VTM® Current Multiplier
VTM48Kx015y050AB0
PRELIMINARY DATASHEET
High Efficiency Converter
Features
Product Ratings
ZVS / ZCS resonant Sine Amplitude Converter topology
Up to 55 Volts DC input
K of 1/32 provides up to 50 Amps DC
Built-in protection against over-voltage, over-current,
and over-temp conditions.
Enable/disable and monitoring
High efficiency (>94% peak)
High density (233 A/in2)
Input Voltage (VIN)
Output Voltage (VOUT
Transformer Ratio K-factor
Output Current (IOUT
48V nom (0 to 55 V range)
1.5 V nom (from 48V)
(0 to 1.7 V range)
)
1/32
SMT & through-hole 0623 ChiP format, low impedance
interconnect to system board
50A (to 100°C TCASE
65 A (to 85°C TCASE
)
)
)
Output Current Peak (IOUT_PEAK
)
100A (IOUT_AVE < 50A, 25°C TCASE)
Typical Applications
Computing and Telecom Systems
(ASICs, DDR3, DDR4 memory)
Automated Test Equipment
High Density Power Supplies
Communications Systems
Product Description
The VI Chip VTM™ current multiplier is a high efficiency Sine
Amplitude Converter™ (SAC™) operating from a primary bus to
deliver a low voltage output. The SAC™ 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 SAC™. Since the K factor of the
VTM48KP015T050AB0 is 1/32, the capacitance value can be
reduced by a factor of 1024, resulting in savings of board area,
materials and total system cost.
Pin Descriptions
+IN to -IN Input Power
+OUT to -OUT Output Power
EN Enable/Disable, Array Sync
TM Temp Monitor & Power Good Flag
VCC Power-Train Supply
CM Current Monitor
The VTM48KP015T050AB0 is provided in a 0623 ChiP format
compatible with standard pick-and-place surface mount
assembly processes. The higher conversion efficiency of the
VTM48KP015T050AB0 increases overall system efficiency and
lowers operating costs compared to conventional approaches.
Ordering Information
The VTM48KP015T050AB0 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.
VTM48KP015T050AB0
VTM48KR015T050AB0
VTM48KP015M050AB0
VTM48KR015M050AB0
Through hole, T-grade (-40°C to +125°C TCASE
Surface Mount, T-grade (-40°C to +125°C TCASE
Through hole, M-grade (-55°C to +125°C TCASE
)
)
)
Surface Mount, M-grade(-55°C to +125°C TCASE
)
VTM® Current Multiplier
Page 1 of 3
Rev B
03/2014
vicorpower.com
800 735.6200
