23213 Shantou Huashan Electronic Devices Co.,Ltd. 3-TERMINAL FIXED VOLTAGE REGULATOR H78L08 █ Description H78L08 is the three terminal positive Regulators with single chip, and in a wide range of applications 。It supplies fixed output TO-92 voltages of 8V, deliver over 100mA output current ,and employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. █ Features 1―OUTPUT 2―GND 3―INPUT Output current up to 100mA Low noise High Ripple Rejection Power Amplify Output Protection Thermal Overload Protection Current Overload Protection and Short Circuit Protection █ Absolute Maximum Ratings（Ta=25℃） VIN——Input Voltage……………………………………………………… 30V PD ——Power of Dissipation ………………………………………… 700mW Tamb——Operating Temperature Range……………………………… -20~85℃ Tstg——Storage Temperature Range………………………………… -55~150℃ Tj——Junction Temperature………………………………………… -55~150℃ Rth——thermal resistance（junction to environment）………………… 180℃/W █ Internal Block Diagram INPUT Series Bypass Element 3 Current Generator Starting Circuit Reference Voltage OUTPUT 1 SOA Protection Error Amplifier Thermal Protection circuit GND 2 23213 Shantou Huashan Electronic Devices Co.,Ltd. 3-TERMINAL FIXED VOLTAGE REGULATOR H78L08 █Typical Application OUTPUT INPUT H78L08 GND █ ELECTRICAL CHARACTERISTICS （Unless otherwise specified, VIN=14V,IO=40mA,0℃≤Tj≤125℃,CIN=0.33μF,COUT=0.1μF） Symbol VO Parameter Output Voltage Min. Typ. Max. 7.70 8.0 8.3 7.70 8.3 7.70 8.3 10 ΔVO ΔVO IQ Unit Tj=25℃ V 125 14 80 Load Regulation 6 40 2.4 5.5 mA mA Current Change VN Output Voltage RR Ripple Rejection VD 0.1 Noise Tj=25℃,1mA≤IO≤40mA Tj=25℃ 12V≤VIN≤23V, IO=40mA 1.5 Quiescent ΔIQ Tj=25℃, 11V≤VIN≤23V Tj=25℃,1mA≤IO≤100mA mV Quiescent Current 40mA Tj=25℃, 10.5V≤VIN≤23V mV 6 10.5V ≤ VIN ≤ 23V,1mA ≤ IO ≤ VIN=14V,1mA≤IO≤70mA 175 Line Regulation Conditions VIN=14V,1mA≤IO≤40mA μV Tj=25℃,10Hz≤f≤100kHz 73 dB Tj=25℃,12V≤VIN≤22V, f=120Hz Dropout Voltage 1.7 V Tj=25℃ ISC Short Circuit Current 80 mA Tj=25℃,VIN=23V IPK Peak Current mA Tj=25℃ ΔVO/ΔT Temperature coefficient of VO 85 51 125 160 0.6 190 205 mV/℃ IO=5mA