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參數(shù)資料
| 型號(hào)： | LT1377IS8#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.7 A SWITCHING REGULATOR, 1160 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 193K |
| 代理商： | LT1377IS8#TRPBF |
4
LT1372/LT1377
Error Amplifier Output Current
vs Feedback Pin Voltage
Shutdown Delay and Threshold
vs Temperature
TEMPERATURE (
°C)
–50
0
SHUTDOWN
DELAY
(
s)
SHUTDOWN
THRESHOLD
(V)
2
6
8
10
20
14
0
50
75
LT1372 G04
4
16
18
12
0
0.2
0.6
0.8
1.0
2.0
1.4
0.4
1.6
1.8
1.2
–25
25
100 125
150
SHUTDOWN THRESHOLD
SHUTDOWN DELAY
S/S Pin Input Current
vs Voltage
Error Amplifier Transconductance
vs Temperature
Switching Frequency
vs Feedback Pin Voltage
VC Pin Threshold and High
Clamp Voltage vs Temperature
FEEDBACK PIN VOLTAGE (V)
400
ERROR
AMPLIFIER
OUTPUT
CURRENT
(
A)
–300
–200
–100
300
100
–0.1
0.1
200
0
–0.3
–0.2
VREF
–55
°C
125
°C
25
°C
LT1372 G06
Minimum Synchronization
Voltage vs Temperature
TEMPERATURE (
°C)
–50
0
MINIMUM
SYNCHRONIZATION
VOLTAGE
(V
P-P
)
0.5
1.0
1.5
2.0
050
100
150
LT1372 G05
2.5
3.0
–25
25
75
125
fSYNC = 700kHz (LT1372)
fSYNC = 1.4MHz (LT1377)
LT1377
LT1372
S/S PIN VOLTAGE (V)
–1
S/S
PIN
INPUT
CURRENT
(
A)
1
3
5
7
LT1372 G07
–1
–3
0
2
4
–2
–4
–5
1
3
5
08
2
4
6
9
VIN = 5V
FEEDBACK PIN VOLTAGE (V)
0
SWITCHING
FREQUENCY
(%
OF
TYPICAL)
70
90
110
0.8
LT1372 G08
50
30
60
80
100
40
20
10
0.2
0.4
0.6
0.1
0.9
0.3
0.5
0.7
1.0
TEMPERATURE (
°C)
–50
0
TRANSCONDUCTANCE
(
mho)
200
600
800
1000
2000
1400
0
50
75
LT1372 G09
400
1600
1800
1200
–25
25
100 125
150
gm =
I (VC)
V (FB)
TEMPERATURE (
°C)
–50
0.4
V
C
PIN
VOLTAGE
(V)
0.6
1.0
1.2
1.4
2.4
1.8
0
50
75
LT1372 G10
0.8
2.0
2.2
1.6
–25
25
100 125
150
VC HIGH CLAMP
VC THRESHOLD
TEMPERATURE (
°C)
–50
FEEDBACK
INPUT
CURRENT
(nA)
400
500
600
150
LT1372 G11
300
200
0
50
100
800
700
–25
25
75
125
VFB =VREF
Feedback Input Current
vs Temperature
TEMPERATURE (
°C)
–50
NEGATIVE
FEEDBACK
INPUT
CURRENT
(
A)
–30
0
50
75
LT1372 G12
–40
–10
–20
–25
25
100 125
150
VNFB =VNFR
Negative Feedback Input Current
vs Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
UW
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