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參數(shù)資料
| 型號： | VRAH-05E120 |
| 廠商： | BEL FUSE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 6 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, SIP-5 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大小： | 265K |
| 代理商： | VRAH-05E120 |
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
7.0 Vdc - 13.2 Vdc Input
1.2 Vdc - 3.3 Vdc/5 A Output
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
VO=3.3 V
VO=2.5 V
VO=1.8 V
VO=1.5 V
VO=1.2 V
88%
86%
84%
82%
80%
91%
89%
87%
85%
83%
-
Vin=10 V, full load.
Switching Frequency
200 kHz
280 kHz
360 kHz
Output Voltage Trim Range
90%
-
110%
MTBF
TBD
Calculated Per Bell Core SR-332
(Vin=10 V; Vo=3.3 V; IO =5 A; Ta = 25
°C)
Dimensions (surface mount)
Inches (L × W × H)
Millimeters (L × W × H)
0.78 x 0.7 x 0.32
19.81 x 17.78 x 8.13
Dimensions (vertical)
Inches (L × W × H)
Millimeters (L × W × H)
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
Weight
-
5 g
-
Output Trim Equations
Equations for calculating the trim resistor given the desired adjusted voltage (Vadj) and the nominal output
voltage of the converter (Vo) are shown below. The Trim Up resistor should be connected between the Trim pin
and Ground. Only one of the resistors should be used for any given application.
Output Voltage
A
B
C
D
3.3 V
17.2
40.2
53.841
61.7
2.5 V
4.496
5.62
9.556
11.24
1.8 V
3.064
10
3.849
13.83
1.5 V
3.712
5.62
3.254
10.26
1.2 V
3.712
5.62
1.87
10.26
Note: Vo=3.304 V for 3.3 V output voltage; Vo=1.805 V for 1.8 V output voltage; Vo=1.501 V for 1.5 V output
voltage; Vo=1.203 V for 1.2 V output voltage.
Vout
Trim
GND
Rtrim-up
Module
Vout
Trim
GND
Rtrim-down
Module
Kohm
B
Vo
adj
Vo
A
up
Rtrim
)
,
(
_
=
Kohm
D
adj
Vo
C
down
Rtrim
)
,
(
_
=
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