Rev 1.0

Page 2 of 26

11/2017

PFM4914xB6M24D0yAz

24V 10A

3.3V 10A

1.8V 8A

ZVS Buck

ZVS Buck

+

_

+

_

+

_

4914 VIA™ PFM

+IN

–IN

+OUT

–OUT

24V

++

+

C

1

C

2

C

3

~

~

+

–

D

1

J

1

85 –

264V

AC

MOV

C

4

Typical PCB Mount Applications

The PCB terminal option allows mounting on an industry standard printed circuit board, with two different pin lengths. Vicor offers a

variety of downstream DC-DC converters driven by the 24V output of the PFM in a VIA package. The 24V output is usable directly by loads

that are tolerant of the PFC line ripple, such as fans, motors, relays, and some types of lighting. Use downstream DC-DC Point of Load

converters where more precise regulation is required.

Parts List for Typical PCB Mount Applications

J1

Delta 06AR2 EMI Filter Entry Module, C14 6A 250V 5 x 20mm fuseholder

F1 (mount in J1)

D1

Fairchild GBPC1210W 12A 1000V PTH

C1, C2, (C3)

Nichicon UVR1V153MRD 15,000µF 35V 4.3A 25 x 50mm bent 90°, x 3pcs

or

CDE 380LX153M035A022 15,000µF 35V 5.6A 35 x 30mm snap in, x 3pcs

or

Sic Safco Cubisic LP A712062 22,000µF 35V 5.8A 45 x 75 x 12mm rectangular, x 2pcs

or

CDE MLPE1566 22,000uF 35V 8.4A 45 x 76 x 12.5mm x 2pcs.

C4

Panasonic ECQ-U2A474ML 0.47µF 275V

MOV

Littelfuse TMOV20RP300E VARISTOR 10kA 300V 250J 20mm