MAX1742 Просмотр технического описания (PDF) - Maxim Integrated
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производитель
MAX1742
Maxim Integrated
MAX1742 Datasheet PDF : 16 Pages
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1A/2.7A, 1MHz, Step-Down Regulators with
Synchronous Rectification and Internal Switches
Typical Operating Characteristics (continued)
(Circuit of Figure 1, TA = +25°C, unless otherwise noted.)
MAX1742
STARTUP AND SHUTDOWN
MAX1742 toc06
MAX1742
LOAD-TRANSIENT RESPONSE
MAX1742 toc07
1ms/div
IINPUT
0A 1A/div
VSHDN
0V 5V/div
VOUTPUT
0V 1V/div
0V VSS
2V/div
10μs/div
VOUTPUT
AC-COUPLED,
50mV/div
IL
0.5A/div
0V
MAX1742
LINE-TRANSIENT RESPONSE
MAX1742 toc08
VINPUT
2V/div
0V
VOUTPUT
20mV/div
AC-COUPLED
20μs/div
IOUT = 1A, VOUT = 1.5V, RTOFF = 100kΩ, L = 6μH
500
450
400
350
300
250
200
150
100
50
0
0
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
100 MAX1742 toc09
90
NO LOAD
80
70
60
50
40
30
SHUTDOWN
20
10
0
123456
VIN (V)
OFF-TIME vs. RTOFF
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 50 100 150 200 250 300 350 400 450 500
RTOFF (kΩ)
6 _______________________________________________________________________________________
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