Rosewill Tachyon 750 W Power Supply Review
The +5VSB Power Supply
Contents
The +5VSB (a.k.a. standby) power supply is independent of the main power supply, since it is on continuously.
The +5VSB power supply uses an ICE3B0565 integrated circuit, which incorporates the PWM controller and the switching transistor into a single chip.
Figure 19: The +5VSB integrated circuit with an integrated switching transistor
The rectification of the +5VSB output is performed by a PFR40V60CT Schottky rectifier, which supports up to 40 A (20 A per internal diode at 110° C, 0.55 V maximum voltage drop).
Figure 20: The +5VSB rectifier