MC7805CT

MC78XXCT VISHAY | Alldatasheet

Document overview

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Technical content

Features

• Output current in excess of 1.0 ampere
• No external components required
• Internal thermal overload protection
• Internal short-circuit current limiting
• Output transistor safe-area compensation
• Output voltage offered in 2% tolerance Mechanical Data Case: TO-220 Package Case outline is on the back page. GND Input Output Reference Voltage Starting Circuit Error Amplifier Current Generator SOA Protection Thermal Protection Series Pass Element Internal Block Diagram OutputInput Cin 0.33µF MC78xx Co 0.1µF Standard Application Notes: A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input ripple voltage. xx = these two digits of the part number indicate output voltage. Cin is required if regulator is located an appreciable distance from power supply filter. Co is not needed for stability, however, it does improve transient response. 1 2 3 MC78xxCT TO-220AB Pin Definition 1.Input 2.Ground 3.Output (Heatsink/tab connected to pin 2)

www.vishay.com Document Number 74813 2 29-Nov-01 Vin = 10V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 4.90 5 5.10 V7V ≤ Vin ≤ 20V, 4.85 — 5.155mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 7V ≤ Vin < 25V – 3 100 mV(TJ = 25°C) 8V ≤ Vin < 13V – 15 0 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 15 100 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 55 0 Quiescent Current I q Iout= 0, TJ = 25°C — 4.2 8 mA Quiescent Current Change ∆Iq 7V ≤ Vin ≤ 25V —— 1.3 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 40 — µV Ripple Rejection Ratio RR f = 120Hz 62 78 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 17 — m Ω Output Short Circuit Current I os TJ = 25°C — 750 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 1.1 — mV/°C Maximum Ratings Ratings at 25°C ambient temperature unless otherwise specified. Parameter Symbol Value Unit Input Voltage(1) Vin 30 V Input Voltage(2) Vin 40 V Thermal Resistance(3) R θJC 5 °C/W Operating Junction Temperature Range T J –20 to +150 °C Storage Junction Temperature Range T stg –65 to +150 °C Notes:(1) MC7805 to MC7818 (2) MC7824 (3) Follow the derating curve (fig. 1)

Document Number 74813 www.vishay.com 29-Nov-01 3 Vin = 11V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 5.88 6.0 6.12 V8V ≤ Vin ≤ 21V, 5.83 — 6.175mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 8V ≤ Vin < 25V – 5 120 mV(TJ = 25°C) 9V ≤ Vin < 13V – 1.5 60 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 14 120 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 46 0 Quiescent Current I q Iout= 0, TJ = 25°C — 4.3 8.0 mA Quiescent Current Change ∆Iq 8V ≤ Vin ≤ 25V —— 1.3 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TA =2 5°C — 45 — µV Ripple Rejection Ratio RR f = 120Hz, 9V ≤ Vin ≤ 19V 59 75 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 19 — m Ω Output Short Circuit Current I os TJ = 25°C — 550 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 0.8 — mV/°C Vin = 14V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 7.84 8.0 8.16 V10.5V ≤ Vin ≤ 23V, 7.74 — 8.265mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 10.5V ≤ Vin < 25V – 6 160 mV(TJ = 25°C) 11V ≤ Vin < 15V – 28 0 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 12 160 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 48 0 Quiescent Current I q Iout= 0, TJ = 25°C — 4.3 8.0 mA Quiescent Current Change ∆Iq 10.5V ≤ Vin ≤ 25V —— 1 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 52 — µV Ripple Rejection Ratio RR f = 120Hz 56 72 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 16 — m Ω Output Short Circuit Current I os TJ = 25°C — 450 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 0.8 — mV/°C

