MAX767EAP(1994) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX767EAP Datasheet PDF : 20 Pages
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5V-to-3.3V, Synchronous, Step-Down
Power-Supply Controller
__________________________________________Typical Operating Characteristics
(Circuit of Figure 1 (5A configuration), VIN = 5V, oscillator frequency = 300kHz, TA = +25°C, unless otherwise noted.)
EFFICIENCY vs. OUTPUT CURRENT
(1.5A CIRCUIT)
100
EFFICIENCY vs. OUTPUT CURRENT
(3A CIRCUIT)
100
EFFICIENCY vs. OUTPUT CURRENT
(5A CIRCUIT)
100
90
90
90
80
80
80
70
70
70
60
60
60
50
0.001 0.01
0.1
1
10
OUTPUT CURRENT (A)
EFFICIENCY vs. OUTPUT CURRENT
(7A CIRCUIT)
100
90
50
0.001 0.01
0.1
1
10
OUTPUT CURRENT (A)
EFFICIENCY vs. OUTPUT CURRENT
(10A CIRCUIT)
100
90
50
0.001 0.01
0.1
1
10
OUTPUT CURRENT (A)
SWITCHING FREQUENCY vs.
PERCENT OF FULL LOAD
1000
SYNC = REF (300kHz)
100
80
80
10
70
70
1
60
60
0.1
50
0.001 0.01
0.1
1
10
50
0.001 0.01
0.1
1
0.01
10
0.001 0.01 0.1
1
10 100
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
LOAD CURRENT (% FULL LOAD)
IDLE-MODE WAVEFORMS
PWM-MODE WAVEFORMS
3.3V OUTPUT
50mV/div, AC COUPLED
3.3V OUTPUT
50mV/div, AC COUPLED
LX
5V/div
LX
5V/div
ILOAD = 300mA
5µs/div
ILOAD = 5A
1µs/div
_______________________________________________________________________________________ 3
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