参数资料
型号: LTC3108IDE#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 0.45 A SWITCHING REGULATOR, PDSO12
封装: 4 X 3 MM, LEAD FREE, PLASTIC, MO-229WGED, DFN-12
文件页数: 17/22页
文件大小: 1300K
代理商: LTC3108IDE#PBF
LTC3108
3108fa
Typical perForMance characTerisTics
IVOUT and Efficiency vs VIN,
1:20 Ratio Transformer
Input Resistance vs VIN
(VOUT Charging)
IVOUT vs VIN and Source Resistance,
1:20 Ratio
TA = 25°C, unless otherwise noted.
IVOUT and Efficiency vs VIN,
1:50 Ratio Transformer
IVOUT and Efficiency vs VIN,
1:100 Ratio Transformer
VIN (mV)
0
I VOUT
(A)
EFFICIENCY
(%)
2500
3000
3500
2000
1500
100
200
400
300
500
0
1000
4000
50
60
70
40
30
10
0
20
80
3108 G01
IVOUT
(VOUT = 4.5V)
EFFICIENCY
(VOUT = 4.5V)
IVOUT
(VOUT = 0V)
C1 = 10nF
VIN (mV)
0
I VOUT
(A)
EFFICIENCY
(%)
2000
2400
2800
1600
1200
100
200
400
300
500
400
0
800
3200
50
60
70
40
30
10
0
20
80
3108 G02
C1 = 4.7nF
IVOUT
(VOUT = 4.5V)
EFFICIENCY
(VOUT = 4.5V)
IVOUT
(VOUT = 0V)
VIN (mV)
0
I VOUT
(A)
EFFICIENCY
(%)
1000
1200
800
600
100
200
400
300
500
200
0
400
1400
50
60
70
40
30
10
0
20
3108 G03
C1 = 1nF
IVOUT
(VOUT = 4.5V)
EFFICIENCY
(VOUT = 4.5V)
IVOUT
(VOUT = 0V)
VIN (mV)
0
INPUT
RESIST
ANCE
()
5
6
7
4
3
100
200
400
300
500
1
0
2
8
9
10
3108 G04
1:20 RATIO
1:50 RATIO
1:100 RATIO
VIN OPEN-CIRCUIT (mV)
I VOUT
(A) 100
10
1000
10000
0
3108 G05
0
200 300
500
100
400
600 700 800
1
2
5
10
C1 = 10nF
VIN (mV)
I IN
(mA)
3108 G00
1000
100
10
1
10
100
1000
1:50 RATIO, C1 = 4.7n
1:100 RATIO, C1 = 1n
1:20 RATIO, C1 = 10n
IIN vs VIN, (VOUT = 0V)
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