FAN5066 Fairchild Semiconductor, FAN5066 Datasheet - Page 10

• Manufacturer Part Number: FAN5066
• Description: Ultra Low Voltage Synchronous DC-DC Controller
• Manufacturer: Fairchild Semiconductor

FAN5066
Table 3. FAN5066 Application Bill of Materials for DDR VTT
Notes:
1. Inductor L1 is recommended to isolate the 5V input supply from noise generated by the MOSFET switching. L1 may be
Test Circuit
10
Reference
C1–2, C6–C9
C4–5
C10
C11
C OUT
D1
L1
L2
Q1–2
R1
R2-3
R4
R5-6
U1
+5V
omitted if desired.
0.1 F
1 F
+12V
GNDA GNDD GNDP
VCCA
VCCP
Manufacturer Part #
Panasonic
ECU-V1H104ZFX
Panasonic
ECU-V1C105ZFX
Panasonic
ECU-V1H101JCG
Sanyo
6SP680M
Sanyo
4SP820M
Motorola
1N4735A
Coiltronics
UP1B-1R5
Coiltronics
UP4B-1R5
Fairchild
FDS6680S
Any
Any
Any
Any
Fairchild
FAN5066M
47
VCCQP
Figure 3. Output Drive Test Circuit and Timing Diagram
LODRV
HIDRV
4.7
4.7
1 F
Quantity
3000pF
3000pF
Optional
6
2
1
1
4
1
1
2
1
2
1
2
1
Description
100nF, 50V Capacitor
1 F, 16V Capacitor
100pF Capacitor
680 F, 6.3V OSCON
820 F, 4V OSCON
6.2V Zener Diode
1.5 H, 4A Inductor
1.5 H, 13A Inductor
N-Channel MOSFET
w/ Integrated Schottky
47
4.7
10K
499
DC/DC Controller
10%
t
DT1
50%
t
R
50%
90%
ESR < 12m
See Note 1.
R
V
Requirements/Comments
5%, C0G
I
DCR ~ 20m
DCR ~ 4m
RMS
GS
DS(ON)
90%
50%
PRODUCT SPECIFICATION
= 4.5V
= 4.8A
t
F
50%
= 17m @
t
REV. 2.1.4 11/13/01
DT2
10%
HIDRV
LODRV