參數資料
型號: 1374HV
廠商: Linear Technology Corporation
元件分類: 基準電壓源/電流源
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 抗輻射高效,5安培開關穩(wěn)壓器
文件頁數: 5/32頁
文件大小: 309K
代理商: 1374HV
5
LT1374
1374fb
FEEDBACK PIN VOLTAGE (V)
0
S
μ
A
500
400
300
200
100
0
2.0
1374 G10
0.5
1.0
1.5
2.5
SWITCHING
FREQUENCY
FEEDBACK PIN
CURRENT
Frequency Foldback
LOAD CURRENT (mA)
1
5.8
I
6.0
6.2
6.4
10
100
1000
1374 G12
5.6
5.4
5.2
5.0
MINIMUM
RUNNING
VOLTAGE
MINIMUM
STARTING
VOLTAGE
Minimum Input Voltage
with 5V Output
TEMPERATURE (
°
C)
–50
550
540
530
520
510
500
490
480
470
460
450
100
1374 G11
–25
0
25
50
75
125
F
Switching Frequency
Maximum Load Current
at V
OUT
= 10V
INPUT VOLTAGE (V)
0
C
4.5
4.0
3.5
3.0
5
10
15
20
1374 G13
25
L = 20
μ
H
L = 10
μ
H
L = 5
μ
H
V
OUT
= 10V
Maximum Load Current
at V
OUT
= 3.3V
INPUT VOLTAGE (V)
0
C
4.5
4.0
3.5
3.0
5
10
15
20
1374 G14
25
L = 20
μ
H
L = 10
μ
H
L = 5
μ
H
V
OUT
= 3.3V
Maximum Load Current
at V
OUT
= 5V
INPUT VOLTAGE (V)
0
C
4.5
4.0
3.5
3.0
5
10
15
20
1374 G15
25
L = 20
μ
H
L = 10
μ
H
L = 5
μ
H
V
OUT
= 5V
Shutdown Supply Current
SHUTDOWN VOLTAGE (V)
0
I
μ
A
70
60
50
40
30
20
10
0
0.1
0.2
0.3
0.4
1374 G07
V
IN
= 25V
V
IN
= 10V
Error Amplifier Transconductance
FREQUENCY (Hz)
G
μ
M
P
3000
2500
2000
1500
1000
500
200
150
100
50
0
–50
100
10k
100k
10M
1374 G09
1k
1M
GAIN
PHASE
ERROR AMPLIFIER EQUIVALENT CIRCUIT
R
200k
C
12pF
V
C
R
LOAD
= 50
V
FB
2
×
10
–3
)
(
Error Amplifier Transconductance
JUNCTION TEMPERATURE (
°
C)
–50
T
μ
M
2500
2000
1500
1000
500
0
0
50
75
1374 G08
–25
25
100
125
TYPICAL PERFOR U
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