參數(shù)資料
型號(hào): LT3470IDDB#PBF
廠(chǎng)商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: 0.2 A SWITCHING REGULATOR, PDSO8
封裝: 3 X 2 MM, 0.75MM INCH HEIGHT, LEAD FREE, MO-229WECD-1, PLASTIC, DFN-8
文件頁(yè)數(shù): 15/20頁(yè)
文件大?。?/td> 256K
代理商: LT3470IDDB#PBF
4
LT3470
3470fc
VIN Quiescent Current
vs Temperature
BIAS Quiescent Current
(Bias > 3V) vs Temperature
SHDN Bias Current
vs Temperature
FB Bias Current (VFB = 1V)
vs Temperature
Top and Bottom Switch Current
Limits (VFB = 0V) vs Temperature
TEMPERATURE (
°C)
–50
BIAS
CURRENT
(
A)
20
25
30
25
75
3470 G06
15
10
–25
0
50
100
150
125
5
0
TEMPERATURE (
°C)
–50
0
SHDN
CURRENT
(
A)
1
3
4
5
50
9
3470 G07
2
0
–25
75
100
25
150
125
6
7
8
VSHDN = 36V
VSHDN = 2.5V
TEMPERATURE (
°C)
–50 –25
0
FB
CURRENT
(nA)
20
60
50
0
50
75
3470 G08
10
40
30
25
100
150
125
TEMPERATURE (
°C)
–50
CURRENT
LIMIT
(mA)
350
25
3470 G04
200
100
–25
0
50
0
400
300
250
150
75
100
150
125
TEMPERATURE (
°C)
–50 –25
0
V
IN
CURRENT
(
A)
20
50
0
50
75
3470 G05
10
40
30
25
100
150
125
BIAS < 3V
BIAS > 3V
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Efficiency, VOUT = 5V
Efficiency, VOUT = 3.3V
VFB vs Temperature
LOAD CURRENT (mA)
50
EFFICIENCY
(%)
70
90
40
60
80
0.1
10
100
3470 G01
30
1
L = TOKO D52LC 47
H
TA = 25°C
VIN = 7V
VIN = 12V
VIN = 36V
VIN = 24V
LOAD CURRENT (mA)
50
EFFICIENCY
(%)
70
90
40
60
80
0.1
10
100
3470 G02
30
1
L = TOKO D52LC 47
H
TA = 25°C
VIN = 12V
VIN = 36V
VIN = 24V
TEMPERATURE (
°C)
–50
1.240
V
FB
(V)
1.245
1.250
1.255
1.260
–25
0
25
50
3470 G03
75
100
125
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