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参数资料
| 型号： | LT1339ISW#TR |
| 厂商： | Linear Technology |
| 文件页数： | 19/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM CM 20-SOIC |
| 标准包装： | 1,000 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 150kHz |
| 占空比： | 90% |
| 电源电压： | 最高 60V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 包装： | 带卷 (TR) |
LT1339
TYPICAL APPLICATIO N S
5V to 28V DC/DC Synchronous Boost Converter Limits Input Current at 60A (DC)
V OUT
12V
DBST
MBR0530
+
C 12VIN
47 μ F
+
C OUT
2200 μ F
35V
× 6
28V
+ C 5VREF
TS
SGND
+ C
FMMT619
R CT
10k
1 μ F
C CT C AVG
2200pF 2200pF
C SS , 10 μ F
+
C VC , 1500pF
R VC , 7.5k
R FB1 , 27k
C REF , 0.1 μ F
R FB2 , 1.2k
SYNC V BOOST
5V REF
TG
CT
SL/ADJ 12V IN
I AVG LT1339
SS
BG
V C PGND
PHASE
RUN/SHDN
V FB SENSE –
V REF
SENSE +
Q1
+ CBST FMMT619
1 μ F
Q2
FMMT720
Q3
12L
1 μ F
Q4
FMMT720
R R1
100k
R SS2 , 100 ?
L1 = 12T 4X12 ON 77439-A7
R SS1
100 ?
IRF3205
× 2
D2
MBR0520
IRF3205
× 4
D1
IR30BQ060
× 8
R S
0.002 ?
C IN
2200 μ F
L1
40 μ H
V IN
5V AT 60A
+
6.3V
× 4
1339 TA04
PACKAGE DESCRIPTIO N
Dimensions in inches (millimeters) unless otherwise noted.
N Package
20-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
1.040*
0.300 – 0.325
(7.620 – 8.255)
0.130 ± 0.005
(3.302 ± 0.127)
0.045 – 0.065
(1.143 – 1.651)
20
19
18
17
(26.416)
MAX
16 15
14
13
12
11
0.020
(0.508)
0.255 ± 0.015*
0.009 – 0.015
(0.229 – 0.381)
MIN
0.065
(1.651)
TYP
(6.477 ± 0.381)
)
–0.381
(
+0.035
0.325 –0.015
+0.889
8.255
0.125
(3.175)
MIN
0.005
(0.127)
MIN
0.100 ± 0.010
(2.540 ± 0.254)
0.018 ± 0.003
(0.457 ± 0.076)
1
2
3
4
5
6
7
8
9 10
N20 1197
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
SW Package
20-Lead Plastic Small Outline (Wide 0.300)
0.291 – 0.299**
(7.391 – 7.595)
(LTC DWG # 05-08-1620)
0.496 – 0.512*
(12.598 – 13.005)
0.010 – 0.029 × 45 °
(0.254 – 0.737)
0.093 – 0.104
(2.362 – 2.642)
0.037 – 0.045
(0.940 – 1.143)
20
19
18
17
16
15
14
13
12
11
0 ° – 8 ° TYP
0.009 – 0.013
(0.229 – 0.330)
NOTE:
NOTE 1
0.016 – 0.050
(0.406 – 1.270)
0.050
(1.270)
TYP
0.014 – 0.019
(0.356 – 0.482)
TYP
NOTE 1
0.004 – 0.012
(0.102 – 0.305)
0.394 – 0.419
(10.007 – 10.643)
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
1
2
3
4
5
6
7
8
9
10
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
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.
S20 (WIDE) 0396
sn1339 1339fas
19
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