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| LT1072CN8 Datasheet, PDF (13/16 Pages) Linear Technology – 1.25A High Efficiency Switching Regulator | |||
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TYPICAL APPLICATIO S
Negative Boost Regulator
D2
C4 +
470µF*
VIN
â15V
VSW
VIN
LT1072
R1
27k +
GND
L1
200µH
VC FB
R3
3.3k
C2
0.22µF
R2
1.24k
*REQUIRED IF INPUT LEADS ⥠2"
C3 +
10µF
D1
C1
1000µF
R0
(MINIMUM
LOAD)
VOUT
â28V AT 0.25A
LT1072 ⢠TA13
LT1072
PACKAGE DESCRIPTIO
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
CORNER LEADS OPTION
(4 PLCS)
.045 â .068
(1.143 â 1.650)
FULL LEAD
OPTION
.300 BSC
(7.62 BSC)
.023 â .045
(0.584 â 1.143)
HALF LEAD
OPTION
.005
(0.127)
MIN
.025
(0.635)
RAD TYP
.405
(10.287)
MAX
8
7
65
.220 â .310
(5.588 â 7.874)
1
2
3
4
.200
(5.080)
MAX
.015 â .060
(0.381 â 1.524)
.008 â .018
(0.203 â 0.457)
0° â 15°
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
.045 â .065
(1.143 â 1.651)
.014 â .026
(0.360 â 0.660)
OBSOLETE PACKAGE
.100
(2.54)
BSC
.125
3.175
MIN
J8 0801
1072fc
13
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