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LT1619EMS8#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
16
LT1619
1619fa
Figure 17a. 5V to –48V Cuk Converter
LOAD CURRENT (mA)
10
79
EFFICIENCY (%)
81
83
85
87
100 1000
1619 F17b
90
89
80
82
84
86
88
V
IN
= 5.25V
V
IN
= 4.75V
V
IN
= 5V
Figure 17b. Efficiency of the 5V to –48V Cuk
TYPICAL APPLICATIO S
U
10µF
SUD45N05-20L
50V, 0.018Ω
43nC
1µF
T1
•
4.7µF
FILM
22nF
T1: COILTRONICS CTX02-14261, EFD20-3F3, 6 WINDINGS EACH, 12µH
2.2nF
15Ω
1619 F17a
30Ω
220pF
2N5210
36k
1.1k
+
470µF
35V
SANYO MV-GX
–48V/0.5A
+
470µF
35V
SANYO MV-GX
S/S
FB
V
C
GND
8
7
6
5
1
2
3
4
V
IN
DRV
GATE
SENSE
•
•
•
•
•
4.7µF
FILM
MBRS340T3
MBRS340T3
1500µF
6.3V
SANYO MV-GX
1N749
4.3V
V
IN
4.75V TO
5.25V
2N5210
10.5k
1%
12k1M
0.007Ω
432k
1%
LT1619
+
17
LT1619
1619fa
Figure 18a. Isolated Local SLIC Power Supply (Flyback) 20W Total Output Power (65V/0.3A or 32.5V/0.6A)
T1
W1
W4
W3
W2
•
•
•
•
10µF
IRLR024N
55V, 0.065Ω
Q
G
= 15nC
330pF
50V
1µF
0.1µF
150µF
20V
SANYO
20SV150M
(OS-CON)
43Ω
MBRS1100T3
1619 F18a
43Ω
1/4W
100Ω
82k
20k
8.1V
10k
S/S
FB
V
C
GND
8
7
6
5
1
2
3
4
V
IN
DRV
GATE
SENSE
1k
1W
1µF
50V
330pF
100V
2.2µF
40V
470pF
2.2µF
40V
–32.5V
–65V
0.22µF
50V
MBRS1100T3
MBRS1100T3
V
IN
10.5V TO
13.7V
0.008Ω
62k
100Ω
6.2V
10k
470Ω
CNY17-3
121Ω
220pF
2.49k
T1
PHILIPS EFD20-3F3-A100-S
CORE SET (0.013" GAP, AI = 100nH/T
2
W4 6T TRIFILAR 28AWG
W1 6T TRIFILAR 28AWG
W3 24T 28AWG
W2 24T 28AWG
2mil
POLYESTER
FILM
LT1619
LT1431
1
2
3
4
8
7
6
5
COLL
NC
V+
NC
REF
NC
FGND
SGND
LOAD CURRENT (mA)
10
50
EFFICIENCY (%)
60
70
90
100 1000
1619 F18b
80
55
65
85
75
V
IN
= 13.7V
V
IN
= 12V
V
IN
= 10.5V
Figure 18b. Efficiency of the Isolated Local SLIC (Flyback)
TYPICAL APPLICATIO S
U
18
LT1619
1619fa
PACKAGE DESCRIPTION
U
MSOP (MS8) 0802
0.53 ± 0.015
(.021 ± .006)
SEATING
PLANE
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
0.18
(.077)
0.254
(.010)
1.10
(.043)
MAX
0.22 – 0.38
(.009 – .015)
TYP
0.13 ± 0.076
(.005 ± .003)
0.86
(.034)
REF
0.65
(.0256)
BSC
0
° – 6° TYP
DETAIL “A”
DETAIL “A”
GAUGE PLANE
12
3
4
4.90
± 0.15
(1.93 ± .006)
8
7
6
5
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
3.00 ± 0.102
(.118 ± .004)
NOTE 4
0.52
(.206)
REF
5.23
(.206)
MIN
3.2 – 3.45
(.126 – .136)
0.889 ± 0.127
(.035 ± .005)
RECOMMENDED SOLDER PAD LAYOUT
0.42 ± 0.04
(.0165 ± .0015)
TYP
0.65
(.0256)
BSC
MS8 Package
8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LT1619EMS8#PBF

Mfr. #:
Buy LT1619EMS8#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Current-Mode Boost Controller
Lifecycle:
New from this manufacturer.
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