PRM48BF480T400B00 Datasheet, PDF (1/22 Pages) Vicor Corporation – High Efficiency Remote Sense PRM Converter

PRM® Regulator
PRM48BF480T400B00
S
C NRTL US
High Efficiency Remote Sense PRM Converter
FEATURES DESCRIPTION
• 45 V (38 to 55), non-isolated ZVS buck-boost
regulator
• 5 to 55 V adjustable output range
• Building block for high efficiency DC-DC systems
• 400W output power in 1.1 in² footprint
• 97% typical efficiency, at full load
• 1,360 W/in³ (83 W/cm³) Power Density
• Enables a 48 V to 1.5 V, 230 A isolated, regulated
solution with total footprint of 3.3 in² (21 cm²)
• Flexible “Remote Sense” architecture optimizes
regulation / feedback loop design to fit application
requirements
• Current feedback signal allows dynamic adjustment of
current limit setpoint
• 3.61 MHrs MTBF (MIL-HDBK-217Plus Parts Count)
TYPICAL APPLICATIONS
• High Efficiency Server Processor and Memory Power
• High Density ATE System DC-DC Power
• Telecom NPU and ASIC Core Power
• LED Drivers
• High Density Power Supply DC-DC Rail Outputs
• Non-isolated Power Converters
The VI Chip^® PRM^® Regulator is a high efficiency
converter, operating from a 38 to 55 Vdc input to
generate a regulated 5 to 55 Vdc output. The ZVS buck
– boost topology enables high switching frequency (~1
MHz) operation with high conversion efficiency. High
switching frequency reduces the size of reactive
components enabling power density up to 1,360 W/in³.
The full VI Chip package is compatible with standard
pick-and-place and surface mount assembly processes
with a planar thermal interface area and superior thermal
conductivity.
In a Factorized Power Architecture™ system, th_®e
PRM48BF480T400B00 and downstream VTM current
multiplier minimize distribution and conversion losses in
a high power solution.
An external control loop and current sensor maintain
regulation and enable flexibility both in the design of
voltage and current compensation loops to control of
output voltages and currents.
48 V to 1.5 V, 230A Voltage Regulator
Voltage
Control
Enable/
Disable
38 to 55
Vdc Input
PC
PR
TM
+IN
+OUT
TM
PRM
Regulator
-IN
IF RE
-OUT
SG VC
Constant
Vc
Voltage
Reference
Current
Sense
Feedback
PC
+IN
+OUT1
+OUT2
VTM^TM Current
Multiplier
-IN
-OUT1
VC -OUT2
PC
+IN
+OUT1
+OUT2
VTM^TM Current
Multiplier
-IN
-OUT1
VC -OUT2
Load
PRM® Regulator
Rev 1.1
800 927.9474