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部品番号 V048F040T050
部品説明 (V048F040x050) Voltage Transformation Module
メーカ Vicor Corporation
ロゴ Vicor Corporation ロゴ 
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V048F040T050 Datasheet, V048F040T050 PDF,ピン配置, 機能
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VTM
PRELIMINARY
V048F040T050
V•I ChipTM – VTM
Voltage Transformation Module
• 48 V to 4 V V•I Chip Converter
• 50 A (75 A for 1 ms)
• High density – 182 A/in3
• Small footprint – 45 A/in2
• Low weight – 0.5 oz (14 g)
• Pick & Place / SMD
• 125°C operation
• 1 µs transient response
• 3.5 million hours MTBF
• Typical efficiency 94%
• No output filtering required
Vf = 26 - 55 V
VOUT = 2.17 - 4.58 V
IOUT = 50 A
K = 1/12
ROUT = 3.9 mΩ max
©
Actual size
Product Description
The V048F040T050 V•I Chip Voltage Transformation
Module (VTM) excels at speed, density and efficiency to
meet the demands of advanced power applications
while providing isolation from input to output. It
achieves a response time of less than 1 µs and delivers
up to 50 A in a volume of less than 0.274 in3 with
unprecedented efficiency. It may be paralleled to deliver
higher power levels at an output voltage settable from
2.17 to 4.58 Vdc.
The VTM V048F040T050’s nominal output voltage is 4
Vdc from a 48 Vdc input Factorized Bus, Vf, and is
controllable from 2.17 to 4.58 Vdc at no load, and from
1.98 to 4.40 Vdc at full load, over a Vf input range of 26
to 55 Vdc. It can be operated either open- or closed-loop
depending on the output regulation needs of the
application. Operating open-loop, the output voltage
tracks its Vf input voltage with a transformation ratio,
K = 1/12, for applications requiring an isolated output
voltage with high efficiency. Closing the loop back to an
input Pre-Regulation Module (PRM) or DC-DC converter
enables tight load regulation.
The 4 V VTM achieves a current density of 182 A/in3 in
a V•I Chip package compatible with standard pick-and-
place and surface mount assembly processes. The VTM’s
fast dynamic response and low noise eliminate the
need for bulk capacitance at the load, substantially
increasing system density while improving reliability
and decreasing cost.
Absolute Maximum Ratings
Parameter
+In to -In
+In to -In
PC to -In
VC to -In
+Out to -Out
Isolation voltage
Output current
Peak output current
Output power
Peak output power
Case temperature
Values
-1.0 to 60
100
-0.3 to 7.0
-0.3 to 19.0
-0.5 to 12
2,250
50
75
220
330
208
Operating junction temperature(1)
-40 to 125
-55 to 125
Storage temperature
-40 to 150
-65 to 150
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
A
A
W
W
°C
°C
°C
°C
°C
Notes
For 100 ms
Input to Output
Continuous
For 1 ms
Continuous
For 1 ms
During reflow
T - Grade
M - Grade
T - Grade
M - Grade
Note:
(1) The referenced junction is defined as the semiconductor having the highest temperature.
This temperature is monitored by a shutdown comparator.
Part Numbering
V 048
Voltage
Transformation
Module
Input Voltage
Designator
F
Configuration Options
F = On-board (Figure 10)
040
Output Voltage
Designator
(=VOUT x10)
T
050
Output Current
Designator
(=IOUT)
Product Grade Temperatures (°C)
Grade Storage Operating
T -40 to150 -40 to125
M -65 to150 -55 to125
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 1 of 13

--------------------------------------------
V048F040T050 pdf, 電子部品, 半導体, ピン配列
Electrical Specifications (continued)
Waveforms
PRELIMINARY
Figure 1— Input reflected ripple current at full load and 48 Vf.
220
200
180
160
140
120
100
80
0
Ripple vs. Output Current
5 10 15 20 25 30 35 40 45 50
Output Current (A)
Figure 2— Output voltage ripple vs. output current at 48 Vf with no POL
bypass capacitance.
Efficiency vs. Output Current
96
94
92
90
88
86
84
82
0
5 10 15 20 25 30 35 40 45 50
Output Current (A)
Figure 3— Efficiency vs. output current.
Power Dissipation
14
12
10
8
6
4
2
0 5 10 15 20 25 30 35 40 45 50
Output Current (A)
Figure 4—Power dissipation vs. output current.
Figure 5— Output voltage ripple at full load and 48 Vf; with no POL bypass
capacitance.
Figure 6—Output voltage ripple at full load and 48 Vf with 47 µF ceramic
POL bypass capacitance and 20 nH distribution inductance.
vicorpower.com 800-735-6200
V•I Chip Voltage Transformation Module
V048F040T050
Rev. 1.1
Page 3 of 13





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