X78XX LINEAR INTEGRATED CIRCUIT 3 TERMINAL 1.5A POSITIVE VOLTAGE REGULATORS DESCRIPTION The X7805 series of three-terminal positive regulators are available in TO-220 package and with several fixed output voltage, making them useful in a wide range of application. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided ,they can deliver over 1.5A output current, Although designed as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. 1 TO-220 1:INPUT; 2:GND; 3:OUTPUT FEATURES *Output current up to 1.5A *5V;6V;8V;9V;10V;12V;15V;18V;24V output voltage available *Thermal overload protection *Short circuit protection *Output transistor SOA protection BLOCK DIAGRAM 1 Input 3 Output 2 GND ABSOLUTE MAXIMUM RATINGS(Ta=25°C) Characteristic Input voltage (for Vo=5V to 18V) (forVo=24V) Thermal resistance junction-air Thermal resistance junction-cases Operating Temperature Storage Temperature Symbol Value Unit Vi 35 40 65 5 0~ +125 -65 ~ +150 V V °C/W °C/W °C °C Rθ JA RθJC Topr Tstg X78XX 2009.10.11 V1.1 1 X78XX LINEAR INTEGRATED CIRCUIT X7805 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=10V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 4.8 5.0 5.2 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=7.5V to 20V Tj=25°C,Vi=7.5V to 25V Tj=25°C,Vi=8V to 12V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=8V to 25V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=8V to 18V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C 4.75 62 5.00 4.0 1.6 9 4 5.0 0.03 0.3 -0.8 42 73 2 15 230 2.2 5.25 100 50 100 50 8 0.5 0.8 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A X7806 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=11V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 5.75 6.00 6.25 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=8.5V to 21V Tj=25°C,Vi=8.5V to 25V Tj=25°C,Vi=9V to 13V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=9V to 25V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=9V to 19V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C X78XX 5.7 59 6.0 5 1.5 9 3 5.0 -0.8 45 75 2 19 250 2.2 6.3 120 60 130 60 8 0.5 0.8 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A 2009.10.11 V1.1 2 X78XX LINEAR INTEGRATED CIRCUIT X7808 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=14V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 7.7 8.0 8.3 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=11V to 23V Tj=25°C,Vi=10.5V to 25V Tj=25°C,Vi=11V to 17V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=11V to 25V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=11.5V to 21.5V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C 7.6 56 8.0 5.0 2.0 10 5.0 5.0 0.05 0.5 -0.8 52 73 2 17 230 2.2 8.4 160 80 160 80 8 0.5 1.0 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A X7809 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=15V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 8.65 9.00 9.35 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=11.5V to 24V Tj=25°C,Vi=11.5V to 25V Tj=25°C,Vi=12V to 25V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=12V to 26V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=13V to 23V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C X78XX 8.6 56 9.0 6 2 12 4 5.0 -1 58 71 2 15 250 2.2 9.4 180 90 180 90 8 0.5 0.8 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A 2009.10.11 V1.1 3 X78XX LINEAR INTEGRATED CIRCUIT X7810 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=16V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 9.6 10 10.4 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=12.5V to 25V Tj=25°C,Vi=12.5V to 25V Tj=25°C,Vi=13V to 20V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=13V to 29V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=14V to 24V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C 9.5 56 10 10 3 12 4 5.0 10.5 200 100 200 100 8 0.5 0.8 -1 58 71 2 17 250 2.2 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A X7812 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=16V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 11.5 12.0 12.5 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=14.5V to 27V Tj=25°C,Vi=14.5V to 30V Tj=25°C,Vi=16V to 22V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=15V to 30V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=15V to 25V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C X78XX 11.4 55 12 10 3 11 5.0 5.1 -1 76 71 2 18 230 2.2 12.6 240 120 240 120 8 0.5 0.8 