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LM-338K Datasheet(Fiches technique) 2 Page - Linear Technology

Numéro de pièce LM-338K
Description  5A Positive Adjustable Voltage Regulator
Télécharger  12 Pages
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Fabricant  LINER [Linear Technology]
Site Internet  http://www.linear.com
Logo LINER - Linear Technology

LM-338K Datasheet(HTML) 2 Page - Linear Technology

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LT138A/LT338A
LM138/LM338
A
G
A
U
A
R
BSOLUTEXI
TI
S
Power Dissipation .............................. Internally Limited
Input-to-Output Voltage Differential ........................ 35V
Operating Junction Temperature Range
LT138A/LM138 ............................... – 55
°C to 150°C
LT338A/LM338 ................................... 0
°C to 125°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300
°C
PRECONDITIONI G
100% Thermal Limit Burn-In
(Note 1)
LT138A
LM138
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VREF
Reference Voltage
IOUT = 10mA, TJ = 25°C
1.238
1.250
1.262
V
3V
≤ (VIN – VOUT) ≤ 35V,
q
1.225
1.250
1.270
1.19
1.24
1.29
V
10mA
≤ IOUT ≤ 5A, P ≤ 50W
∆VOUT
Line Regulation
3V
≤ (VIN – VOUT) ≤ 35V, (Note 3)
0.005
0.01
0.005
0.01
%/V
∆VIN
q
0.02
0.04
0.02
0.04
%/V
∆VOUT
Load Regulation
10mA
≤ IOUT ≤ 5A, (Note 3)
∆IOUT
VOUT ≤ 5V
5
15
5
15
mV
VOUT ≥ 5V
0.1
0.3
0.1
0.3
%
VOUT ≤ 5V
q
20
30
20
30
mV
VOUT ≥ 5V
q
0.3
0.6
0.3
0.6
%
Thermal Regulation
20ms Pulse
0.002
0.01
0.002
0.01
%/W
Ripple Rejection
VOUT = 10V, f = 120Hz
CADJ = 0µF
q
60
60
dB
CADJ = 10µF
q
60
75
60
75
dB
IADJ
Adjust Pin Current
q
45
100
45
100
µA
∆IADJ
Adjust Pin Current Change
10mA
≤ IOUT ≤ 5A,
q
0.2
5
0.2
5
µA
3V
≤ (VIN – VOUT) ≤ 35V
Minimum Load Current
(VIN – VOUT) = 35V
q
3.5
5
3.5
5
mA
ISC
Current Limit
(VIN – VOUT) ≤ 10V
DC
q
58
58
A
0.5ms Peak
q
612
6
12
A
(VIN – VOUT) = 30V, TJ = 25°C1
2
1
A
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
PACKAGE/ORDER I FOR ATIO
ORDER
PART NUMBER
LT138AK
LT338AK
LM138K
LM338K
TJMAX = 150°C, θJA = 35°C/ W, θJC = 1°C/ W (LT138A/LT138)
TJMAX = 125°C, θJA = 35°C/ W, θJC = 1°C/ W (LT338A/LT338)
Consult factory for Industrial grade parts.
ORDER
PART NUMBER
LM338P
VOUT
VIN
ADJ
3
2
1
FRONT VIEW
P PACKAGE
3-LEAD PLASTIC TO-3P
TJMAX = 125°C, θJA = 45°C/ W
2
1
VIN
CASE
IS OUTPUT
ADJ
K PACKAGE
2-LEAD TO-3 METAL CAN
BOTTOM VIEW


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