3-TERMINAL 1A NEGATIVE VOLTAGE REGULATORS KA7912 H 7912 H 7912 3 ,TO-220 TO-220 1A -12V 1GND 2INPUT 3OUTPUT SA Ta=25 VI----................................................-35V TOPR----................................. 0~125 TSTG----.............................. -65~150 GND R1 R2 Q2 I1 I2 Out Q1 Rsc In 1 H 7912 0TJ125,IO=500mA,VI=18V,CI=2.2F,CO=1F VO -11.5 -12 -12.5 -12 TJ=25 V -11.4 IO=5.OmA to 1.0A, PO15W, -12.6 VI=-15.5V to -27V 12 VO VO IQ IQ 240 * TJ=25,VI=-14.5V to -30V mV 6 120 TJ=25,VI=-16V to -22V 12 240 TJ=25,IO=5.0mA to 1.5A * mV 4 120 3 6 0.05 0.5 0.1 1.0 TJ=25,IO=250mA to 750mA mA TJ=25 IO=5mA to 1.0A mA VI=-15V to -30V -0.8 mV/ VN 200 V TA=25,f=10Hz to 100kHz RR 60 dB f=120Hz, VI=10V VD 2 V TJ=25,IO=1A ISC 300 mA TJ=25,VI=-35V IPK 2.2 A TJ=25 VO/T 54 IO=5mA 2 H 7912 2 -V mV 1 4 V mA 3 A 5 3