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LT338A bảng dữ liệu(PDF) 3 Page - Linear Technology

tên linh kiện LT338A
Giải thích chi tiết về linh kiện  5A Positive Adjustable Voltage Regulator
PDF  14 Pages
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nhà sản xuất  LINER [Linear Technology]
Trang chủ  http://www.linear.com
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LT338A bảng dữ liệu(HTML) 3 Page - Linear Technology

  LT338A Datasheet HTML 1Page - Linear Technology LT338A Datasheet HTML 2Page - Linear Technology LT338A Datasheet HTML 3Page - Linear Technology LT338A Datasheet HTML 4Page - Linear Technology LT338A Datasheet HTML 5Page - Linear Technology LT338A Datasheet HTML 6Page - Linear Technology LT338A Datasheet HTML 7Page - Linear Technology LT338A Datasheet HTML 8Page - Linear Technology LT338A Datasheet HTML 9Page - Linear Technology Next Button
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LT138A/LT338A
LM138/LM338
3
138afd
For more information www.linear.com/LT138A
elecTrical characTerisTics
SYMBOL
PARAMETER
CONDITIONS
MIN
LT138A
TYP
MAX
MIN
LM138
TYP
MAX UNITS
VREF
Reference Voltage
IOUT = 10mA, TJ = 25°C
1.238
1.250
1.262
V
3V ≤ (VIN – VOUT) ≤ 35V,
10mA ≤ IOUT ≤ 5A, P ≤ 50W
l
1.225
1.250
1.270
1.119
1.24
1.29
V
ΔVOUT
ΔVIN
Line Regulation
3V ≤ (VIN – VOUT) ≤ 35V, (Note 3)
l
0.005
0.02
0.01
0.04
0.005
0.02
0.01
0.04
%/V
%/V
ΔVOUT
ΔVOUT
Load Regulation
10mA ≤ IOUT ≤ 5A, (Note 3)
VOUT ≤ 5V
VOUT ≥ 5V
5
0.1
15
0.3
5
0.1
15
0.3
mV
%
VOUT ≤ 5V
VOUT ≥ 5V
l
l
20
0.3
30
0.6
20
0.3
30
0.6
mV
%
Thermal Regulation
20ms Pulse
0.002
0.01
0.002
0.01
%/W
Ripple Rejection
VOUT = 10V, f = 120Hz
CADJ = 0µF
CADJ = 10µF
l
l
60
60
75
60
60
75
dB
dB
IADJ
Adjust Pin Current
l
45
100
45
100
µA
ΔIADJ
Adjust Pin Current Change
10mA ≤ IOUT ≤ 5A,
3V ≤ (VIN – VOUT) ≤ 35V
l
0.2
5
0.2
5
µA
Minimum Load Current
(VIN – VOUT) = 35V
l
3.5
5
3.5
5
mA
ISC
Current Limit
(VIN – VOUT) ≤ 10V
DC
0.5ms Peak
l
l
5
6
8
12
5
6
8
12
A
A
(VIN – VOUT) = 30V, TJ = 25ºC
1
2
1
A
ΔVOUT
ΔTemp
Temperature Stability
l
1
2
1
%
ΔVOUT
ΔTime
Long-Term Stability
TA = 125ºC, 1000 Hours
0.3
1
0.3
1
%
en
RMS Output Noise (% of VOUT) 10HZ ≤ f ≤ 10kHz
0.001
0.003
%
θJC
Thermal Resistance
Junction-to-Case
K Package
1
1
ºC/W
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
SYMBOL
PARAMETER
CONDITIONS
MIN
LT138A
TYP
MAX
MIN
LM138
TYP
MAX
UNITS
VREF
Reference Voltage
IOUT = 10mA
1.238
1.250
1.262
V
3V ≤ (VIN – VOUT) ≤ 35V,
10mA ≤ IOUT ≤ 5A, P ≤ 50W
l
1.225
1.250
1.270
1.19
1.24
1.29
V
ΔVOUT
ΔVIN
Line Regulation
3V ≤ (VIN – VOUT) ≤ 35V, (Note 3)
l
0.005
0.02
0.01
0.04
0.005
0.02
0.03
0.06
%/V
%/V
ΔVOUT
ΔVOUT
Load Regulation
10mA ≤ IOUT ≤ 5A, (Note 3)
VOUT ≤ 5V
VOUT ≥ 5V
5
0.1
15
0.3
5
0.1
25
0.5
mV
%
VOUT ≤ 5V
VOUT ≥ 5V
l
l
20
0.3
30
0.6
20
0.3
50
1
mV
%
Thermal Regulation
20ms Pulse
0.002
0.02
0.002
0.02
%/W



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