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參數(shù)資料
| 型號(hào)： | RC5041 |
| 廠商： | Raytheon Company |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Programmable DC-DC Converter for Pentium P55C, K6 and 6x86MX (M2) Processors |
| 中文描述： | 可編程DC - DC轉(zhuǎn)換為奔騰P55C，K6和6x86MX量（M2）處理器 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 119K |
| 代理商： | RC5041 |
RC5041
PRODUCT SPECIFICATION
8
P
Design Considerations and
Component Selection
MOSFET Selection
This application requires N-channel Logic Level Enhance-
ment Mode Field Effect Transistors. Desired characteristics
are as follows:
Low Static Drain-Source On-Resistance,
R
DS(on)
< 20 m
(lower is better)
Low gate drive voltage, V
GS
< 4V
Power package with low thermal resistance
Drain current rating of 20A minimum
Drain-Source voltage > 15V.
The on-resistance (R
DS(ON)
) is the primary parameter for
MOSFET selection. The on-resistance determines the power
dissipation of the MOSFET and therefore significantly
affects the efficiency of the DC-DC Converter. Table 3
provides a list of suitable MOSFETs for this application.
Note:
1. R
DS(ON
) values at T
J
=125
°
C for most devices were extrapolated from the typical operating curves supplied by the
manufacturers and are approximations only. Only National Semiconductor offers maximum values at T
J
= 125
°
C.
Table 3. MOSFET Selection Table
Manufacturer & Model #
Megamos
MiP30N03A
Conditions
1
R
DS, ON
(m
)
Typ.
16
—
25
37
6.1
Package
TO-220
Thermal
Resistance
Φ
JA
= 62
Max.
25
38
37
56
9
14
10
16
19
29
15
24
33
50
15
23
17
26
20
30
18
27
19
29
V
GS
= 4.5V,
I
D
= 6A
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
T
J
= 25
°
C
T
J
= 125
°
C
Fuji
2SK1388
V
GS
= 4V,
I
D
= 20A
TO-220
Φ
JA
= 75
Int. Rectifier
IRL3803
V
GS
= 4.5V,
I
D
= 59A
TO-220
Φ
JA
= 62
Int. Rectifier
IRL2203
V
GS
= 4.5V,
I
D
= 50A
8.2
—
16
—
13
20
22
—
10.5
—
12
—
—
—
—
—
—
—
TO-220
Φ
JA
= 62
Int. Rectifier
IRL3103
V
GS
= 4.5V,
I
D
= 28A
TO-220
Φ
JA
= 62
NS
NDP706A
V
GS
= 5.0V,
I
D
= 40A
TO-220
Φ
JA
= 62
NEC
2SK2941
V
GS
= 4.0V,
I
D
= 18A
TO-220
Φ
JA
= 83
NEC
2SK2984
V
GS
= 4.0V,
I
D
= 20A
TO-220
Φ
JA
= 83
NEC
μ
PA1703
V
GS
= 4.0V,
I
D
= 5A
SO-8
Φ
JA
= 125
Int. Rectifier
IRF7413A
V
GS
= 4.5V,
I
D
= 3.3A
SO-8
Φ
JA
= 125
Int. Rectifier
IRF7413
V
GS
= 4.5V,
I
D
= 3.7A
SO-8
Φ
JA
= 125
Int. Rectifier
IRL3103A
V
GS
= 4.5V,
I
D
= 28A
D
2
PAK
Φ
JA
= 40
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