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What is LM338?

This electronic component, produced by the manufacturer "Seme LAB", performs the same function as "5 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR".


LM338 Datasheet PDF - Seme LAB

Part Number LM338
Description 5 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR
Manufacturers Seme LAB 
Logo Seme LAB Logo 


There is a preview and LM338 download ( pdf file ) link at the bottom of this page.





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No Preview Available ! LM338 datasheet, circuit

IP138A SERIES
IP138A SERIES
IP338A SERIES
IP338A SERIES
LM138 SERIES
5 AMP
POSITIVE ADJUSTABLE
!
12
VOLTAGE REGULATOR
3
Pin 1 – ADJ.
Pin 2 – VOUT
Case – VIN
Q Package – TO–254
Pin 1 – ADJ.
Pin 2 – VIN
Case – VOUT
K Package – TO–3
123
FEATURES
• OUTPUT VOLTAGE RANGE OF 1.25 TO 35V
• 1% OUTPUT VOLTAGE TOLERANCE
(–A VERSIONS)
• 0.3% LOAD REGULATION
• 0.01% / V LINE REGULATION
• COMPLETE SERIES OF PROTECTIONS:
• CURRENT LIMITING
• THERMAL SHUTDOWN
• SOA CONTROL
Pin 1 – ADJ.
Pin 2 – VOUT
Pin 3 – VIN
Case – VOUT
V Package – TO–218
Part
Number
IP138A
IP138
LM138
IP338A
IP338
LM338
K–Pack
(TO–3)
Order Information
V–Pack Q-Pack Temp.
(TO–218) (TO-254) Range
-55 to +150°C
0 to 125°C
Note:
To order, add the package identifier
to the part number.
eg. IP138AQ
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
VI–O
Input - Output Differential Voltage
35V
PD Power Dissipation
Internally limited
TJ Operating Junction Temperature Range
See Table Above
TSTG Storage Temperature
–65 to 150°C
TL Lead Temperature (Soldering, 10 sec.)
300°C
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected] Website: http://www.semelab.co.uk
Prelim. 4/96

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LM338 equivalent
IP138A SERIES
IP138A SERIES
IP338A SERIES
IP338A SERIES
LM138 SERIES
TYPICAL PERFORMANCE CHARACTERISTICS
Current Limit
16
TCASE = 25˚C
14
12
PEAK CURRENT LIMIT
DC CURRENT LIMIT
PRELOAD = 0
10
PRELOAD = 5A
8
6
PRELOAD = 1A
4
2
0
0 5 10 15 20 25 30 35 40
Input Output Differential (V)
Current Limit
14
12
10
PRELOAD = 5A
8
PRELOAD = 0
6
4
2
0
0.1
VIN = 10V
VOUT = 5V
TCASE = 25˚C
1
10
Time (ms)
Line Transient Response
1
VOUT =10V
0.5 IOUT = 50mA
TJ = 25˚C
0
-0.5 CADJ = 10 µF
COUT = 1µF
-1
CADJ = 0
COUT = 0
-1.5
1
0.5
0
0
10 20
Time ( µs)
30
40
Current Limit
14
PRELOAD CURRENT= 0
TCASE = 25˚C
12
10
VIN -VOUT = 10V
8
6 VIN -VOUT = 15V
4 VIN -VOUT = 20V
2 VIN -VOUT = 30V
0
100 0 .1
1 10
Time (ms)
100
Load Transient Response
3
2 CADJ = 10 µF
1 CL = 1µF
CAD J = 0
CL = 0
0
-1 VIN = 15V
VOUT =10V
-2 TCASE = 25˚C
-3 PRELOAD = 100mA
6
4
2
0
0
10 20
Time ( µs)
30
40
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected] Website: http://www.semelab.co.uk
Prelim. 4/96


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LM338 5A Adjustable Regulator


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