LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM78XX / LM78XXA Rev. 1.3.1 3
Electrical Characteristics (LM7805)
Refer to the test circuit, -40°C < T J < 125°C, I O = 500 mA, V I = 10 V, CI = 0.1 μF, unless otherwise specified.
Notes:
2. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects
must be taken into account separately. Pulse testing with low duty is used.
3. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions Min. Typ. Max. Unit
VO Output Voltage
TJ = +25°C 4.80 5.00 5.20
VI O = 5 mA to 1 A, PO ≤ 15 W,
VI = 7 V to 20 V 4.75 5.00 5.25
Regline Line Regulation (2) TJ = +25°C VI = 7 V to 25 V 4.0 100.0 mV
VI = 8 V to 12 V 1.6 50.0
Regload Load Regulation (2) TJ = +25°C I O = 5 mA to 1.5 A 9.0 100.0 mV
I O = 250 mA to 750 mA 4.0 50.0
I Q Quiescent Current TJ = +25°C 5 8 mA
ΔI Q
Quiescent Current
Change
I O = 5 mA to 1 A 0.03 0.50 mA
VI = 7 V to 25 V 0.30 1.30
ΔVO /ΔT Output Voltage Drift (3) I O = 5 mA -0.8 mV/°C
VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 42 μV
RR Ripple Rejection (3) f = 120 Hz, VI = 8 V to 18 V 62 73 dB
VDROP Dropout Voltage TJ = +25°C, IO = 1 A 2 V
RO Output Resistance (3) f = 1 kHz 15 mΩ
I SC Short-Circuit Current TJ = +25°C, VI = 35 V 230 mA
I PK Peak Current (3) TJ = +25°C 2.2 A
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM78XX / LM78XXA Rev. 1.3.1 3
Electrical Characteristics (LM7805)
Refer to the test circuit, -40°C < T J < 125°C, I O = 500 mA, V I = 10 V, CI = 0.1 μF, unless otherwise specified.
Notes:
2. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects
must be taken into account separately. Pulse testing with low duty is used.
3. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions Min. Typ. Max. Unit
VO Output Voltage
TJ = +25°C 4.80 5.00 5.20
VI O = 5 mA to 1 A, PO ≤ 15 W,
VI = 7 V to 20 V 4.75 5.00 5.25
Regline Line Regulation (2) TJ = +25°C VI = 7 V to 25 V 4.0 100.0 mV
VI = 8 V to 12 V 1.6 50.0
Regload Load Regulation (2) TJ = +25°C I O = 5 mA to 1.5 A 9.0 100.0 mV
I O = 250 mA to 750 mA 4.0 50.0
I Q Quiescent Current TJ = +25°C 5 8 mA
ΔI Q
Quiescent Current
Change
I O = 5 mA to 1 A 0.03 0.50 mA
VI = 7 V to 25 V 0.30 1.30
ΔVO /ΔT Output Voltage Drift (3) I O = 5 mA -0.8 mV/°C
VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 42 μV
RR Ripple Rejection (3) f = 120 Hz, VI = 8 V to 18 V 62 73 dB
VDROP Dropout Voltage TJ = +25°C, IO = 1 A 2 V
RO Output Resistance (3) f = 1 kHz 15 mΩ
I SC Short-Circuit Current TJ = +25°C, VI = 35 V 230 mA
I PK Peak Current (3) TJ = +25°C 2.2 A
LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM78XX / LM78XXA Rev. 1.3.1 4
Electrical Characteristics (LM7806)
Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 11 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise spec-
ified.
Notes:
4. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
5. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions Min. Typ. Max. Unit
VO Output Voltage
TJ = +25°C 5.75 6.00 6.25
VI O = 5 mA to 1 A, PO ≤ 15 W,
VI = 8.0 V to 21 V 5.70 6.00 6.30
Regline Line Regulation (4) TJ = +25°C VI = 8 V to 25 V 5.0 120.0 mV
VI = 9 V to 13 V 1.5 60.0
Regload Load Regulation (4) TJ = +25°C I O = 5 mA to 1.5 A 9.0 120.0 mV
I O = 250 mA to 750 mA 3.0 60.0
I Q Quiescent Current TJ = +25°C 5 8 mA
ΔI Q
Quiescent Current
Change
I O = 5 mA to 1 A 0.5 mA
VI = 8 V to 25 V 1.3
ΔVO /ΔT Output Voltage Drift (5) I O = 5 mA -0.8 mV/°C
VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 45 μV
RR Ripple Rejection (5) f = 120 Hz, VI = 8 V to 18 V 62 73 dB
VDROP Dropout Voltage TJ = +25°C, IO = 1 A 2 V
RO Output Resistance (5) f = 1 kHz 19 mΩ
I SC Short-Circuit Current TJ = +25°C, VI = 35 V 250 mA
I PK Peak Current (5) TJ = +25°C 2.2 A
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM78XX / LM78XXA Rev. 1.3.1 4
Electrical Characteristics (LM7806)
Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 11 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise spec-
ified.
