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TPS544x25 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS544x25 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 100 page VIN = 12 V No Snubber L = 470 nH fSW = 500 kHz RDCR = 0.3mŸ RBOOT = 0 Ÿ 60 100 Load Current (A) 65 90 0 12 70 80 85 95 75 4 8 16 28 20 24 32 VOUT = 0.5 VOUT = 1.0 VOUT = 1.5 VOUT = 2.5 VOUT = 3.3 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS544C25, TPS544B25 SLUSC81 – MAY 2015 TPS544x25 4.5-V to 18-V, 20-A and 30-A SWIFT™ Synchronous Buck Converters with PMBus™ and Frequency Synchronization 1 1 Features 1 • PMBus 1.2 Compliant Converters: 20 A and 30 A • Input Voltage Range: 4.5 V to 18 V • Output Voltage Range: 0.5 V to 5.5 V • 5 mm × 7 mm LQFN Package • Single Thermal Pad • Integrated 5.5-mΩ and 2.0-mΩ Stacked NexFET™ Power Stage • 500-mV to 1500-mV Reference for Adapative Voltage Scaling (AVS) and Margining through PMBus • 0.5% Reference Accuracy at 600 mV and Above • Lossless Low-Side MOSFET Current Sensing • Voltage Mode Control with Input Feed-Forward • Differential Remote Sensing • Monotonic Start-Up into Pre-Biased Output • Output Voltage and Output Current Reporting • External Temperature Monitoring with 2N3904 Transistor • Programmable via the PMBus interface – VOUT_COMMAND and AVS VOUT Transition Rate – Overcurrent Protection with Thermal Compensation – UVLO, Soft-Start and Soft-Stop – PGOOD, OV, UV, OT Levels – Fault Responses – Turn-On and Turn-Off Delays • Thermal Shutdown • Pin Strapping for Switching Frequency: 200 kHz to 1 MHz • Frequency Synchronization to an External Clock • Footprint Compatible 20-A, 30-A Converters 2 Applications • Test and Instrumentation • Ethernet Switches, Optical Switches, Routers, Base Stations • Servers • Enterprise Storage SSD • High-Density Power Solutions 3 Description The TPS544x25 devices are PMBus 1.2 Compliant, non-isolated DC-DC converters with integrated FETs, capable of high-frequency operation and 20-A or 30-A current output from a 5 mm × 7 mm package. High- frequency, low-loss switching, provided by an integrated NexFET™ power stage and optimized drivers, allows for very high-density power solutions. The PMBus interface enables the AVS through VOUT_COMMAND, flexible converter configuration, as well as key parameters monitoring including output voltage, current and an optional external temperature. Response to fault conditions can be set to either restart, latch-off or ignore depending on system requirements. Device Information DEVICE NAME PACKAGE BODY SIZE TPS544B25RVFT LQFN (40) 5.00 mm × 7.00 mm TPS544C25RVFT LQFN (40) 5.00 mm × 7.00 mm . . Efficiency |
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