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MAX1953 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX1953
Description  Low-Cost, High-Frequency, Current-Mode PWM Buck Controller
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1953 Datasheet(HTML) 4 Page - Maxim Integrated Products

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Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
Low-Cost, High-Frequency, Current-Mode PWM
Buck Controller
4
_______________________________________________________________________________________
MAX1954
EFFICIENCY vs. LOAD CURRENT
LOAD CURRENT (A)
1
50
60
70
80
90
100
40
0.1
10
VOUT = 2.5V
VOUT = 1.7V
VIN = 5V
CIRCUIT OF FIGURE 2
MAX1953
OUTPUT VOLTAGE vs. LOAD CURRENT
LOAD CURRENT (A)
2.5
2.0
1.5
1.0
0.5
2.45
2.50
2.55
2.60
2.40
0
3.0
VIN = 5V
VIN = 3.3V
CIRCUIT OF FIGURE 1
MAX1954
OUTPUT VOLTAGE vs. LOAD CURRENT
LOAD CURRENT (A)
5
4
3
2
1
2.40
2.45
2.50
2.55
2.60
2.35
06
VHSD = VIN = 5V
CIRCUIT OF FIGURE 2
MAX1953
EFFICIENCY vs. LOAD CURRENT
LOAD CURRENT (A)
1
55
60
65
70
75
80
85
90
95
100
50
0.1
10
VIN = 3.3V
VIN = 5V
VOUT = 2.5V
CIRCUIT OF FIGURE 1
MAX1957
EFFICIENCY vs. LOAD CURRENT
LOAD CURRENT (A)
1
50
60
70
80
90
100
40
0.1
10
VOUT = 1.25V
VIN = 5V
CIRCUIT OF FIGURE 3
MAX1954
EFFICIENCY vs. LOAD CURRENT
LOAD CURRENT (A)
20
15
10
5
55
60
65
70
75
80
85
90
95
100
50
025
VOUT = 1.8V
VIN = 12V
CIRCUIT OF FIGURE 4
MAX1954
OUTPUT VOLTAGE vs. LOAD CURRENT
LOAD CURRENT (A)
5
4
3
2
1
1.60
1.65
1.70
1.75
1.80
1.55
06
VHSD = VIN = 5V
CIRCUIT OF FIGURE 2


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