Notes:
4. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
5. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions Min. Typ. Max. Unit
VO Output Voltage
TJ = +25°C 5.75 6.00 6.25
VI O = 5 mA to 1 A, PO ≤ 15 W,
VI = 8.0 V to 21 V 5.70 6.00 6.30
Regline Line Regulation (4) TJ = +25°C VI = 8 V to 25 V 5.0 120.0 mV
VI = 9 V to 13 V 1.5 60.0
Regload Load Regulation (4) TJ = +25°C I O = 5 mA to 1.5 A 9.0 120.0 mV
I O = 250 mA to 750 mA 3.0 60.0
I Q Quiescent Current TJ = +25°C 5 8 mA
ΔI Q
Quiescent Current
Change
I O = 5 mA to 1 A 0.5 mA
VI = 8 V to 25 V 1.3
ΔVO /ΔT Output Voltage Drift (5) I O = 5 mA -0.8 mV/°C
VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 45 μV
RR Ripple Rejection (5) f = 120 Hz, VI = 8 V to 18 V 62 73 dB
VDROP Dropout Voltage TJ = +25°C, IO = 1 A 2 V
RO Output Resistance (5) f = 1 kHz 19 mΩ
I SC Short-Circuit Current TJ = +25°C, VI = 35 V 250 mA
I PK Peak Current (5) TJ = +25°C 2.2 A
LM78XX / LM78XXA — 3-Terminal 1 A Positive Voltage Regulator
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM78XX / LM78XXA Rev. 1.3.1 5
Electrical Characteristics (LM7808)
Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 14 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise spec-
ified.
Notes:
6. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
7. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions Min. Typ. Max. Unit
VO Output Voltage
TJ = +25°C 7.7 8.0 8.3
VI O = 5 mA to 1 A, PO ≤ 15 W,
VI = 10.5 V to 23 V 7.6 8.0 8.4
Regline Line Regulation (6) TJ = +25°C VI = 10.5 V to 25 V 5 160 mV
VI = 11.5 V to 17 V 2 80
Regload Load Regulation (6) TJ = +25°C I O = 5 mA to 1.5 A 10 160 mV
I O = 250 mA to 750 mA 5 80
I Q Quiescent Current TJ = +25°C 5 8 mA
ΔI Q
Quiescent Current
Change
I O = 5 mA to 1 A 0.05 0.50 mA
VI = 10.5 V to 25 V 0.5 1.0
ΔVO /ΔT Output Voltage Drift (7) I O = 5 mA -0.8 mV/°C
VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 52 μV
RR Ripple Rejection (7) f = 120 Hz, VI = 11.5 V to 21.5 V 56 73 dB
VDROP Dropout Voltage IO = 1 A, TJ = +25°C 2 V
RO Output Resistance (7) f = 1 kHz 17 mΩ
I SC Short-Circuit Current V I = 35 V, TJ = +25°C 230 mA
I PK Peak Current (7) TJ = +25°C 2.2 A
© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
LM78XX / LM78XXA Rev. 1.3.1 5
Electrical Characteristics (LM7808)
Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 14 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise spec-
ified.
Notes:
6. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
7. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions Min. Typ. Max. Unit
VO Output Voltage
TJ = +25°C 7.7 8.0 8.3
VI O = 5 mA to 1 A, PO ≤ 15 W,
VI = 10.5 V to 23 V 7.6 8.0 8.4
Regline Line Regulation (6) TJ = +25°C VI = 10.5 V to 25 V 5 160 mV
VI = 11.5 V to 17 V 2 80
Regload Load Regulation (6) TJ = +25°C I O = 5 mA to 1.5 A 10 160 mV
I O = 250 mA to 750 mA 5 80
I Q Quiescent Current TJ = +25°C 5 8 mA
ΔI Q
Quiescent Current
Change
I O = 5 mA to 1 A 0.05 0.50 mA
VI = 10.5 V to 25 V 0.5 1.0
ΔVO /ΔT Output Voltage Drift (7) I O = 5 mA -0.8 mV/°C
VN Output Noise Voltage f = 10 Hz to 100 kHz, TA = +25°C 52 μV
RR Ripple Rejection (7) f = 120 Hz, VI = 11.5 V to 21.5 V 56 73 dB
VDROP Dropout Voltage IO = 1 A, TJ = +25°C 2 V
RO Output Resistance (7) f = 1 kHz 17 mΩ
I SC Short-Circuit Current V I = 35 V, TJ = +25°C 230 mA
I PK Peak Current (7) TJ = +25°C 2.2 A