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LTC1149CS Datasheet(PDF) 20 Page - Linear Technology

Part # LTC1149CS
Description  High Efficiency Synchronous Step-Down Switching Regulators
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1149CS Datasheet(HTML) 20 Page - Linear Technology

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LTC1149
LTC1149-3.3/LTC1149-5
© LINEAR TECHNOLOGY CORPORATION 1993
1149fa LT/TP 0898 REV A 2K • PRINTED IN USA
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTIO
S Package
16-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
× 45°
0
° – 8° TYP
0.008 – 0.010
(0.203 – 0.254)
S16 0695
1
2
3
4
5
6
7
8
0.150 – 0.157**
(3.810 – 3.988)
16
15
14
13
0.386 – 0.394*
(9.804 – 10.008)
0.228 – 0.244
(5.791 – 6.197)
12
11
10
9
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
TYP
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*
**
TYPICAL APPLICATION
Figure 17. High Efficiency 24V Input 12V/3A Output Regulator
PART NUMBER
DESCRIPTION
COMMENTS
LTC1148HV
High Efficiency, Synchronous Step-Down Switching Regulator
4V < VIN < 20V
LTC1159
High Efficiency, Synchronous Step-Down Switching Regulator
4V < VIN < 40V, ISHUTDOWN = 20µA
LTC1435A
High Efficiency, Low Noise, Synchronous Switching Regulator
3.5V < VIN < 36V, N-Channel Driver
LTC1438
Dual, Low Noise, Synchronous Switching Regulator
3.5V < VIN < 36V, N-Channel Driver
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com
PGATE
VIN
VCC
PDRIVE
VCC
CT
ITH
SENSE–
CAP
SHDN2
RGND
NGATE
PGND
SGND
VFB
SENSE+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LTC1149
0.068
µF
0.047
µF
1N4148
1N4148
3300pF
1k
300pF
3.3
µF
1000pF
MTP36N06E
MBR160
220
µF
50V
VIN
20V TO 30V
L*
100
µH
150
µF
16V
× 2
OS-CON
1149 F17
VOUT
12V/3A
*HURRICANE LAB HL-EK210M
**KRL SL-1-C1-0R033J
MTP23P06
SHUTDOWN
100
Ω
100
Ω
R1
20k
1%
R2
172k
1%
RSENSE**
0.033
Ω
OUTPUT
GROUND
CONNECTION
100pF
+
+
+



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