Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
1.5A Positive Voltage Regulator
LM78XX
Packaging Information
Ordering Information
Device Operating
Voltage
Temp.
LM7805 7 to 20
0 to 125 °C
LM7806 8 to 20
0 to 125 °C
LM7808 10.5 to 23
0 to 125 °C
LM7809 11.5 to 24
0 to 125 °C
LM7810 12.5 to 25
0 to 125 °C
LM7812 14.5 to 27
0 to 125 °C
LM7815 17.5 to 30
0 to 125 °C
LM7818 20.5 to 33
0 to 125 °C
LM7824 26.5 to 39
0 to 125 °C
Description
The Bay Linear LM78XX is integrated linear positive
regulator with three terminals. The LM78XX offer several
fixed output voltages making them useful in wide range of
applications. When used as a zener diode/resistor combination
replacement, the LM78XX usually results in an effective
output impedance improvement of two orders of magnitude,
lower quiescent current.
The LM78XX is available in the TO-252, TO-220 & TO-263
packages,
Features
• Output Current of 1.5A
• Output Voltage Tolerance of 5%
• Internal thermal overload protection
• Internal Short-Circuit Limited
• No External Component
• Output Voltage 5.0V, 6V, 8V, 9V, 10V,
12V, 15V, 18V, 24V
• Offer in plastic TO-252, TO-220 & TO-263
• Direct Replacement for LM78XX
Applications
• Post regulator for switching DC/DC
converter
• Bias supply for analog circuits
Bay Linear
Inspire the Linear Power
TO-220 (T)
TO-263 (S)
TO-252 (D)
Top View
TO-263-3 (
1
Bay Linear
2
3
Top View
TO-263-3 (S)
1
Bay Linear
2
3
Top View
TO-263-3 (
1
Bay Linear
2
3
Top View
TO-263-3 (S)
1
Bay Linear
2
3
1. Input
2. GND
3. Output
Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
LM78XX
Absolute Maximum Rating
Parameter LM78-- Unit
Input Voltage LM7824, LM7827
All Others
40
35
V
Operating Free-Air, Case, Virtual Junction Temp. 0 to 150
Storage Temperature Range -65 to 150
Lead temperature 1.6 mm from case for sec. 260
°C
Electrical Characteristics (LM7805)
(VI=10V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
4.8 5.0 5.2 V
VI = 7V to 25V TJ = 25 °C
3 100 Line Regulation
∆V
O
VI = 8V to 12V TJ = 25 °C
1 50
mV
IO = 5mA to 1.5A, 25 °C
15 100 Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
5 50
mV
Ripple Rejection RR VI = 8V to 18V, f=120Hz 62 78 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
40
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.2 8 mA
VI = 7V to 25V, TJ = 25 °C
1.3 Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Electrical Characteristics (LM7806)
(VI=11V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
5.75 6.0 6.25 V
VI = 8V to 25V TJ = 25 °C
5 120 Line Regulation
∆V
O
VI = 9V to 25V TJ = 25 °C
1.5 60
mV
IO = 5mA to 1.5A, 25 °C
14 120 Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
4 60
mV
Ripple Rejection RR VI = 9V to 19V, f=120Hz 59 75 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
45
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
T
J
= 25 °C
4.3 8.0 mA
VI = 8V to 25V, TJ = 25 °C
1.3 Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
LM78XX
Electrical Characteristics (LM7808)
(VI=14V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
7.7 8.0 8.3 V
VI = 10.5V to 25V TJ = 25 °C
6 160 Line Regulation
∆V
O
VI = 11V to 17V TJ = 25 °C
2 80
mV
IO = 5mA to 1.5A, 25 °C
12 160 Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
4 80
mV
Ripple Rejection RR VI = 11.5V to 21.5V, f=120Hz 55 72 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
52
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.3 8 mA
VI = 10.5V to 25V, TJ = 25 °C
1 Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Electrical Characteristics (LM7809)
(VI=16V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
8.6 9.0 9.40 V
VI = 11.5V to 27V TJ = 25 °C
7 180 Line Regulation
∆V
O
VI = 13V to 19V TJ = 25 °C
2 90
mV
IO = 5mA to 1.5A, 25 °C
12 180 Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
4 90
mV
Ripple Rejection RR VI = 12V to 19V, f=120Hz 55 70 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
60
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.3 8 mA
VI = 11.5V to 27V, TJ = 25 °C
1.0 Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
LM78XX
