MAX5080ATE Просмотр технического описания (PDF) - Maxim Integrated
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MAX5080ATE Datasheet PDF : 19 Pages
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1A, 40V, MAXPower Step-Down
DC-DC Converters
Typical Operating Characteristics (continued)
(VIN = 12V, see Figure 5 (MAX5080) and Figure 6 (MAX5081), TA = +25°C, unless otherwise noted.)
OPERATING FREQUENCY
vs. TEMPERATURE
260
MAXIMUM DUTY CYCLE
vs. INPUT VOLTAGE (MAX5080)
100
MAXIMUM DUTY CYCLE
vs. INPUT VOLTAGE (MAX5081)
100
258
98
98
256
96
96
254
94
94
252
VIN = 4.5V
92
92
250
90
90
248
88
88
246
VIN = 40V
86
86
244
84
84
242
82
82
240
-40 -15
10 35 60 85
TEMPERATURE (°C)
110 135
80
0
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
80
0
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
OPEN-LOOP GAIN/PHASE vs. FREQUENCY
MAX5080 toc10
100
175
80
60
40
20
PHASE
0
GAIN
150
125
100
75
OUTPUT CURRENT LIMIT
vs. INPUT VOLTAGE
2.5
MAX5080
2.4
2.3
TA = -40°C
TA = +25°C
2.2
2.1
2.0
1.9
TA = +85°C TA = +135°C
1.8
1.7
1.6
-20
50
0 0.001 0.01 0.1 1 10 100 1000 10,000
FREQUENCY (kHz)
1.5
0
5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
TURN-ON/OFF WAVEFORM
MAX5080 toc12
ILOAD = 1A
VON/OFF
2V/div
TURN-ON/OFF WAVEFORM
MAX5080 toc13
ILOAD = 100mA
VON/OFF
2V/div
VOUT
2V/div
VOUT
2V/div
2ms/div
2ms/div
_______________________________________________________________________________________ 5
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