Description

The PRM is a very efficient non-isolated regulator capable of both boosting and bucking a wide range input voltage and provides a regulated, adjustable output voltage or “Factorized Bus”. PRMs can be used stand-alone as non-isolated voltage regulators or combined with VTMs for a complete isolated, DC-DC solution with higher efficiency and power density. The VTM provides point-of-load, fixed ratio voltage transformation with extremely fast transient response and isolation to 2,250 Vdc.

Additional features include:

  • Small footprint
  • Low weight
  • Bulk capacitance elimination
  • Through hole option available, except in half-chip package

Full-chip and half-chip models are compatible with standard pick-and-place and surface mount assembly processes.

Full-Chip PRM:
  • Input Voltages:
    24 V (18 – 36 V)
    36 V (18 – 60 V)
    45 V (38 – 55 V)
    48 V (36 – 75 V)
  • Output Voltage: 48 V
  • Output Power: 120 – 500 W
  • Efficiency: Up to 97%
Half-Chip PRM:
  • Input Voltage: 48 V (36 – 75 V)
  • Output Voltage: 48 V (5 – 55 V)
  • Output Power: 250 W
  • Efficiency: Up to 97%
Full-Chip VTM:
  • Input Voltage: 26 – 55 V
  • Output Voltage: 0.7 – 55 V
  • Output Current Max.: 6 – 130 A
  • Efficiency: Up to 97%
Half-Chip VTM:
  • Input Voltage: 26 – 55 V
  • Output Voltage: 0.8 – 13.8 V
  • Output Current Max.: 10 – 50 A
  • Efficiency: Up to 97%
Dimensions per module:
  • Full-Chip: 1.28″ x 0.87″ x 0.265″(32.5 x 22.0 x 6.73 mm)
  • Half-Chip: 0.87″ x 0.65″ x 0.265″(22.0 x 16.5 x 6.73 mm)

Features

Full / Half-Chip PRM

  • Non-isolated, regulator
  • 500 W in 1.1 in2 package
  • 250 W in 0.56 in2 footprint
  • ZVS buck-boost topology
  • ZVS, >1 MHz switching frequency
  • Power density >1,700 W/in3

Full / Half-Chip VTM

  • Isolated, voltage transformer
  • Up to 130 A in 1.1 in2
  • ZVS, ZCS, >1 MHz switching frequency

Data Sheet Matrix

PRM Matrix
All PRM models are 48 Vout* Extreme trim range, 5 – 55 V
Input
Voltage (V)		 Output Power (W)
120 200 250 400 500
24
(18 – 36)		 P024x048T12AL — — — —
36
(18 – 60)		 P036x048T12AL
PR036A480x012xP		 — — — —
45
(38 – 55)		 — — — PR045A480x040xP —
48
(38 – 55)		 — PRM48BH480T200A00 PRM48BH480x250A00 PRM48Bx480T400A00 PRM48Bx480x500A00
48
(36 – 75)		 — PRM48AH480x200A00 — PRM48Ax480x400A00 —
48
(38 – 60)		 PRM48DH480T250B03 — — —
48
(45 – 55)		 — — PRM48JH480x250A00
PRM48JH480x250A02		 — PRM48Jx480x500A00

MIL-COTS PRM
MP028x036M12AL
MPRM48NH480M250A00
MPRM48Nx480M500A00

VTM Current Multiplier Output voltage range depends on selected upstream PRM regulator.
All VTM models are 48 V IN

1.5
(0.81 – 1.72)——VTM48RP015x050AB1
VTM48EH015x050A00VTM48EF015T115A003
(1.63 – 3.43)——VTM48Ex030x070A00—6
(3.25 – 6.87)—VTM48EH060x020A00
VTM048Ex060x040A00——9.6
(6.40 – 11)—VTM48Ex096x025A00——16
(8.67 – 18.3)VTM48Ex160x015A00———32
(17.3 – 36.7)VTM48Ex320x009A00———

Output Voltage (V) Output Current (A)
0 – 15 20 – 40 50 – 90 100 +
1.0
(0 – 1.25)		 — — — VTM48MP010x107AA10
1.2
(0.65 – 1.37)		 — — — VTM48EF012T130B01
2
(1.08 – 2.29)		 — VTM48EH020x040A00 VTM48KP020X088AA1
VTM48Ex020x080A00		 —
4
(2.17 – 4.58)		 — VTM48EH040x025B00 VTM48Ex040y050B0R
VTM48Ex040x050B00		 —
8
(4.34 – 9.16)		 — VTM48Ex080x030A00 — —
12
(6.50 – 13.8)		 VTM48EH120x010B00 VTM48Ex120x025A00
VTM48Ex120y025A0R		 — —
24
(13.8 – 26.5)		 VTM48Ex240x012A00 — — —
48
(26 – 55)		 VTM48Ex480x006A00 — — —

