Регуляторы напряжения - Импульсные регуляторы TPS544B25RVFT

Импульсный понижающий DC-DC стабилизатор , регулируемый, 4.5В-18В (Vin), 500мВ-5.5В, 20А, LQFN-40

The TPS544B25RVFT is a SWIFT™ synchronous Buck Converter with PMBus™ and frequency synchronization. The PMBus 1.2 compliant non-isolated DC-to-DC converter has integrated FETs, capable of high-frequency operation and 20 or 30A current output. 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.

• Single thermal pad
• Integrated 5.5 and 2mR stacked NexFET™ power stage
• 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 - Overcurrent protection with thermal compensation
• UVLO, soft-start and soft-stop

• PGOOD, OV, UV and OT levels
• Fault responses
• Turn-ON and turn-OFF delays
• Thermal shutdown
• Frequency synchronization to an external clock
• 500 to 1500mV Reference for adaptive voltage scaling (AVS) and margining through PMBus
• 0.5% Reference accuracy at 600mV and above

Области применения

Тестирование и Измерение, Связь и Сеть, Управление Питанием