參數(shù)資料
型號: LT1680ISW
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: High Power DC/DC Step-Up Controller
中文描述: SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO16
封裝: 0.300 INCH, PLASTIC, SOP-16
文件頁數(shù): 16/16頁
文件大小: 322K
代理商: LT1680ISW
16
LT1680
TYPICAL APPLICATIO
N
U
–48V to 5V 30W Forward Converter
220
μ
F
35V
5V
REF
C
T
I
AVG
SS
SYNC
LT1680
SENSE
+
RUN/SHDN
12V
IN
7
1
15
IRF640
MBR0520LT1
MBR2045CT
MBR2045CT
13
10
9
16
11
14
1
μ
F
0.1
μ
F
300pF
1.5nF
T1
L1
20
μ
H
1nF 0.1
μ
F
0.1
μ
F
L1: PHILIPS EFD20-3F3-E63-S
(CORE SET, AI = 63nH/T
)
OUTPUT 18T BIFILAR 22AWG
BIAS 54T BIFILAR 32AWG
T1: COILTRONICS VP5-1200, 1:1:1:1:1:1
(SIX WINDINGS EACH 77
μ
H)
*SANYO CV-GX
**SANYO OS-CON
ALL RESISTORS 1.4W, 1% UNLESS
INDICATED OTHERWISE
0.22
μ
F
2.2nF
16k
20k
78.7k
20k
1M
BAV21
L1
7.5k
10
24k
INPUT
COM
–48V
INPUT
24k
24k
4.75k
1k
1680 TA03
2N7000
2N3904
2
3
4
5
6
12
8
SENSE
GATE
V
C
V
FB
SGND PGND
SL/ADJ
V
REF
+
1.5nF
Q7
2N5401
330
μ
F**
6.3V
5V
6A
OUT
OUTPUT
COM
0.033
μ
F
33
4.22k
1.2k
33
0.015
1W
50
1W
1
μ
F
63V
1k
+
220
μ
F*
35V
+
220
μ
F*
35V
+
220
μ
F*
35V
+
220
μ
F*
35V
+
SW Package
16-Lead Plastic Small Outline (Wide 0.300)
(LTC DWG # 05-08-1620)
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTIO
N
U
PART NUMBER
LT1268
LT1270A
LT1339
LT1370
LT1371
DESCRIPTION
7.5A, 150kHz Switching Regulator
10A, 60kHz Switching Regulator
High Power Synchronous DC/DC Controller
500kHz, 6A Boost Switching Regulator
500kHz, 3A Boost Switching Regulator
COMMENTS
Integrated Switch Can Be Used in Isolated Flyback Mode
Integrated Switch Can Be Used in Isolated Flyback Mode
Operation to 60V, No Shoot-Through N-Channel Output Drivers
Integrated Switch, Regulates Positive or Negative Outputs
Integrated Switch, Regulates Positive or Negative Outputs
S16 (WIDE) 0396
NOTE 1
0.398 – 0.413*
(10.109 – 10.490)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
0.394 – 0.419
(10.007 – 10.643)
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
RELATED PARTS
*
**
1680f LT/TP 0298 4K PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1997
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
G
(408) 432-1900
FAX: (408) 434-0507
G
TELEX: 499-3977
G
www.linear-tech.com
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