TPS54291

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS54290, TPS54291, TPS54292 SLUS973A – OCTOBER 2009 – REVISED NOVEMBER 2016 TPS5429x 1.5-A and 2.5-A Dual, Fully-Synchronous Buck Converter With Integrated MOSFET 1 Features 1 4.5-V to 18-V Input Range Output Voltage Range 0.8 V to DMAX × VIN Fully Integrated Dual Buck: 1.5 A and 2.5 A Three Fixed Switching Frequency Versions: – TPS54290: 300 kHz – TPS54291: 600 kHz – TPS54292: 1.2 MHz Integrated UVLO 0.8 VREF With 1% Accuracy (0°C to 85°C) Internal Soft Start: – TPS54290: 5.2 ms – TPS54291: 2.6 ms – TPS54292: 1.3 ms Dual PWM Outputs 180° Out-of-Phase Dedicated Enable for Each Channel Current Mode Control for Simplified Compensation External Compensation Pulse-by-Pulse Overcurrent Protection, 2.2-A and 3.8-A Overcurrent Limit Integrated Bootstrap Switch Thermal Shutdown Protection at 145°C 16-Pin PowerPAD™ HTSSOP Package 3 Description The TPS54290, TPS54291, and TPS54292 devices are dual-output, fully synchronous buck converters capable of supporting applications with a minimal number of external components. It operates from a 4.5-V to 18-V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage. Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel 1 can provide up to 1.5 A of continuous current. Meanwhile, Channel 2 supports up to 2.5 A...