VI Chip® PRM® Modules Description ® PRM® Modules enable power architects to maximize the density and performance of their high power designs. The integration of a high performance Zero-Voltage Switching (ZVS) topology with custom magnetics results in a fully integrated buck-boost regulator with over 97% efficiency. With wide input voltage ranges optimized for 24, 36, 45, and 48 Volt inputs these regulators provide a regulated 48 Volt output which can be trimmed across a wide output range. Full sized packages (32.5 x 22 x 6.73 mm) can convert up to 600 Watts of power, also available in half-sized packages (22 x 16.5 x 6.73 mm) up to 250 Watts. Higher power conversion can be achieved by arraying modules together. Use of a ZVS topology enables high-frequency operation that maximizes efficiency by minimizing the significant switching losses associated with conventional buck regulators using hard switching topologies. High switching frequency also reduces the size of the external filter components, providing power density while enabling fast dynamic response to line and load transients C S US C NRTL Features Simple to Use n Point-of-load, ZVS Buck-Boost regulation n Factorized Power Architecture n Minimal external components High Density n Up to 2,040 W/in3, with 600 W in 1.1in2 package n Wide Vin Optimized for 48 Vout 24 Vin, 18 – 36 Vin range 36 Vin, 18 – 60 Vin range 45 Vin, 38 – 55 Vin range 48 Vin, 36 – 75 Vin range High Efficiency n Full Chip: Up to 600 W at 97.6% n Half Chip: Up to 250 W at 96.7% MILCOTS version are also available. See our website for more information. www.vicorpower.com Flexible n Regulation: Remote sense, local loop, adaptive loop n Parallel capable PRM Model Number* Input Voltage Nom. Range Output Voltage Range Output Power Max. Output Current Max. Package (V) (V) (V) P024F048T12AL 24 18 – 36 26 – 55 120 2.5 Full P036F048T12AL 36 18 – 60 26 – 55 120 2.5 Full PRM48AH480T200A00 48 36 – 75 20 – 55 200 6.3 Half PRM48AF480T400A00 48 36 – 75 20 – 55 400 8.3 Full PRM48BH480T200B00 48 38 – 55 5 – 55 200 5.5 Half PRM48DH480T250B03 48 38 – 60 5 – 55 200 5.5 Half PRM48BH480T250A00 48 38 – 55 20 – 55 250 7.3 Half PRM48JH480T250A00 48 45 – 55 20 – 55 250 7.3 Half PRM48JH480T250A02 48 45 – 55 20 – 55 250 7.3 Half PRM48BF480T400B00 48 38 – 55 5 – 55 400 11.0 Full PRM48BF480T500A00 48 38 – 55 20 – 55 500 14.5 Full PRM48JF480T500A00 48 45 – 55 20 – 55 500 14.5 Full PRM48BF480T600A00 48 38 – 55 5 – 55 600 16.5 Full *Full-chip models also available in through hole. All models available in M grade. (W) (A) Configurable at vicorpower.com vicorpower.com Rev 1.3 8/2015 US Application Examples Figure 1: Stand Alone PRM ENABLE VAUX REF/ REF_EN TRIM RTRIM AL VT SHARE/ CONTROL NODE VC SGND IFB F1 VIN +IN VOUT 20 V to 55 V +OUT CIN COUT –IN –OUT SGND GND SGND Figure 2: Remote Sense Voltage Sense and Error Amplifier (Single Ended) C2 C1 RSS REF 3312 PRM IN SGND SGND 10 k GND ENABLE AL VT SHARE/ CONTROL NODE VC R1 SGND CSS SGND V+ V– VOUT SGND +IN +IN –IN RS +OUT CIN VOUT External Current Sense and Feedback –IN R2 Voltage Reference with Soft Start IFB VIN VREF VREF VAUX REF/ REF_EN TRIM ON/OFF CONTROL OUT R3 COUT –OUT SGND GND SGND Figure 3 : Array PRM 1 MASTER ENABLE VAUX REF/ REF_EN TRIM AL VT SHARE/ CONTROL NODE VC IFB VIN F1 +IN LIN 1 +OUT –IN CIN SGND VOUT 48 V LF 1 –OUT GND SGND 1 GND PRM 2 SLAVE ENABLE VAUX SGND COUT REF/ REF_EN TRIM AL VT SHARE/ CONTROL NODE VC LOAD IFB F2 LIN 2 +IN +OUT –IN –OUT SGND LF 2 GND 1Ω SGND 2 SGND 1 vicorpower.com Rev 1.3 8/2015