參數(shù)資料
型號: LTC3127EMSE#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PDSO12
封裝: LEAD FREE, PLASTIC, MSOP-12
文件頁數(shù): 15/20頁
文件大小: 366K
代理商: LTC3127EMSE#TRPBF
LTC3127
3127f
Typical perForMance characTerisTics
Average Input Current Limit
vs VIN (Normalized)
Average Input Current Limit
vs Temperature (Normalized)
Quiescent Current vs VIN (Fixed
Frequency Mode–Not Switching)
Burst Mode Quiescent Current
vs VIN
No Load Input Current vs VIN in
Burst Mode Operation
Efficiency vs Load Current
(TJ = 25°C, unless otherwise noted )
VIN (V)
1.8
INPUT
CURRENT
LIMIT
(%)
–1
2
2.6
3.4
4.2
–3
–2
–4
–5
1
0
2.2
3
5
3.8
4.6
5.4
3127 G04
VOUT = 3.3V
RPROG = 32.4k
TEMPERATURE (°C)
–45
INPUT
CURRENT
LIMIT
(%)
–1
2
–15
15
45
–3
–2
–4
–5
1
0
–30
0
75
30
60
90
3127 G05
VOUT = 3.3V
RPROG = 32.4k
PWM
BURST
LOAD CURRENT (mA)
EFFICIENCY
(%)
0.1
10
100
1000
1
3127 G01
VIN = 1.8V
VIN = 3.6V
VIN = 5V
40
50
60
70
80
30
20
10
0
90
100
VOUT = 1.8V
BURST
PWM
LOAD CURRENT (mA)
EFFICIENCY
(%)
0.1
10
100
1000
1
3127 G02
VIN = 2.9V
VIN = 3.6V
VIN = 4.3V
40
50
60
70
80
30
20
10
0
90
100
VOUT = 3.3V
100
10
1000
1
0.1
10000
BURST
PWM
LOAD CURRENT (mA)
EFFICIENCY
(%)
3127 G03
VIN = 4.5V
VIN = 5V
VIN = 5.5V
40
50
60
70
80
30
20
10
0
90
100
VOUT = 5V
VIN (V)
1.8
INPUT
CURRENT
(A)
51.5
52.0
4.6
51.0
50.5
2.6
3.4
2.2
3
3.8
5
4.2
5.4
49.0
48.5
50.0
52.5
49.5
3127 G08
VOUT = 3.3V
VIN (V)
1.8
INPUT
CURRENT
(A)
390
410
4.6
370
350
2.6
3.4
2.2
3
3.8
5
4.2
5.4
290
270
330
430
310
3127 G06
VIN (V)
1.8
INPUT
CURRENT
(A)
35
38
2.6
3.4
4.2
33
34
32
37
36
2.2
3
5
3.8
4.6
5.4
3127 G07
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