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SC4201IMSTRT
P1-P3
P4-P6
P7-P9
P10-P12
7
2004 Semtech Corp.
www
.semtech.com
POWER MANA
GEMENT
SC420
1
Application Information
PWM
= Fsw
L
C
sync
PWM
= Fsw
L
C
sync
PWM
= Fsw
L
C
sync
PWM
= Fsw
L
C
sync
Ph A
Ph B
Ph C
Ph D
SC4201
V
SYNC
RT
GND
DD
Vout1
Vout 4
Vout 2
Vout 3
+3 to 6V
optional 3 or 2/4 Phases
Diagram in Figure 6 shows multi-phase operation of several power converters with fixed switching frequency
FSW.
Figure 6
8
2004 Semtech Corp.
www
.semtech.com
PO
WER MANAGEMENT
SC420
1
PWM
= Fsw
L
sync
PWM
= Fsw
L
C
sync
PWM
= Fsw
L
sync
PWM
= Fsw
L
sync
Ph A
Ph B
Ph C
Ph D
SC4201
V
SYNC
RT
GND
DD
Vout
+3 to 6V
optional 3 or 2/4 Phases
Application Information (Cont.)
Diagram in Figure 7 demonstrates a multi-phase operation of a single power supply with current sharing
through the individual phases and with fixed switching frequency FSW.
Figure 7
9
2004 Semtech Corp.
www
.semtech.com
POWER MANA
GEMENT
SC420
1
L
L
C
L
L
Ph A
Ph B
Ph C
Ph D
SC4201
V
SYNC
RT
GND
DD
Vout
+3 to 6V
optional 3 or 2/4 Phases
Fsw control
PWM
Fsw
sync
~
PWM
Fsw
sync
~
PWM
Fsw
sync
~
PWM
Fsw
sync
~
Application Information (Cont.)
Diagram in Figure 8 assumes variable switching frequency FSW, e.g. resonant power converters. This circuit
will require additional “FSW Control” block, which is a t
ask for a po
wer designer
.
Figure 8
P1-P3
P4-P6
P7-P9
P10-P12
SC4201IMSTRT
Mfr. #:
Buy SC4201IMSTRT
Manufacturer:
Semtech
Description:
Switching Controllers MULTI PHASE LINK CONTROLLER
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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EMS
Payment:
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