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RC5051
PRODUCT SPECIFICATION
8
Table 2. RC5051 Application Bill of Materials for Intel Pentium II Processors
* See Table 3.
Notes:
1. Inductor L1 is recommended to isolate the 5V input supply from noise generated by the MOSFET switching, and to comply
with Intel dl/dt requirements. L1 may be omitted if desired.
2. For 14.2A designs using the FDP6030L MOSFETs, heatsinks with thermal resistance
Q
SA
< 20
°
C/W should be used. For
details and a spreadsheet on MOSFET selections, refer to Applications Bulletin AB-8.
Reference
C1–3, C6–C8
Manufacturer Part #
Panasonic
ECU-V1H104ZFX
Panasonic
ECU-V1C105ZFX
Panasonic
ECU-V1H101JCG
Sanyo
10MV1200GX
Sanyo
6MV1500GX
Motorola
1N4735A
Motorola
1N5820
Skynet
320-6110
Any
Fairchild
FDP6030L or FDB6030L
Any
Any
Any
Fairchild
RC10-XX*
Fairchild
RC5051M
Quantity
6
Description
100nF, 50V Capacitor
Requirements/Comments
C4–5
2
1
m
F, 16V Capacitor
C
ext
1
100pF Capacitor
5%, C0G
C
IN
*
1200
m
F, 10V Electrolytic
I
RMS
= 2A
C
OUT
*
1500
m
F, 6.3V Electrolytic ESR < 44m
W
D1
1
6.2V Zener Diode
D2
1
3A Schottky Diode
L1
1
2.5
m
H, 11A Inductor
DCR ~ 6m
W
See Note 1.
DCR ~ 3m
W
R
DS(ON)
= 20m
W
@
V
GS
= 4.5V See Note 2
L2
Q1–2
1
2
2.3
m
H, 15A inductor
N-Channel MOSFET
(TO-220 or TO-263)
47
W
4.7
W
10K
W
CuNi Alloy Wire Resistor
R1
R2-3
R4
R
SENSE
1
2
1
1
U1
1
DC/DC Controller