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Número de pieza
componentes Descripción
MC33680 Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
MC33680
Dual DC−DC Regulator for Electronic Organizer
ON Semiconductor
MC33680 Datasheet PDF : 14 Pages
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MC33680
Cycle Starts
VREF
Feedback Voltage
t
dl
M1 ON
t
dh
M2 OFF
I
pk
M1 OFF
M2 ON
M1 ON
M2 OFF
T
ON
Loading Current, I
LOAD
Coil Current
T
SW
VMAIN
VMAIN + 1 V
M1 OFF
M2 ON
M1 ON
M2 OFF
M1 OFF
M2 ON
V@SW
0V
VMAIN Zoom−In
Feedback Voltage
VREF
t
dl
Figure 19. Waveforms of Continuous Conduction Mode
Cycle Starts
M1 ON
M2 OFF
M1 OFF
t
dh
M1 ON
M2 OFF
M1 OFF
M1 ON
M2 OFF
I
pk
T
ON
Loading Current, I
LOAD
Coil Current
VMAIN + 1 V
VMAIN
V@SW
T
SW
V
IN
0V
VMAIN Zoom−In
Figure 20. Waveforms of Discontinuous Conduction Mode
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11
M1 OFF
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