MIL-COTS MVTM36 Series

Full-Chip PRM
  • cURus – UL 60950-1, CSA 60950-1
  • cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
  • CE Marked – Low Voltage Directive (2006/95/EC) and RoHS Recast Directive (2011/65/EU)
  • CB Certificate – IEC 60950-1:2005
Half-Chip PRM
  • cURus – UL 60950-1, CSA 60950-1
  • cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
  • CE Mark – Low Voltage Directive (2006/95/EC) and RoHS Recast Directive (2011/65/EU)
  • CB Certificate – IEC 60950-1:2005
Full- Chip VTM
  • cURus – UL 60950-1, CSA 60950-1
  • cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
  • CE Marked – Low Voltage Directive (2006/95/EC) and RoHS Recast Directive (2011/65/EU)
  • CB Certificate – IEC 60950-1:2001
Half -Chip VTM
  • cURus – UL 60950-1, CSA 60950-1
  • cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
  • CE Marked – Low Voltage Directive (2006/95/EC) and RoHS Recast Directive (2011/65/EU)
  • CB Certificate – IEC 60950-1:2001
High current VTM
  • cURus – UL 60950-1, CSA 60950-1
  • cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
  • CE Marked – Low Voltage Directive (2006/95/EC) and RoHS Recast Directive (2011/65/EU)
  • CB Certificate – IEC 60950-1:2005
0623, 1323 VTM
  • cURus – UL 60950-1, CSA 60950-1
  • cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
  • CE Marked – Low Voltage Directive (2006/95/EC) and RoHS Recast Directive (2011/65/EU)
  • CB Certificate – IEC 60950-1:2005
Baseplated VI Bricks PRM
  • cTÜVus – EN 60950-1, UL 60950-1, CSA 60950-1
  • CE Marked – Low Voltage Directive (2006/95/EC) and RoHS Recast Directive (2011/65/EU)
  • CB Certificate – IEC 60950-1:2005

All V•I Chips are RoHS Compatible
Description Lead Type Product Outline Drawing 3-D Model Drawing
Full-Chip PRM-AL
Full-Chip PRM-AL with J-Lead mounting J-Lead PDF | DXF IGS | SAT | STP
Full-Chip PRM-AL with through-hole mounting Through-Hole PDF | DXF IGS | SAT | STP
Full-Chip PRM-RS
Full-Chip PRM-RS with J-Lead mounting J-Lead PDF | DXF IGS | STP
Full-Chip PRM-RS with through-hole mounting Through-Hole PDF | DXF IGS | STP
Half-Chip PRM-RS
Half-Chip PRM-RS with J-Lead mounting J-Lead PDF | DXF IGS | STP
Baseplate VI Brick PRM
Baseplate VI Brick PRM Flanged PDF | DXF
Full-Chip VTM
Full-Chip VTM with J-Lead mounting J-Lead PDF | DXF IGS | STP
Full-Chip VTM with through-hole mounting Through-Hole PDF | DXF IGS | STP
Full-Chip High Current VTM
Full-Chip VTM with J-Lead mounting J-Lead PDF | DXF IGS | STP
Half-Chip VTM
Half-Chip VTM with J-Lead mounting J-Lead PDF | DXF IGS | STP
Baseplate VI Brick VTM
Baseplate VI Brick VTM Flanged PDF | DXF

Evaluation Boards

Factorized Power Architecture The PRM and VTM Customer Evaluation Boards allow the user to develop an understanding of Factorized Power Architecture (FPA™) using the PRM and VTM chip set. Simply select the PRM Evaluation Board to match your input voltage and VTM Evaluation Board to provide the desired output voltage and current and plug them together.

The customer evaluation boards are equipped with test sockets, trim pots, and convenient input and output connections to allow the user to fully explore the capabilities of the PRM and VTM modules. A detailed User Guide is available.

PRM Regulator Customer Evaluation Board
Full Chip
P/N Input
Voltage (V)		 Output
Voltage (V)		 Output
Power (W)		 User Guide
PRD48AF480T400A00 36 – 75 20 – 55 400 PDF
PRD48BF480T500A00 38 – 55 20 – 55 500 PDF
PRD48JF480T500A00 45 – 55 20 – 55 500 PDF
Half Chip
P/N Input
Voltage (V)		 Output
Voltage (V)		 Output
Power (W)		 User Guide
PRD48BH480T250A00 38 – 55 20 – 55 250 PDF
PRD48AH480T200A00 36 – 75 20 – 55 200 PDF
PRD48JH480T250A00 45 – 55 20 – 55 250 PDF

