參數(shù)資料
型號(hào): LT1339ISW
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: High Power Synchronous DC/DC Controller
中文描述: SWITCHING CONTROLLER, 150 kHz SWITCHING FREQ-MAX, PDSO20
封裝: 0.300 INCH, PLASTIC, SO-20
文件頁(yè)數(shù): 19/20頁(yè)
文件大小: 415K
代理商: LT1339ISW
19
LT1339
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SW Package
20-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
S20 (WIDE) 0396
NOTE 1
0.496 – 0.512*
(12.598 – 13.005)
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
0.394 – 0.419
(10.007 – 10.643)
9
10
11
12
0.037 – 0.045
(0.940 – 1.143)
0.004 – 0.012
(0.102 – 0.305)
0.093 – 0.104
(2.362 – 2.642)
0.050
(1.270)
TYP
0.014 – 0.019
(0.356 – 0.482)
TYP
0
°
– 8
°
TYP
NOTE 1
0.009 – 0.013
(0.229 – 0.330)
0.016 – 0.050
(0.406 – 1.270)
0.291 – 0.299**
(7.391 – 7.595)
×
45
°
0.010 – 0.029
(0.254 – 0.737)
NOTE:
1. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS.
THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
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
*
**
PACKAGE DESCRIPTIO
N
U
Dimensions in inches (millimeters) unless otherwise noted.
N Package
20-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
N20 1197
0.020
(0.508)
MIN
0.125
(3.175)
MIN
0.130
±
0.005
(3.302
±
0.127)
0.065
(1.651)
TYP
0.045 – 0.065
(1.143 – 1.651)
0.018
±
0.003
(0.457
±
0.076)
0.005
(0.127)
MIN
0.100
±
0.010
(2.540
±
0.254)
0.009 – 0.015
(0.229 – 0.381)
0.300 – 0.325
(7.620 – 8.255)
0.325–0.015
+0.889
–0.381
8.255
(
)
0.255
±
0.015*
(6.477
±
0.381)
1.040*
(26.416)
MAX
1
2
3
4
5
6
7
8
9
10
19
11
12
13
14
16
15
17
18
20
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
TYPICAL APPLICATIO
N
S
5V to 28V DC/DC Synchronous Boost Converter Limits Input Current at 60A (DC)
V
BOOST
TG
TS
12V
IN
BG
PGND
PHASE
RUN/SHDN
SENSE
SENSE
+
12V
C
12VIN
47
IRF3205
×
2
IRF3205
×
4
L1
40
μ
H
V
5V AT 60A
R
FB2
, 1.2k
R
FB1
, 27k
SYNC
5V
REF
CT
SL/ADJ
I
AVG
SS
V
C
SGND
V
FB
V
REF
LT1339
+
CBST
1
μ
F
+
C
IN
2200
μ
F
6.3V
×
4
+
C
12L
1
μ
F
+
R
100k
R
CT
10k
C
2200pF
C
2200pF
C
SS
, 10
μ
F
+
C
VC
, 1500pF
R
VC
, 7.5k
C
REF
, 0.1
μ
F
1339 TA04
L1 = 12T 4X12 ON 77439-A7
C
5VREF
1
μ
DBST
MBR0530
Q1
FMMT619
Q2
FMMT720
Q3
FMMT619
Q4
FMMT720
D2
MBR0520
D1
IR30BQ060
×
8
R
SS2
, 100
R
SS1
100
R
S
0.002
C
2200
μ
F
35V
×
6
+
V
OUT
28V
+
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