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參數(shù)資料
| 型號(hào)： | VRAH-12F1A0R |
| 廠商： | BEL FUSE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 39.6 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-5 |
| 文件頁數(shù)： | 2/10頁 |
| 文件大小： | 367K |
| 代理商： | VRAH-12F1A0R |
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
3.0 Vdc - 5.5 Vdc Input
0.8 Vdc - 3.63 Vdc/12 A Output
Output Specifications
Parameter
Min
3.234 V
2.45 V
1.764 V
1.47 V
1.176 V
0.882 V
-
-
Typ
3.3 V
2.5 V
1.8 V
1.5 V
1.2 V
0.9 V
±
3 mV
±
4 mV
Max
3.366 V
2.55 V
1.836 V
1.53 V
1.224 V
0.981 V
±
6 mV
±
8 mV
Notes
Output Voltage Set Point
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
Vin=5 V, Io= 50% load
Line Regulation
Load Regulation
Regulation Over Temperature
(-40
°
C to +85
°
C)
Output Current
Current Limit Threshold
-
±
10 mV
±
20 mV
0 A
15 A
-
-
12 A
30 A
0.6 A
2
s
Short Circuit Surge Transient
-
0.3 A
2
s
Test conditions:
0-20 MHz BW; 1 uF ceramic capacitor
and 10 uF aluminum capacitor at the
output.
Ripple and Noise (rms)
-
15 mV
25 mV
Ripple and Noise (pk-pk)
-
50 mV
100 mV
Turn on Time
Overshoot at Turn on
Output Capacitance
Transient Response
50% ~ 100%
Max Load
-
-
5 mS
0%
-
10 mS
3%
4800 uF
330 uF
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
150 mV
30 uS
150 mV
30 uS
250 mV
60 uS
250 mV
60 uS
100% ~ 50%
Max Load
All
Test conditions:
di/dt=0.5 A/us, Vin=5 V, with 330 uF
external load capacitance.
Note:
All specifications are typical at 5 V input, full load at 25
°
C
unless otherwise stated.
General Specifications
Parameter
Min
Efficiency
V
O
=3.3 V
V
O
=2.5 V
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
81%
Efficiency
V
O
=1.8 V
V
O
=1.5 V
V
O
=1.2 V
V
O
=0.9 V
81%
Switching Frequency
250 kHz
90%V
O
Output Trim Range
90%Vo
Remote Sense Compensation
-
Typ
94%
92%
90%
88%
86%
84%
90%
88%
86%
84%
300 kHz
-
-
-
Max
-
-
-
-
-
-
-
-
-
-
350 kHz
403%V
O
110%Vo
0.2 V
Notes
91%
89%
87%
85%
83%
Vin=5 V, full load
87%
85%
83%
Vin=3.3 V, full load
Wide Trim
Narrow Trim
SMD module
Calculated Per Bell Core SR-332
(Vin=5 V; Vo=1.8 V; I
O
= 9.6 A; T
a
= 25
°
C)
MTBF
7,501,004 hours
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