PI3749-20-LGIZ Vicor

End of Life Cool-Power ZVS Switching Regulators PI3749-x0 16V to 34V , 12V to 28V , 240W Cool-Power ZVS Buck-Boost IN OUT Product Description Features & Benefits Up to 98.5% efficiency at 800kHz F The PI3749-x0 is high efficiency, wide range DC-DC ZVS SW Buck-Boost regulator. This high density System-in-Package (SiP) Up to 240W of continuous output power integrates controller, power switches, and support components. (for specific conditions) The integration of a high performance Zero-Voltage Switching Fast transient response (ZVS) topology, within the PI3749-x0, increases point of load performance providing best in class power efficiency. The Parallel capable with single wire current sharing PI3749-x0 requires an external inductor, resistive feedback divider External frequency synchronization / interleaving and minimal capacitors to form a complete DC-DC switching High Side Current Sense Amplifier mode buck-boost regulator. General Purpose Amplifier The ZVS architecture also enables high frequency operation while minimizing switching losses and maximizing efficiency. The high Input Over/Undervoltage Lockout (OVLO/UVLO) switching frequency operation reduces the size of the external Output Overvoltage Protection (OVP) lfi tering components, improves power density, and enables very Overtemperature Protection (OTP) fast dynamic response to line and load transients. Fast and slow current limits -40C to 115C operating range (T ) J Excellent light load efficiency 2 Optional I C * functionality & programmability: V margining OUT Fault reporting Enable and SYNCI pin polarity Applications Computing, Communications, Industrial Variable output step up/down voltage regulation Package Information 10mm x 14mm x 2.56mm LGA SiP Typical Application L1 99 5 VIN V VS1 VS2 VOUT V IN OUT 98 4.5 C C IN OUT PGND PGND 97 4 ISP 96 3.5 ISN 95 3 PI3749-00 VDR IMON 94 2.5 PGD VSN R1 93 2 EN VSP SYNC O VDIFF 92 1.5 EAIN 91 1 SYNC I EAO R2 15 20 25 30 35 TRK COMP SGND V (V) IN Efficiency Power Dissipation 2 * I C is a trademark of NXP semiconductor Cool-Power ZVS Switching Regulators Rev 2.1 Page 1 of 27 09/2017 Efficiency (%) Power Dissipation (W)End of Life PI3749-x0 Contents Order Information 3 Applications Information 17 Absolute Maximum Ratings 3 Input / Output Range Limitation 17 Pin Description 4 Output Voltage Trim 17 Package Pin-Out 5 Soft-Start Adjustment and Tracking 17 Large Pin Blocks 5 Inductor Pairing 17 Storage and Handling Information 6 Thermal De-rating 17 Block Diagram 6 Filter Considerations 18 Electrical Characteristics 7 Parallel Operation 19 Performance Characteristics 10Synchronization 19 Efficiency & Power Loss 12Interleaving 19 2 Safe Operating Area 12 I C Addressing 21 2 Thermal De-Rating 13 I C Command Structure 21 2 MTBF 14 I C Parameter Readback 22 Functional Description 15 Fault Monitoring 22 2 Enable 15 I C Volatile Addresses for Parameter Programming 22 Switching Frequency Synchronization 15 MRGN: Margin Control 23 Soft-Start and Tracking 15 Package Drawings 24 Remote Sensing Differential Amplifier 15 Receiving PCB Pattern Design Recommendations 25 Power Good 15 Revision History 26 Output Current Limit Protection 15 Product Warranty 27 Input Undervoltage Lockout 15 Input Overvoltage Lockout 15 Output Overvoltage Protection 15 Overtemperature Protection 16 Pulse Skip Mode (PSM) 16 Variable Frequency Operation 16 2 I C Interface Operation 16 Cool-Power ZVS Switching Regulators Rev 2.1 Page 2 of 27 09/2017