|
LT1074I Datasheet, PDF (16/16 Pages) Linear Technology – Step-Down Switching Regulator | |||
|
◁ |
LT1074/LT1076
TYPICAL APPLICATIO
Negative Boost Converter
VIN VFB
LT1074
C3 +
GND
VC VSW
200µF
15V
C2
0.01µF
1nF
R3
750â¦
VIN
â5V TO â15V
* MBR735
** IOUT (MAX) = 1A TO 3A DEPENDING
ON INPUT VOLTAGE. SEE AN44
100pF
R1
12.7k
L1
25µH
R2
2.21k
+ C1
1000µF
D1*
25V
VOUT
â15V**
+
100µF
5µH
OPTIONAL OUTPUT FILTER
LT1074 ⢠TA04
PACKAGE DESCRIPTIO
0.390 â 0.415
(9.906 â 10.541)
0.460 â 0.500
(11.684 â 12.700)
T7 Package
7-Lead Plastic TO-220 (Standard)
(Reference LTC DWG # 05-08-1422)
0.147 â 0.155
(3.734 â 3.937)
DIA
0.165 â 0.180
(4.191 â 4.572)
0.230 â 0.270
(5.842 â 6.858)
0.570 â 0.620
(14.478 â 15.748)
0.330 â 0.370
(8.382 â 9.398)
0.620
(15.75)
TYP
0.700 â 0.728
(17.780 â 18.491)
0.045 â 0.055
(1.143 â 1.397)
0.050
BSC (1.27)
0.026 â 0.036
(0.660 â 0.914)
SEATING PLANE
0.152 â 0.202
0.260 â 0.320 (3.860 â 5.130)
(6.604 â 8.128)
0.135 â 0.165
(3.429 â 4.191)
0.095 â 0.115
(2.413 â 2.921)
0.155 â 0.195*
(3.937 â 4.953)
0.013 â 0.023
(0.330 â 0.584)
*MEASURED AT THE SEATING PLANE
T7 (TO-220) 0399
RELATED PARTS
PART NUMBER
LT1375/LT1376
LT1374/LT1374HV
LT1370
LT1676
LT1339
LT1765
DESCRIPTION
1.5A, 500kHz Step-Down Switching Regulators
4.5A, 500kHz Step-Down Switching Regulators
6A, 500kHz High Efficiency Switching Regulator
Wide Input Range, High Efficiency Step-Down Regulator
High Power Synchronous DC/DC Controller
3A, 1.25MHz, Step-Down Regulator
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 â FAX: (408) 434-0507 â www.linear.com
COMMENTS
VIN Up to 25V, IOUT Up to 1.25A, SO-8
VIN Up to 25V (32V for HV), IOUT Up to 4.25A, SO-8/DD
6A/42V Internal Switch, 7-Lead DD/TO-220
VIN from 7.4V to 60V, IOUT Up to 0.5A, SO-8
VIN Up to 60V, IOUT Up to 50A, Current Mode
VIN = 3V to 25V, VµF =1.2V, TSSOP-16E, SO8 Package
sn1074 1074fds
LT/CPI 0202 1.5K REV D ⢠PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1994
|