TPS53219A

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design TPS53219A SLUSAU4B – DECEMBER 2011 – REVISED FEBRUARY 2019 TPS53219A 3-V to 28-V Input, D-CAP, Eco-Mode™, synchronous buck controller 1 Features 1 Conversion input voltage range: 3 V to 28 V VDD input voltage range: 4.5 V to 25 V Output voltage range: 0.6 V to 5.5 V Wide output load range: 0 A to > 20 A Built-in 0.6-V (±0.8%) reference Built-in LDO linear voltage regulator Auto-skip Eco-Mode™ for light-load efficiency D-CAP™ mode with 100-ns load-step response Adaptive ON-time control architecture with 8 selectable frequency settings 4700ppm/°C RDS(on) current sensing 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms selectable internal voltage servo soft start Pre-charged start-up capability Built-in output discharge Open-drain power-good output Integrated boost switch Built-In OVP/UVP/OCP Thermal shutdown (non-latch) 3-mm × 3-mm QFN, 16-Pin (RGT) package 2 Applications Storage computers Server computers Multi-function printers Embedded computing 3 Description The TPS53219A device is a small-sized single buck controller with adaptive ON-time D-CAP mode control. The device is suitable for low output voltage, high current, PC system power rail and similar pointof-load (POL) power supplies in digital consumer products. The small package and minimal pin-count save space on the PCB, while the dedicated EN pin and pre-set frequency selections simpl...