TPS54620RHLR

Description
The TPS54620 in thermally enhanced 3.50 mm × 3.50 mm QFN package is a full featured 17-V, 6-A, synchronous, step-down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs.Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the footprint of the inductor.
The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a standalone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open-drain power good pins.Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway.
There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current.
Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature.
Features
• Integrated 26 mΩ and 19 mΩ MOSFETs
• Split Power Rail: 1.6 V to 17 V on PVIN
• 200-kHz to 1.6-MHz Switching Frequency
• Synchronizes to External Clock
• 0.8 V ±1% Voltage Reference Overtemperature
• Low 2-µA Shutdown Quiescent Current
• Monotonic Start-Up into Prebiased Outputs
• –40°C to 150°C Operating Junction Temperature Range
• Adjustable Slow Start and Power Sequencing
• Power Good Output Monitor for Undervoltage and Overvoltage
• Adjustable Input Undervoltage Lockout Applications
• High Density Distributed Power Systems
• High Performance Point of Load Regulation
• Broadband, Networking and Optical Communications Infrastructure