MC78XX/LM78XX/MC78XXA Electrical Characteristics(MC7812A) (Refer to the test circuits.C<TJ<125C.lo=1A,VI=19V,C=0.33uFC=0.1uF,unless otherwise specified) Parameter Symbol Conditions Min.Typ.Max.Unit TJ=+25℃ 11.751212.25 Output Voltage 0 11.5 12 125 120 Line Requlation (Note1) Regline Vi=16V to 22V 4 120 mV TJ=+25℃ V=14.5Vto27元 10 120 V=16V to 22V 360 TJ =+25'C 12 100 Load Regulation(Note1) lo=5mA to 1.5A Regload lo=5mA to 1.0A 12100 10=250mAto750mA 50 Quiescent Current la TJ=+25'C 51 mA VI=15V to 30V,TJ=+25'C 0.8 Quiescent Current Change o VI=14V to 27V,lo 500mA 08 lo =5mA to 1.0A 0.5 Output Voltage Drift AVIAT lo=5mA -1.0 mvi'c Output Noise Voltage N f=10Hz to 100KHz 10 uVNo TA=+25 C Ripple Rejection RR 60 Dropout Voltage VDron 1o=1A.TJ=+25C 2.0 Output Resistance ro f=1KHz 18 mo Short Circuit Curren Isc M=35V,TA=+25C mA Peak Current IPK TJ=+25 C heregbiarteseeaaSamdmteperecnanrgsnvodeoheangecia 5 MC78XX/LM78XX/MC78XXA 16 Electrical Characteristics (MC7812A) (Refer to the test circuits. 0°C < TJ < 125°C, Io =1A, V I = 19V, C I=0.33µF, C O=0.1µF, unless otherwise specified) Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage VO TJ =+25 ° C 11.75 12 12.25 IO = 5mA to 1A, PO ≤15W V VI = 14.8V to 27V 11.5 12 12.5 Line Regulation (Note1) Regline VI= 14.8V to 30V IO = 500mA - 10 120 VI= 16V to 22V - 4 120 mV TJ =+25 ° C VI= 14.5V to 27V - 10 120 VI= 16V to 22V - 3 60 Load Regulation (Note1) Regload TJ =+25 ° C IO = 5mA to 1.5A - 12 100 mV IO = 5mA to 1.0A - 12 100 IO = 250mA to 750mA - 5 50 Quiescent Current IQ TJ =+25° C - 5.1 6.0 mA Quiescent Current Change ∆IQ VI = 15V to 30V, TJ=+25 ° C - 0.8 VI = 14V to 27V, IO = 500mA - 0.8 mA IO = 5mA to 1.0A - 0.5 Output Voltage Drift ∆V/∆T IO = 5mA - -1.0 - mV/° C Output Noise Voltage VN f = 10Hz to 100KHz TA =+25° C - 10 - µV/Vo Ripple Rejection RR f = 120Hz, IO = 500mA VI = 14V to 24V - 60 - dB Dropout Voltage VDrop IO = 1A, TJ =+25° C - 2.0 - V Output Resistance rO f = 1KHz - 18 - mΩ Short Circuit Current ISC VI= 35V, TA =+25 ° C - 250 - mA Peak Current IPK TJ=+25 ° C - 2.2 - A