23213 Shantou Huashan Electronic Devices Co.,Ltd. 3-TERMINAL FIXED VOLTAGE REGULATOR H79L12 █ Description H79L12 is the three terminal negative Regulators with single chip, and in a wide range of applications 。It supplies fixed output TO-92 voltages of -12V, deliver over 100mA output current ,and employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. █ Features 1―GND 2―INPUT 3―OUTPUT l Output current up to 100mA l Low noise l High Ripple Rejection l Power Amplify Output Protection l Thermal Overload Protection l Current Overload Protection and Short Circuit Protection █ Absolute Maximum Ratings(Ta=25℃) VIN——Input Voltage……………………………………………………… -35V T amb ——Operating Temperature Range……………………………… -20~85℃ T stg ——Storage Temperature Range………………………………… -55~150℃ T j ——Junction Temperature………………………………………… -55~150℃ █ 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 H79L12 █Typical Application H79L12 █ ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VIN =-19V,IO =40mA,0℃≤Tj ≤125℃,CIN=0.33μF,COUT=0.1μF) Symbol VO Parameter Output Voltage ΔVO Line Regulation ΔVO Load Regulation Min. Typ. Max. -11.5 -12.0 -12.5 -11.4 -12.6 -11.4 -12.6 250 200 100 50 Quiescent Current 6.5 Quiescent 1.5 0.1 VN Current Change Output Noise Voltage RR Ripple Rejection VD Dropout Voltage IQ ΔIQ 37 Unit Conditions Tj =25℃ V -27V ≤ VIN ≤ -14.5V,1mA ≤ IO ≤ 40Ma VIN =-19V,1mA≤IO ≤70mA mV mV mA mA Tj =25℃, -27V≤VIN ≤-14.5V Tj =25℃, -27V≤VIN ≤-16V Tj =25℃,1mA≤IO ≤100mA Tj =25℃,1mA≤IO ≤40mA Tj =25℃ -27V≤VIN ≤-16V 1mA≤IO ≤40mA 80 μV Tj =25℃,10Hz≤f≤100kHz 42 dB Tj =25℃, -25V≤VIN ≤-15V, f=120Hz 1.7 V Tj =25℃