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LM138KSTEEL データシート(PDF) 3 Page - Texas Instruments

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部品番号 LM138KSTEEL
部品情報  LM138/LM338 5-Amp Adjustable Regulators
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LM138, LM338
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SNVS771B – MAY 1998 – REVISED APRIL 2013
Electrical Characteristics (continued)
Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating
Temperature Range. Unless otherwise specified, VIN − VOUT = 5V; and IOUT = 10 mA.
(1)
LM138
Symbol
Parameter
Conditions
Units
Min
Typ
Max
θJA
Thermal Resistance, Junction to
NDS Package
35
°C/W
Ambient (No Heat Sink)
Electrical Characteristics
LM338
Symbol
Parameter
Conditions
Units
Min
Typ
Max
VREF
Reference Voltage
3V
≤ (VIN − VOUT) ≤ 35V,
1.19
1.24
1.29
V
10 mA
≤ IOUT ≤ 5A, P ≤ 50W
VRLINE
Line Regulation
3V
≤ (VIN − VOUT) ≤ 35V
(1)
0.005
0.03
%/V
0.02
0.06
%/V
VRLOAD
Load Regulation
10 mA
≤ IOUT ≤ 5A
(1)
0.1
0.5
%
0.3
1
%
Thermal Regulation
20 ms Pulse
0.002
0.02
%/W
IADJ
Adjustment Pin Current
45
100
μA
ΔIADJ
Adjustment Pin Current Change
10 mA
≤ IOUT ≤ 5A,
0.2
5
μA
3V
≤ (VIN − VOUT) ≤ 35V
ΔVR/T
Temperature Stability
TMIN ≤ TJ ≤ TMAX
1
%
ILOAD(Min)
Minimum Load Current
VIN − VOUT = 35V
3.5
10
mA
ICL
Current Limit
VIN − VOUT ≤ 10V
DC
5
8
A
0.5 ms Peak
7
12
A
VIN − VOUT = 30V
1
A
VN
RMS Output Noise, % of VOUT
10 Hz
≤ f ≤ 10 kHz
0.003
%
ΔVR/ΔVIN
Ripple Rejection Ratio
VOUT = 10V, f = 120 Hz, CADJ = 0 μF
60
dB
VOUT = 10V, f = 120 Hz, CADJ = 10 μF
60
75
dB
Long-Term Stability
TJ = 125°C, 1000 hrs
0.3
1
%
θJC
Thermal Resistance
NDS Package
1
°C/W
Junction to Case
NDE Package
4
°C/W
θJA
Thermal Resistance, Junction to
NDS Package
35
°C/W
Ambient (No Heat Sink)
NDE Package
50
°C/W
(1)
Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specifications for thermal regulation.
Copyright © 1998–2013, Texas Instruments Incorporated
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