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Bay Linear
Inspire the Linear Power
1.5A Positive Voltage Regulator
LM78XX
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
Packaging Information
TO-263-3 (S)
Bay Linear
123
Top View
1. Input
2. GND
3. Output
Ordering Information
Device
LM7805
LM7806
LM7808
LM7809
LM7810
LM7812
LM7815
LM7818
LM7824
Operating
Voltage
7 to 20
8 to 20
10.5 to 23
11.5 to 24
12.5 to 25
14.5 to 27
17.5 to 30
20.5 to 33
26.5 to 39
Temp.
0 to 125 °C
0 to 125 °C
0 to 125 °C
0 to 125 °C
0 to 125 °C
0 to 125 °C
0 to 125 °C
0 to 125 °C
0 to 125 °C
TO-220 (T)
TO-263 (S)
TO-252 (D)
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
Output Voltage
Line Regulation
Load Regulation
Ripple Rejection
Output Noise Voltage
Dropout Voltage
Quiescent Current
Quiescent Current
Change
Symbol
VO
∆VO
∆VO
RR
VN
VD
∆IQ
Conditions
TJ = 25 °C
VI = 17.5V to 30V TJ = 25 °C
VI = 20V to 26V TJ = 25 °C
IO = 5mA to 1.5A, 25 °C
IO = 250mA to 750mA, 25 °C
VI = 18.5V to 28.5V, f=120Hz
F= 10Hz to 100Hz TJ = 25 °C
TJ = 25 °C
TJ = 25 °C
VI = 17.5V to 30V, TJ = 25 °C
IO = 5mA to 1A, TJ = 25 °C
MIN
14.40
54
TYP
15
12
3
12
4
70
90
2.0
4.3
MAX
15.60
300
150
300
150
8.0
1.0
0.5
UNIT
V
mV
mV
dB
µV
V
mA
mA
Electrical Characteristics (LM7818)
(VI=27V, IO=500mA, 0°C ≤TJ≤125 °C, unless otherwise specified. (Note 1)
Parameter
Output Voltage
Line Regulation
Load Regulation
Ripple Rejection
Output Noise Voltage
Dropout Voltage
Quiescent Current
Quiescent Current
Change
Symbol
VO
∆VO
∆VO
RR
VN
VD
∆IQ
Conditions
TJ = 25 °C
VI = 21V to 33V TJ = 25 °C
VI = 24V to 33V TJ = 25 °C
IO = 5mA to 1.5A, 25 °C
IO = 250mA to 750mA, 25 °C
VI = 22V to 32V, f=120Hz
F= 10Hz to 100Hz TJ = 25 °C
TJ = 25 °C
TJ = 25 °C
VI = 21V to 33V, TJ = 25 °C
IO = 5mA to 1A, TJ = 25 °C
MIN
17.30
53
TYP
18
15
5
12
4
69
110
2.0
4.5
MAX
18.7
360
180
360
180
8.0
1.0
0.5
UNIT
V
mV
mV
dB
µV
V
mA
mA
Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com