LTC1149CN 查看數據表（PDF） - Linear Technology
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LTC1149CN Datasheet PDF : 20 Pages
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LTC1149
LTC1149-3.3/LTC1149-5
U
PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted.
S Package
16-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
0° – 8° TYP
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0.386 – 0.394*
(9.804 – 10.008)
16 15 14 13 12 11 10 9
0.016 – 0.050
0.406 – 1.270
0.014 – 0.019
(0.355 – 0.483)
*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
0.050
(1.270)
TYP
0.228 – 0.244
(5.791 – 6.197)
0.150 – 0.157**
(3.810 – 3.988)
1
2
3
4
5
6
7
8
S16 0695
TYPICAL APPLICATION
VIN
20V TO 30V
+
3.3µF
1N4148
0.047µF
300pF
0.068µF
3300pF
1k
1N4148
MTP23P06
+ 220µF
50V
1
PGATE
CAP 16
L*
100µH
2
VIN
3
VCC
15
SHDN2
SHUTDOWN
RGND 14
4
PDRIVE
NGATE 13
5
VCC
LTC1149 PGND 12
6
CT
SGND 11
7
ITH
VFB 10
8 SENSE–
SENSE+ 9
MTP36N06E
100pF
100Ω
1000pF
100Ω
MBR160
R2
172k
1%
R1
20k
1%
*HURRICANE LAB HL-EK210M
**KRL SL-1-C1-0R033J
Figure 17. High Efficiency 24V Input 12V/3A Output Regulator
VOUT
12V/3A
+ 150µF
16V × 2
OS-CON
RSENSE**
0.033Ω
OUTPUT
GROUND
CONNECTION
1149 F17
RELATED PARTS
PART NUMBER
LTC1148HV
LTC1159
LTC1435A
LTC1438
DESCRIPTION
High Efficiency, Synchronous Step-Down Switching Regulator
High Efficiency, Synchronous Step-Down Switching Regulator
High Efficiency, Low Noise, Synchronous Switching Regulator
Dual, Low Noise, Synchronous Switching Regulator
COMMENTS
4V < VIN < 20V
4V < VIN < 40V, ISHUTDOWN = 20µA
3.5V < VIN < 36V, N-Channel Driver
3.5V < VIN < 36V, N-Channel Driver
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com
1149fa LT/TP 0898 REV A 2K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1993
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