MB3778 Datasheet, PDF (18/29 Pages) Fujitsu Component Limited. – Switching Regulator Controller

MB3778
s SYNCHRONIZATION OF ICs
A fixed condenser and resistor are inserted in the CT and RT terminals of IC which becomes a master when
synchronizing by using plurality of MB3778. As a result, the slave ICs oscillate automatically. The RT terminals
(pin 2) of the slave ICs are connected to the VREF terminal (pin 16) to disable the charge/discharge circuit for
triangular wave oscillation. The CT terminals of the master and slave ICs are connected together.
• Connection of Master, Slave
MB3778
VCC
(MASTER)
CT
RT
MB3778
(SLAVE)
MB3778
(SLAVE)
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