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What is LM7805?

This electronic component, produced by the manufacturer "Thinki Semiconductor", performs the same function as "(LM78XX) 3-Terminal 1A Positive Voltage Regulator".


LM7805 Datasheet PDF - Thinki Semiconductor

Part Number LM7805
Description (LM78XX) 3-Terminal 1A Positive Voltage Regulator
Manufacturers Thinki Semiconductor 
Logo Thinki Semiconductor Logo 


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LM78XX
®
LM78XX
Pb Free Plating Product
3-Terminal 1 A Positive Voltage Regulator
Pb
Features
Output Voltage Range 5 to 24V
Output current up to 1A
No external components required
Internal thermal overload protection
Internal short-circuit current limiting
Output transistor safe-area compensation
Output voltage offered in 4% tolerance
TO-220M-1
Unit : (mm)
Standard Application Circuit
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 type number indicate 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.
Absolute Maximum Rating (Ta = 25oC unless otherwise noted)
Parameter
Symbol
Input Voltage
VOUT=5~18V
VOUT=24V
VIN
Output Current
IOUT
Power Dissipation
PD
Operating Junction Temperature
TJ
Storage Temperature Range
TSTG
Thermal Resistance - Junction to Case
TO-220
ITO-220
RӨJC
Thermal Resistance - Junction to Ambient
TO-220
ITO-220
RӨJA
Limit
35
40
Internal Limited
Internal Limited
0~+125
-65~+150
5
5
50
60
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Unit
V
oC
oC
oC/W
oC/W
© 2006 Thinki Semiconductor Co.,Ltd.
Page 1/7
http://www.thinkisemi.com/
Free Datasheet http://www.datasheet4u.com/

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LM7805 equivalent
LM78XX
®
LM7815 Electrical Characteristics
Vin=23V, Iout=500mA, 0oCTj125oC, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
Parameter
Symbol
Test Condition
Min Typ
Tj=25oC
14.42 15
Output voltage
Vout
17.5VVin30V,
10mAIout1A, PD 15W
14.28 15
Line Regulation
REGline Tj=25oC 17.5VVin30V
18VVin22V
-- 12
-- 3
Load Regulation
Quiescent Current
REGload
Iq
Tj=25oC
10mAIout1A
250mAIout750mA
Tj=25oC, Iout=0
--
--
--
12
4
4.3
Quiescent Current Change
Output Noise Voltage
Iq
17.5VVin30V
10mAIout1A
Vn 10Hzf100KHz, Tj=25oC
-- --
-- --
-- 90
Ripple Rejection Ratio
Voltage Drop
RR
Vdrop
f=120Hz, 18VVin28V
Iout=1.0A, Tj=25oC
54 70
-- 2
Output Resistance
Output Short Circuit Current
Peak Output Current
Rout
Ios
Io peak
f=1KHz
Tj=25oC
Tj=25oC
-- 19
-- 230
-- 2.2
Temperature Coefficient of
Output Voltage
Vout/ Tj Iout=10mA, 0oCTj125oC
-- -1
Max
15.60
15.75
Unit
V
300
150
mV
300
150
8
1 mA
0.5
-- µV
-- dB
-- V
-- mΩ
-- mA
-- A
-- mV/ oC
LM7818 Electrical Characteristics
(Vin=24V, Iout=500mA, 0oCTj125oC, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
Parameter
Symbol
Test Condition
Min Typ Max Unit
Tj=25oC
17.30 18 18.72
Output Voltage
Vout
21VVin33V, 10mAIout1A,
PD 15W
17.14
18
18.90
V
Line Regulation
Load Regulation
Quiescent Current
REGline
REGload
Iq
Tj=25oC
21VVin33V
22VVin26V
Tj=25oC 10mAIout1A
250mAIout750mA
Tj=25oC, Iout=0
--
--
--
--
--
15 360
5 180
mV
12 360
4 180
4.5 8
Quiescent Current Change
Output Noise Voltage
Iq
21VVin33V
10mAIout1A
Vn 10Hzf100KHz, Tj=25oC
-- -- 1 mA
-- -- 0.5
-- 110 --
uV
Ripple Rejection Ratio
Voltage Drop
RR
Vdrop
f=120Hz, 21VVin31V
Iout=1.0A, Tj=25oC
54 70 -- dB
-- 2 -- V
Output Resistance
Output Short Circuit Current
Peak Output Current
Rout
Ios
Io peak
f=1KHz
Tj=25oC
Tj=25oC
-- 22 -- mΩ
-- 200 -- mA
-- 2.2 --
A
Temperature Coefficient of
Output Voltage
Vout/ Tj Iout=10mA, 0oCTj125oC
-- -1 -- mV/ oC
Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as
possible, and thermal effects must be taken into account separately.
This specification applies only for DC power dissipation permitted by absolute maximum ratings.
© 2006 Thinki Semiconductor Co.,Ltd.
Page 5/7
http://www.thinkisemi.com/
Free Datasheet http://www.datasheet4u.com/


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LM7805 Pinout


1. Voltage Regulator ( 7805 )

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