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LT1619 データシートの表示(PDF) - Linear Technology

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LT1619 Datasheet PDF : 20 Pages
First Prev 11 12 13 14 15 16 17 18 19 20
LT1619
TYPICAL APPLICATIO S
VIN
4.75V TO
5.25V
+ 1500µF
6.3V
SANYO MV-GX
1N749
4.3V
1µF
15
2.2nF
1
S/S
8
VIN
1.1k
2
FB
7
DRV
LT1619
3
6
VC
GATE
36k 4
5
GND SENSE
22nF
10µF
T1: COILTRONICS CTX02-14261, EFD20-3F3, 6 WINDINGS EACH, 12µH
T1
MBRS340T3
–48V/0.5A
470µF
35V
SANYO MV-GX
4.7µF
FILM
470µF
35V
SANYO MV-GX
4.7µF
FILM MBRS340T3
SUD45N05-20L
50V, 0.018
43nC
30
220pF
0.007
1M
12k
2N5210
2N5210
1619 F17a
10.5k
1%
432k
1%
Figure 17a. 5V to – 48V Cuk Converter
90
89
88
87
86
85
84
83
82
81
80
79
10
VIN = 5.25V
VIN = 5V
VIN = 4.75V
100
LOAD CURRENT (mA)
1000
1619 F17b
Figure 17b. Efficiency of the 5V to – 48V Cuk
16

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