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參數資料
| 型號： | FAN5193 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Two Phase Interleaved Synchronous Buck Converter |
| 中文描述： | 兩相交錯同步降壓轉換器 |
| 文件頁數： | 9/21頁 |
| 文件大?。?/td> | 524K |
| 代理商： | FAN5193 |
PRODUCT SPECIFICATION
FAN5193
REV. 1.0.1 2/4/02
9
Table 2. FAN5193 Application Bill of Materials for Figure 1
Notes:
1. Inductor L1 is recommended to isolate the 12V input supply from noise generated by the MOSFET switching, and to comply
with Intel dI/dt requirements. L1 may be omitted if desired.
2. For designs using the TO-220 MOSFETs, heatsinks with thermal resistance
θ
SA
< 20
°
C/W should be used. For details and a
spreadsheet on MOSFET selections, refer to Applications Bulletin AB-8.
*Output capacitance requirements depend critically on layout and processor type. Consult Application Bulletin AB-14 for details.
See the Appendix to this datasheet for the method of calculation of these components. Pin 5 must be used to remote sense the
voltage at the processor to achieve the speci
fi
ed performance.
Reference
C1-4
Manufacturer Part #
Panasonic
ECU-V1H104ZFX
Any
Rubycon
16ZL1000M
Rubycon
6.3ZL1500M
Motorola
MBRD835L
Fairchild
MBRS130L
Fairchild
MMBD4148
Any
Quantity
4
Description
Requirements/Comments
100nF, 50V Capacitor
C5
C
IN
1
3
1μF, 25V Capacitor
1000μF, 16V Electrolytic
I
RMS
= 3.8A @ 65
°
C
C
OUT
6
1500μF, 6.3V Electrolytic
ESR
≤
23m
D1-2
2
8A, 35V Schottky Diode
D3-5
3
1A, 30V Schottky Diode
D6
1
Diode
L1
Optional
1.3μH, 14A Inductor
DCR ~ 4m
See Note 1.
DCR ~ 1.5m
R
DS(ON)
= 9m
@ V
GS
= 4.5V
See Note 2.
R
DS(ON)
= 4.5m
@ V
GS
= 4.5V
See Note 2.
L2-3
Q1, Q3
Any
Fairchild
FDB7030B
Fairchild
FDB7045L
Any
Any
Any
Any
Any
Any
Fairchild
FAN5193M
2
2
500nH, 20A Inductor
N-Channel MOSFET
Q2, Q4
2
N-Channel MOSFET
R1, R10-14
R2
R3
R4
R5
R6-9
U1
6
1
1
1
1
4
1
10K
62.2K
2.0K
24.9K
10
4.7
DC/DC Controller
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