VTM Current Multiplier Customer Evaluation Board
Full Chip
P/N
Input
Voltage (V)
Output
Voltage (V)
Output
Current (A)
User Guide
VTD48EF012T130B01
26 – 55
0.65 – 1.37
130
VTD48EF015T115A00
26 – 55
0.81 – 1.71
115
VTD48Ex020x080A00
26 – 55
1.09 – 2.29
80
VTD48Ex030X070A00
26 – 55
1.63 – 3.43
70
VTD48Ex040y050B0R
26 – 55
2.17 – 4.58
50
VTD48Ex040x050B00
26 – 55
2.17 – 4.58
40
VTD48Ex060x040A00
26 – 55
3.25 – 6.87
30
VTD48Ex080x030A00
26 – 55
4.34 – 9.16
25
VTD48Ex096x025A00
26 – 55
6.40 – 11.0
25
VTD48Ex120x025A00
26 – 55
6.5 – 13.8
15
VTD48Ex120y025A0R
26 – 55
6.5 – 13.8
12
VTD48Ex160x015A00
26 – 55
8.67 – 18.3
9
VTD48Ex240x012A00
26 – 55
13.8 – 26.5
6
VTD48Ex320x009A00
26 – 55
17.3 – 36.7
6
VTD48Ex480x006A00
26 – 55
26.0 – 55.0
6
Half Chip
P/N
Input
Voltage (V)
Output
Voltage (V)
Output
Current (A)
User Guide
VTD48EH015x050A00
26– 55
0.81 – 1.72
50
VTD48EH020x040A00
26– 55
1.08 – 2.29
40
VTD48EH040x025B00
26– 55
2.17 – 4.58
25
VTD48EH060x020A00
26– 55
3.25 – 6.0
20
VTD48EH120x010B00
26– 55
6.5 – 13.8
10

 

The PRM CC board can be used to provide adjustable current up to 240 W (5 A at 48 V) when employed as a standalone non–isolated source or can be combined with a range of VTM™ current multipliers to provide an adjustable isolated current up to 130 A.

The board has Kelvin connections for measuring the efficiency of the V•I Chip components independent of load losses. Oscilloscope probe jacks are available for measuring output voltage, including output voltage ripple. The board is equipped with fused PRM module inputs, system enable and disable, and option for mounting a V•I Chip pushpin heat sink. For more details, see the Constant Current (CC) Demonstration Board User’s Guide (UG: 007) and Application Note:018, Providing a Constant Current for Powering LEDs using the PRM and VTM.

P/N Input
Voltage (V)		 Output
Voltage (V)		 Output
Power (W)		 User Guide
P048F048T24AL-CC 36 – 75 26 – 55 240 PDF

  • QPI-9-CB1 Carrier Board – Compatible with 24 V Input V•I Chip “-CB” Boards, up to 6 Amps
  • QPI-11-CB1 Carrier Board – Compatible with 24 V Input V•I Chip Module “-CB” Boards, up to 7 Amps
  • QPI-12-CB1 Carrier Board – Compatible with 48 V input V•I Chip Module “-CB” Boards, up to 7 Amps

AN:008 – V•I Chip Bus Converter Module (BCM) Thermal Management Application Note

For Full Chip All Heat Sinks are RoHS Compatible
Description Fin
Height		 P/N Product Assembly Drawing Product Outline Drawing 3-D Model Drawing
Transverse Fins 11 mm 34072 * PDF PDF | DXF IGS | SAT | STP
Transverse Fins 6.3 mm 34073 * PDF PDF | DXF IGS | SAT | STP
Longitudinal Fins 11 mm 34074 * PDF PDF | DXF IGS | SAT | STP
Longitudinal Fins 6.3 mm 34075 * PDF PDF | DXF IGS | SAT | STP
* Push pins not included
For Half Chip All Heat Sinks are RoHS Compatible
Description Fin
Height		 P/N Product Assembly Drawing Product Outline Drawing 3-D Model Drawing
Transverse Fins 11 mm 32784 * PDF PDF | DXF IGS | SAT | STP
Transverse Fins 6.3 mm 32786 * PDF PDF | DXF IGS | SAT | STP
Longitudinal Fins 11 mm 32783 * PDF PDF | DXF IGS | SAT | STP
Longitudinal Fins 6.3 mm 32785 * PDF PDF | DXF IGS | SAT | STP
* Push pins not included

Push Pins For Full-Size V•I Chip Modules (100 pieces per package)
All Heat Sinks are RoHS Compatible
Pin Size P/N Product Assembly Drawing Product Outline Drawing
0.051″ – 0.069″ PCB 32434 PDF PDF
0.070″ – 0.104″ PCB 32435 PDF PDF
0.105″ – 0.132″ PCB 32436 PDF PDF
0.133″ – 0.156″ PCB 32437 PDF PDF
All Heat Sinks are RoHS Compatible
Pin Size P/N Product Assembly Drawing Product Outline Drawing
0.051″ – 0.069″ PCB 33622 PDF PDF
0.070″ – 0.104″ PCB 33623 PDF PDF
0.105″ – 0.132″ PCB 33624 PDF PDF

0.133″ – 0.156″ PCB 33625 PDF PDF