POWER CONVERTER TOPOLOGY and MOSFET SELECTION FOR 48-V TELECOM APLICATIONS ELECTRONIC CIRCUIT DIAGRAMOutput voltages are frequently 5V and below with 3.3V probably the most common requirement, and 2.5V gaining in popularity. If a processor is on the card, voltages as low as 1.3V are not unlikely. One common approach is to regulate a distributed power bus, say the 5V rail, and then use
