TPS544B20RVFT

The TPS544B20 and TPS544C20 devices are PMBus-compatible non-isolated DC/DC integrated FET converters supporting high-frequency operation with 20A or 30A output current in a 5mm×7mm package, enabling high power density and fast transient performance with minimal PCB area. The PMBus interface is used for converter configuration and monitors key parameters including output voltage, current, and an optional external temperature. High-frequency, low-loss switching provided by integrated NexFET power stages and optimized drivers enables ultra-high-density power solutions with reduced inductor and filter capacitor sizes. Fault responses can be configured for restart or latch-off based on system requirements.

Applications

• Test and measurement instruments
• Ethernet switches, optical switches, routers, base stations
• Servers
• Enterprise-grade storage SSDs
• High-density power solutions

Key features

• PMBus-enabled converters: 20A, 30A
• 4.5V to 18V input, 0.6V to 5.5V output
• 5mm x 7mm thin LQFN package, 0.5mm solder ball pitch, single thermal pad
• Integrated 4.5mΩ and 2.0mΩ stacked NexFET power stage
• 600mV, 0.5% reference
• Lossless, low-side MOSFET current sensing
• Selectable D-CAP and D-CAP2 mode control
• Differential remote sensing
• Single startup to pre-biased output
• Output voltage margining and trimming
• Output voltage and output current reporting
• External temperature monitoring using 2N3904
• Programmable via PMBus
• Overcurrent protection
• UVLO, soft-start
• PGOOD, OV, UV, OT levels
• Fault response turn-on and turn-off delay
• Thermal shutdown pin
• Compatible with 20A, 30A converters