www.vishay.com Document Number 74813 4 29-Nov-01 Vin = 15V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 8.82 9 9.18 V11.5V ≤ Vin ≤ 24V, 8.77 — 9.235mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 11.5V ≤ Vin < 27V – 6 160 mV(TJ = 25°C) 12V ≤ Vin < 16V – 28 0 Load Regulation ∆REG load 5mA ≤ Iout< 1.5A – 12 160 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 48 0 Quiescent Current I q Iout= 0, TJ = 25°C — 4.3 8 mA Quiescent Current Change ∆Iq 11.5V ≤ Vin ≤ 27V —— 1 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 52 — µV Ripple Rejection Ratio RR f = 120Hz,12V ≤ Vin ≤ 22V 55 72 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 16 — m Ω Output Short Circuit Current I os TJ = 25°C — 450 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 1 — mV/°C Vin = 16V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 9.8 10 10.2 V12.5V ≤ Vin ≤ 25V, 9.75 — 10.255mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 12.5V ≤ Vin < 28V – 10 240 mV(TJ = 25°C) 13V ≤ Vin < 17V – 3 120 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 12 240 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 4 120 Quiescent Current I q Iout= 0, TJ = 25°C — 4.3 8 mA Quiescent Current Change ∆Iq 12.5V ≤ Vin ≤ 28V —— 1 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 52 — µV Ripple Rejection Ratio RR f = 120Hz, 13V ≤ Vin ≤ 23V 54 72 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 16 — m Ω Output Short Circuit Current I os TJ = 25°C — 450 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 1 — mV/°C

Document Number 74813 www.vishay.com 29-Nov-01 5 Vin = 19V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 11.76 12.0 12.24 V14.5V ≤ Vin ≤ 27V, 11.66 — 12.345mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 14V ≤ Vin < 30V – 10 240 mV(TJ = 25°C) 15V ≤ Vin < 19V – 3 120 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 12 240 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 4 120 Quiescent Current I q Iout= 0, TJ = 25°C — 4.3 8 mA Quiescent Current Change ∆Iq 14.5V ≤ Vin ≤ 30V —— 1 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 75 — µV Ripple Rejection Ratio RR f = 120Hz,15V ≤ Vin ≤ 25V 55 71 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 18 — m Ω Output Short Circuit Current I os TJ = 25°C — 350 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 1 — mV/°C Vin = 23V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 14.7 15.0 15.3 V17.5V ≤ Vin ≤ 30V, 14.55 — 15.455mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 17.5V ≤ Vin < 30V – 11 300 mV(TJ = 25°C) 13V ≤ Vin < 17V – 3 150 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 12 300 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 4 150 Quiescent Current I q Iout= 0, TJ = 25°C — 4.4 8 mA Quiescent Current Change ∆Iq 17.5V ≤ Vin ≤ 30V —— 1 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 90 — µV Ripple Rejection Ratio RR f = 120Hz, 18V ≤ Vin ≤ 28V 54 70 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 19 — m Ω Output Short Circuit Current I os TJ = 25°C — 230 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 1 — mV/°C

www.vishay.com Document Number 74813 6 29-Nov-01 Vin = 27V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 17.64 18.0 18.36 V21V ≤ Vin ≤ 33V, 17.44 — 18.565mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 21V ≤ Vin < 33V – 15 360 mV(TJ = 25°C) 22V ≤ Vin < 26V – 5 180 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 12 360 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 4 180 Quiescent Current I q Iout= 0, TJ = 25°C — 4.5 8 mA Quiescent Current Change ∆Iq 21V ≤ Vin ≤ 33V —— 1 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 110 — mV Ripple Rejection Ratio RR f = 120Hz,21V ≤ Vin ≤ 31V 53 69 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 22 — m Ω Output Short Circuit Current I os TJ = 25°C — 200 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 1 — mV/°C Vin = 33V, Iout = 500mA, 0°C ≤ TJ ≤ 125°C, Cin = 0.33µF, Cout = 0.1µF; unless otherwise noted. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V out TJ = 25°C 23.52 24.0 24.48 V26V ≤ Vin ≤ 38V, 23.32 — 24.685mA ≤ Iout≤ 1.0A, PD ≤ 15W Line Regulation ∆REG line 26V ≤ Vin < 38V – 18 480 mV(TJ = 25°C) 27V ≤ Vin < 32V – 6 240 Load Regulation ∆REG load 10mA ≤ Iout< 1.5A – 12 480 mV(TJ = 25°C) 250mA ≤ Iout< 750mA – 4 240 Quiescent Current I q Iout= 0, TJ = 25°C — 4.6 8 mA Quiescent Current Change ∆Iq 26V ≤ Vin ≤ 38V —— 1 mA 5mA ≤ Iout≤ 1.0A —— 0.5 Output Noise Voltage Vn 10Hz ≤ f≤ 100KHz,TJ=2 5°C — 170 — µV Ripple Rejection Ratio R rej f = 120Hz, 26V ≤ Vin ≤ 36V 50 66 — dB Dropout Voltage V drop Iout= 1.0A, TJ = 25°C — 2 — V Output Resistance R out f = 1KHz — 28 — m Ω Output Short Circuit Current I os TJ = 25°C — 150 — mA Peak Output Current I o peak TJ = 25°C — 1.5 — A Temperature Coefficient of Output Voltage∆Vout/∆TJ Iout= 5mA,0°C ≤TJ ≤ 125°C —– 1.5 — mV/°C

