~0.5A 100 mV Load Regulation ΔV OUT IOUT=5mA~200 mA 50 mV VIN =7V~25V 100 mV Line Regulation ΔV OUT VIN =7.5~20V, IOUT=0.5A 50 mV Quiescent Current IQ IOUT=0.5A 8 mA VUT =7.5~20V 1 mA Quiescent Current Change ΔI Q IOUT=5mA~0.5A 0.5 mA Output Noise Voltage eN 10Hz≦f≦100kHz 40 uV Temperature coefficient of VOUT ΔV OUT/ΔTIOUT=5mA -0.6 mV/ °C Ripple Rejection RR VIN =8~18V,f=120Hz 62 80 dB Peak Output Current IPEAK 1.2 A Short-Circuit Current ISC VIN=35V 250 mA Dropout Voltage VD 2 V |
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