SC4201 Datasheet, PDF (6/9 Pages) Semtech Corporation – Multi-Phase Link Controller

SC4201
POWER MANAGEMENT
Application Information (Cont.)
Diagram in Figure 3 assumes variable switching frequency FSW, e.g. resonant power converters. This circuit
will require additional “FSW Control” block, which is a task for a power designer.
VDD
+3 to 6V
Ph A
PWM
L
sync
~ ^Fsw
SYNC
Ph B
PWM
L
sync
~ ^Fsw
Fsw control ^RT
Ph C
PWM
L
sync
~ ^Fsw
Vout
C
GND
Ph D
PWM
L
sync
~ ^Fsw
SC4201
optional 3 or 2/4 Phases
Figure 3
 2002 Semtech Corp.
6
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