MAX15108A 查看數據表（PDF） - Maxim Integrated
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MAX15108A
Maxim Integrated
MAX15108A Datasheet PDF : 16 Pages
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MAX15108A
High-Efficiency, 8A, Current-Mode
Synchronous Step-Down Switching Regulator
Typical Operating Characteristics (continued)
(Circuit of Typical Application Circuit, TA = +25°C, unless otherwise noted.)
SWITCHING WAVEFORMS
(IOUT = 8A, VIN = 5V)
MAX15108A toc08
VOUT
10mV/div
AC-COUPLED
ILX
5A/div
VLX
2V/div
400ns/div
SOFT-START WAVEFORMS (ILOAD = 8A)
MAX15108A toc10
VEN
2V/div
1ms/div
VLX
2V/div
ILX
5A/div
VOUT
1V/div
VPGOOD
2V/div
OVERLOAD HICCUP MODE
MAX15108A toc12
VOUT = 0V ONLY IN A SHORT
400µs/div
IIN
2A/div
VOUT
1V/div
IOUT
10A/div
SHUTDOWN WAVEFORM (ILOAD = 8A)
MAX15108A toc09
VEN
2V/div
VLX
5V/div
ILX
5A/div
10µs/div
VOUT
VPGOOD
1V/div
INPUT SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
2.0
1.6
1.2
0.8
0.4
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
RMS INPUT CURRENT
vs. SUPPLY VOLTAGE
1.0
0.9 SHORT-CIRCUIT ON OUTPUT
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
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