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전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크

MAX5025 데이터 시트보기 (PDF) - Maxim Integrated

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MAX5025 Datasheet PDF : 13 Pages
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500kHz, 36V Output, SOT23,
Step-Up DC-DC Converters
(VCC = 5V, VOUT = 30V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
EFFICIENCY vs. LOAD CURRENT
(VOUT = 12V)
90
80
70
60
50
40
30
20
10
0
0
MAX5026
VCC = 5V,
VOUT = 12V
CIRCUIT OF FIGURE 2.
R1 = 147kΩ, R2 = 16.2kΩ
2
4
6
8
10
LOAD CURRENT (mA)
EFFICIENCY vs. LOAD CURRENT
(VOUT = 30V)
70
60
50
40
30
20
10
0
0
MAX5026
VCC = 5V,
VOUT = 30V
CIRCUIT OF FIGURE 2.
R1 = 147kΩ, R2 = 6.34kΩ
1
2
3
4
LOAD CURRENT (mA)
MAX5026
NO LOAD SUPPLY CURRENT
vs. SUPPLY VOLTAGE
16
CIRCUIT OF FIGURE 2
14 VOUT = 30V
12
10
8
6
4
2
0
3
5
7
9
11
SUPPLY VOLTAGE (V)
EFFICIENCY vs. LOAD CURRENT
(VOUT = 15V)
90
80
70
60
50
40
30
20
10
0
0
MAX5026
VCC = 5V,
VOUT = 12V
CIRCUIT OF FIGURE 2.
R1 = 147kΩ, R2 = 13kΩ
2
4
6
8
LOAD CURRENT (mA)
MAX5026 MINIMUM STARTUP VOLTAGE
vs. LOAD CURRENT
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
1
2
3
4
LOAD CURRENT (mA)
SUPPLY CURRENT vs. TEMPERATURE
850
750
VCC = 11V
650
VCC = 9V
VCC = 7V
550
VCC = 5V
450
VCC = 3V
350
250
150
-40 -20
CURRENT INTO VCC PIN
0 20 40 60 80
TEMPERATURE (°C)
EFFICIENCY vs. LOAD CURRENT
(VOUT = 24V)
80
70
60
50
40
30
20
10
0
0
MAX5026
VCC = 5V,
VOUT = 24V
CIRCUIT OF FIGURE 2.
R1 = 147kΩ, R2 = 8.07kΩ
1
2
3
4
5
LOAD CURRENT (mA)
MAX5026/MAX5028
SUPPLY CURRENT vs. SUPPLY VOLTAGE
500
450
400
350
300
250
200
150
100
50
0
0
CURRENT INTO VCC PIN
DEVICE NOT SWITCHING
3
6
9
12
SUPPLY VOLTAGE (V)
MAX5026
SWITCHING FREQUENCY vs. TEMPERATURE
650
600
VCC = 5V
VOUT = 30V
550
CIRCUIT OF FIGURE 2.
500
450
400
350
300
250
200
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
4 _______________________________________________________________________________________

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