Not Recommended for New Designs
VTM Current Multiplier
V048x320y009A
S
C
NRTL US
High Efficiency, Sine Amplitude Converter™
FEATURES
DESCRIPTION
The VI Chip current multiplier is a high efficiency (>96%)
Sine Amplitude Converter™ (SAC) operating from a
26 to 55 Vdc primary bus to deliver an isolated output. The
Sine Amplitude Converter offers a low AC impedance beyond
the bandwidth of most downstream regulators; therefore
capacitance normally at the load can be located at the input to
the Sine Amplitude Converter. Since the K factor of the
V048x320y009A is 2/3, the capacitance value can be reduced
by a factor of 2.25, resulting in savings of board area, materials
and total system cost.
• 48 Vdc to 32 Vdc 9.4 A current multiplier
- Operating from standard 48 V or 24 V PRM® Regulators
• High efficiency (>96%) reduces system power
consumption
• High density (32 A/in3)
• “Full Chip” VI Chip® package enables surface mount,
low impedance interconnect to system board
• Contains built-in protection features against:
- Overvoltage Lockout
- Overcurrent
- Short Circuit
- Overtemperature
The V048x320y009A is provided in a VI Chip package
compatible with standard pick-and-place and surface mount
assembly processes. The co-molded VI Chip package provides
enhanced thermal management due to a large thermal
interface area and superior thermal conductivity. The high
conversion efficiency of the V048x320y009A increases overall
system efficiency and lowers operating costs compared to
conventional approaches.
• Provides enable/disable control,
internal temperature monitoring
• ZVS/ZCS resonant Sine Amplitude Converter topology
The V048x320y009A enables the utilization of Factorized
Power Architecture™ which provides efficiency and size
benefits by lowering conversion and distribution losses and
promoting high density point of load conversion.
• Less than 50ºC temperature rise at full load
in typical applications
TYPICAL APPLICATIONS
(NOM)
VIN = 26 to 55 V
IOUT = 9.4 A
K = 2/3
• High End Computing Systems
• Automated Test Equipment
• High Density Power Supplies
• Communications Systems
(NO LOAD)
VOUT = 17.3 to 36.7 V
PART NUMBERING
PART NUMBER
PACKAGE STYLE
PRODUCT GRADE
T = -40 to 125°C
M = -55 to 125°C
F = J-Lead
y
V048 x 320 009
A
T = Through hole
For Storage and Operating Temperatures see Section 6.0 General Characteristics
TYPICAL APPLICATION
Regulator
Voltage Transformer
VC
TM
VC
PC
L
PR
SG
OS
CD
PC
TM
IL
VTM®
PRM®
Regulator
(See Application Note AN:024)
O
A
Transformer
+Out
+Out
+In
+In
D
VIN
-Out
-Out
-In
-In
Factorized Power ArchitectureTM
VTM® Current Multiplier
Page 1 of 18
Rev 1.0
vicorpower.com
800 927.9474
01/2014
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