Electrical Characteristics (LM7810)
(VI=17V, IO=500mA, 0°C ≤TJ≤125 °C, , unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
9.6 10 10.4 V
VI = 12.5V to 28V TJ = 25 °C
7 200 Line Regulation
∆V
O
VI = 14V to 20V TJ = 25 °C
2 100
mV
IO = 5mA to 1.5A, 25 °C
12 200
Load Regulation
∆V
O
I
O
= 250mA to 750mA, 25 °C
4 100
mV
Ripple Rejection RR VI = 13V to 23V, f=120Hz 55 71 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
70
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.3 8 mA
VI = 12.5V to 28V, TJ = 25 °C
1.0 Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Electrical Characteristics (LM7812)
(VI=19V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
11.50 12 12.5 V
VI = 14.5V to 30V TJ = 25 °C
10 240 Line Regulation
∆V
O
VI = 16V to 22V TJ = 25 °C
3.0 120
mV
IO = 5mA to 1.5A, 25 °C
12 240
Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
4 120
mV
Ripple Rejection RR VI = 15V to 25V, f=120Hz 55 71 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
75
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.3 8.0 mA
VI = 14.5V to 30V, TJ = 25 °C
1.0
Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
LM78XX
Electrical Characteristics (LM7815)
(VI=23V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
14.40 15 15.60 V
VI = 17.5V to 30V TJ = 25 °C
12 300 Line Regulation
∆V
O
VI = 20V to 26V TJ = 25 °C
3 150
mV
IO = 5mA to 1.5A, 25 °C
12 300 Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
4 150
mV
Ripple Rejection RR VI = 18.5V to 28.5V, f=120Hz 54 70 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
90
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.3 8.0 mA
VI = 17.5V to 30V, TJ = 25 °C
1.0 Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Electrical Characteristics (LM7818)
(VI=27V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
17.30 18 18.7 V
VI = 21V to 33V TJ = 25 °C
15 360 Line Regulation
∆V
O
VI = 24V to 33V TJ = 25 °C
5 180
mV
IO = 5mA to 1.5A, 25 °C
12 360 Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
4 180
mV
Ripple Rejection RR VI = 22V to 32V, f=120Hz 53 69 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
110
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.5 8.0 mA
VI = 21V to 33V, TJ = 25 °C
1.0 Quiescent Current
Change
∆I
Q
IO = 5mA to 1A, TJ = 25 °C
0.5
mA
Bay Linear, Inc
2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com
LM78XX
Electrical Characteristics (LM7824)
(VI=33V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter Symbol Conditions MIN TYP MAX UNIT
Output Voltage V
O
TJ = 25 °C
23 24 25 V
VI = 27V to 38V TJ = 25 °C
18 480 Line Regulation
∆V
O
VI = 30V to 36V TJ = 25 °C
6 240
mV
IO = 5mA to 1.5A, 25 °C
12 480 Load Regulation
∆V
O
IO = 250mA to 750mA, 25 °C
4 240
mV
Ripple Rejection RR VI = 28V to 38V, f=120Hz 50 66 dB
Output Noise Voltage V
N
F= 10Hz to 100Hz TJ = 25 °C
170
µV
Dropout Voltage V
D
TJ = 25 °C
2.0 V
Quiescent Current
TJ = 25 °C
4.6 8.0 mA
VI = 27V to 38V, TJ = 25 °C
1.0 Quiescent Current
Change
∆I
Q
IO = 5mA to 1.0A, TJ = 25 °C
0.5
mA
Advance Information- These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations,
computer simulations and/ or initial prototype evaluation.
Preliminary Information- These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are
subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges.
The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit
design or permit any industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any
industrial property right resulting from the use of the contents shown in the data book. Typical parameters can and do vary in different
applications. Customer’s technical experts must validate all operating parameters including “ Typical” for each customer application.
LIFE SUPPORT AND NUCLEAR POLICY
Bay Linear products are not authorized for and should not be used within life support systems which are intended for surgical
implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without
the specific written consent of Bay Linear President.
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