參數(shù)資料
型號: LT1871EMS-7#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO10
封裝: PLASTIC, MSOP-10
文件頁數(shù): 22/32頁
文件大小: 461K
代理商: LT1871EMS-7#TR
LTC1871-7
29
18717fc
TYPICAL APPLICATIONS
Output Efciency at 3.3V Output
A 48V Input Flyback Converter Congurable to 3.3V or 5V Outputs
Output Efciency at 5V Output
9
7
10
8
6
1
2
4
5
3
100k
VIN
36V TO 72V
10V
26.7k
82.5k
12.4k
R2*
21k
*R2 = 38.3k FOR VOUT = 5V
R1
604k
1nF
0.1μF
2.2μF
100V
100μF
6.3V
×3
VOUT
3.3V
3A MAX
T1B
UPS840
CTX-002-15242
T1A
Q1
FDC2512
ALL CAPACITORS
ARE CERAMIC
X5R TYPE
R3
0.1Ω
4.7μF
18717 TA02a
RUN
ITH
FREQ
MODE/SYNC
VFB
VIN
GATE
SENSE
INTVCC
GND
LTC1871-7
MMBTA42
ILOAD (A)
0
60
EFFICIENCY
(%)
65
70
75
80
90
1
234
18717 TA02b
56
85
36VIN
48VIN
72VIN
ILOAD (A)
0
60
EFFICIENCY
(%)
65
70
75
80
90
1
234
18717 TA02c
5
85
36VIN
48VIN
72VIN
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