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LT1619 Datasheet(PDF) 16 Page - Linear Technology

Part # LT1619
Description  Low Voltage Current Mode PWM Controller
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1619 Datasheet(HTML) 16 Page - Linear Technology

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



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