Document Number 74813 www.vishay.com 29-Nov-01 7 Ratings and Characteristic Curves(TA = 25°C unless otherwise noted) 8.0 0 25 50 75 100 125 150 Fig. 1 – Power Dissipation vs. Ambient Temperature (MC78xxCT) Power Dissipation (W) Ambient Temperatue (°C) 4.0 0 0.5 1.0 1.5 2.0 0 25 50 75 100 125 Fig. 2 – Dropout Voltage vs. Junction Temperature VIN -- VOUT, Input - Output Voltage Differential (V) 2.5 0 6.0 12 18 24 30 Fig. 3 – Peak Output Current Io -- Output Current (A) Input -- Output Voltage Differential (V) 0.75 1.50 2.25 3.00 4.0 6.0 8.0 10 12 14 16 18 20 22 24 Fig. 4 –Ripple Rejection Ratio vs. Output Voltage RR -- Ripple Rejection (db) Vo -- Output Voltage (V) 4.0 8.0 12 16 20 24 Fig. 5 – Output Impedance (mΩ ) vs. Output Voltage Vo -- Output Voltage (V) 100 1000 f = 120Hz Io = 20mA ˘Vin = 1.0V (RMS) Io = 500mA Io = 200mA Io = 20mA Io = 0mA Io = 1.0A f = 120Hz Io = 500mA C L = OuF θJC = 5°C/W θJA = 65°C/W TJ (max) = 150°C θHS = 5°C/W θHS = 15°C/W No Heatsink TJ = --40°C TJ = 0°C TJ = 25°C TJ = 125°C Part # / Vin 7805 / 10V 7806 / 11V 7808 / 14V 7812 / 19V 7815 / 23V 7818 / 27V 7824 / 33V --75 --50 --25 0 25 50 100 125 150 175 200 Fig. 6 – Output Voltage vs. Junction Temperature Vo -- Output Voltage (V) TJ -- Junction Temperature (°C) 5.90 6.00 6.10 6.20 5.80 Vin = 10V Vo = 6.0V Io = 20mA

www.vishay.com Document Number 74813 8 29-Nov-01 Ratings and Characteristic Curves(TA = 25°C unless otherwise noted) 02 5 5 0 7 5--75 --50 --25 100 125 IB -- Quiescent Current (mA) TJ -- Junction Temperature (°C) 1.0 2.0 3.0 4.0 5.0 4.02.00 6.0 8.0 10 12 14 16 VO -- Output Voltage (V) VI -- Input Voltage (V) 2.0 4.0 6.0 8.0 Io = 10mA Io = 500mA Vin = 10V Vo = 5.0V Io = 20mA Vin = 10V Vo = 5.0V Io = 5.0mA Io = 1.0A MC78xxC MC7805 T J = 25°C MC78xx Fig. 7 – Quiescent Current vs. Junction Temperature Fig. 8 – Output Voltage vs. Input Voltage

Document Number 74813 www.vishay.com 29-Nov-01 9 13.9 ± 0.41 2.53 ± 0.185 28.7 ± 0.92 3.94 ± 0.375 2.69 ± 0.25 0.8 ± 0.12 1.3 ± 0.185 1.27 ± 0.12 2.55 ± 0.375 4.85 ± 0.375 0.387 ± 0.09 8.54 ± 0.26 6.26 ± 0.25 14.8 ± 0.51 TO-220 Case Outline Dimensions in millimeters