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A 2009.10.11 V1.1 4 X78XX LINEAR INTEGRATED CIRCUIT X7815 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=23V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 14.4 15.0 15.6 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=17.5V to 30V Tj=25°C,Vi=17.5V to 30V Tj=25°C,Vi=20V to 26V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=18V to 305V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=18.5V to 28.5V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C 14.25 54 15 11 3 12 4 5.2 15.75 300 150 300 150 8 0.5 0.8 -1 90 70 2 19 250 2.2 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A X7818 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=23V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 17.3 18.0 18.7 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current ∆Vo/∆T VN RR Vo Ro Isc Ipk 5.0mA<Io<1.0A,Po<15W Vi=21V to 33V Tj=25°C,Vi=21V to 33V Tj=25°C,Vi=24V to 30V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=21V to 32V Io=5mA f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=22V to 32V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C X78XX 17.1 53 18 15 5 15 5.0 5.2 -1 110 69 2 22 250 2.2 18.9 360 180 360 180 8 0.5 0.8 V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A 2009.10.11 V1.1 5 X78XX LINEAR INTEGRATED CIRCUIT X7824 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<Tj<125°C,Io=500mA,Vi=33V,Ci=0.33µF, Co=0.1µF, unless otherwise specified) Characteristic Symbol Test Conditions Min Typ Max Units 23 24 25 V Tj=25°C Output voltage Vo Line regulation ∆Vo Load regulation ∆Vo Quiescent current Quiescent current change IQ ∆IQ ∆Vo/∆T VN RR Vo Ro Isc Ipk Output voltage drift Output noise voltage Ripple rejection Dropout voltage Output resistance Short circuit current peak current 5.0mA<Io<1.0A,Po<15W Vi=27V to 38V Tj=25°C,Vi=27V to 38V Tj=25°C,Vi=30V to 36V Tj=25°C,Io=5.0mA to 1.5A Tj=25°C,Io=250mA to 750mA Tj=25°C Io=5mA to 1.0A Vi=27V to 38V Io=5mA 24 17 6 15 5.0 5.2 22.8 f=10Hz to 100kHz,Ta=25°C f=120Hz, Vi=28V to 38V Io=1.0A,Tj=25°C f=1kHz Vi=35V,Ta=25°C Tj=25°C V mV mV mV mV mA mA mA mV/°C µV dB V mΩ mA A 25.2 480 240 480 240 8 0.5 0.8 -1.5 160 67 2 28 230 2.2 50 TEST CIRCUITS Vi 1 X78XX 2 C1 0.33µF Vi Vo 3 1 X78XX 2 C0 0.1µF Vo 3 RL 270pF 0.33µF TIP31 100Ω FIG.1 DC PARAMETERS Vi 5.1Ω 470µF 1 30µs FIG.2 LOAD REGULATION X78XX 0.33µF 2 3 Vo RL 120Hz FIG.3 RIPPLE REJECTION X78XX 2009.10.11 V1.1 6 X78XX LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUITS Vi 1 C1 0.33µF Vi Vo 3 X78XX C0 0.1µF 2 1 X78XX 2 0.33µF IQ Fig.4 Fixed output regulator 1 Vo Vxx 2 0.33µF IQ Vxx +IQ R1 Io RL Fig.5 Constant current regulator 3 X78XX Vxx R1 0.1µF Io= Vi Vo 3 0.1µF Vi 1 X7805 Vo 3 2 R1 0.33µF 0.1µF UTC741 10kΩ R2 IR1>=5*IQ Vo=Vxx*(1+R2/R1)+ QI *R2 Fig.6 Circuit for increasing Regulator output voltage Fig.7 Adjustable output Vi Vi Q1 BD536 1 3 X78XX IREG Q1 BD536 R1 30Ω IQ1 R1 30Ω Rsc 1 Q2 TIP42 Vo Vo 3 2 0.1µF 0.33µF IO 2 X78XX 0.1µF 0.33µF Rsc=VBEQ2/ Isc Io=IREG*(IREG-VBEQ1/R1) R1=VBEQ1/IREQ-IQ1*Q1 Fig.8 High current with voltage regulator Vi 0.33µF 1 X78XX 2 Fig.9 High output curent short circuit protection Vo 3 20V 1 X7815 4.7kΩ 0.1µF GND 0.1µF 0.33µF 2.2µF -Vin +15V 2 GND X741 3 4.7kΩ -Vo -20V TIP42 Fig.10 Tracking voltage regulator 2 1 X7915 1N4001 1µF 1N4001 3 -15V Fig.11 Split power supply(±15V,1A) X78XX 2009.10.11 V1.1 7 X78XX LINEAR INTEGRATED CIRCUIT Vi Vo 2 1 Vo 4.7Ω 470Ω 0.1µF X78XX 1mH D45H11 1 3 10µF 3 X78XX Z1 2 2000µF 0.5Ω Fig.12 Negative output voltage ciruit Fig.13 switching regulator TYPICAL PERFORMANCE CHARACTERISTICS Fig.14 Quiescent current Fig.15 Output voltage 1.01 6.00 Quiescent current (mA) Normailized output voltage (V) Vi=10V Vo=5V Io=5mA 5.75 5.50 5.25 5.00 4.75 Vi-Vo=5V Io=5mA 1.00 0.99 0.98 -50 -25 0 25 50 75 100 ℃ 125 -50 Junction temperature ( ) -25 0 75 ℃ 100 125 ℃ Tj=25 Vo=5V Io=10mA 6.5 Quiescent current (mA) Output current (A) 7 Tj=25℃ △Vo=100mV 2.5 50 Fig.17 Quiescent current Fig.16 Peak output current 3.0 25 Junction temperature ( ) 2.0 1.5 1.0 0.5 6. 5.5 5 4.5 4 0 0 5 10 15 20 25 30 35 0 input-output differential (V) 5 10 15 20 25 30 35 Input voltage ?(V) X78XX 2009.10.11 V1.1 8 X78XX LINEAR INTEGRATED CIRCUIT PACKAGE OUTLINE TO-220 UNIT: mm X78XX 2009.10.11 V1.1 9 X78XX LINEAR INTEGRATED CIRCUIT Attach Revision History Data 2009.10.11 REV Description 1.0 Original 1.1 ” Revise” 3–Dimention Outline ” X78XX 10 Add” Packge Outline TO-220” Page 10 2009.10.11 V1.1