MAX1771 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1771 Datasheet PDF : 16 Pages
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12V or Adjustable, High-Efficiency,
Low IQ, Step-Up DC-DC Controller
INPUT
2.7V TO 5.5V
150µF
22µH
OFF
ON
4
SHDN
EXT 1
CS 8
MAX1771
5
REF
2
V+
1N5820
OUTPUT
5V
1A
MTD20N03HDL
0.04Ω
330µF
0.1µF
0.1µF
GND AGND FB 3
7
6
232k
100pF
100k
EFFICIENCY vs. LOAD CURRENT
100
90
VIN = 4V
80
70
VIN = 3V
60
50
1m
10m
100m
1
LOAD CURRENT (A)
Figure 9. 5V/1A Boost Converter
___________________Chip Topography
EXT
V+
CS
0.126"
(3.200mm)
GND
FB
AGND
SHDN
0.080"
REF
(2.032mm)
TRANSISTOR COUNT: 501
SUBSTRATE CONNECTED TO V+
16 ______________________________________________________________________________________
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