MAX15020ATP(2007) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX15020ATP
(Rev.:2007)
(Rev.:2007)
Maxim Integrated
MAX15020ATP Datasheet PDF : 19 Pages
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2A, 40V Step-Down DC-DC Converter with
Dynamic Output-Voltage Programming
Typical Operating Characteristics (continued)
(VIN = 36V, Circuit of Figure 2, TA = +25°C, unless otherwise noted.)
TURN-ON/TURN-OFF WAVEFORM
MAX15020 toc09
TURN-ON/TURN-OFF WAVEFORM
MAX15020 toc10
VON/OFF
5V/div
0V
VON/OFF
5V/div
0V
VOUT
VIN = 12V, RLOAD = 27Ω
10ms/div
1V/div
0V
VOUT
VIN = 40V, RLOAD = 27Ω
10ms/div
1V/div
0V
REFOUT VOLTAGE vs. TEMPERATURE
1.05
1.03
1.01
0.99
0.97
0.95
-40 -15 10 35 60 85 110 135
TEMPERATURE (°C)
EFFICIENCY vs. LOAD CURRENT
100
90 VIN = 7.5V
80 VIN = 12V
70
60
50
40
30
20
10
0
0.01
VIN = 24V
VIN = 40V
fS = 500kHz
VOUT = 3.3V
0.1
1
10
OUTPUT CURRENT (A)
EFFICIENCY vs. LOAD CURRENT
100
90
80
70
60
50
40
30
20
10
0
0.01
fS = 500kHz
VIN = 40V
VOUT = 30V
0.1
1
10
OUTPUT CURRENT (A)
LOAD TRANSIENT
MAX15020 toc14
LOAD TRANSIENT
MAX15020 toc15
VOUT
50mV/div
AC-COUPLED
IOUT
50mV/div
AC-COUPLED
2A
IOUT
1A
VIN = 12V, VOUT = 3.3V
200µs/div
VOUT
1.2A
0.2A
VIN = 12V, VOUT = 3.3V
200µs/div
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