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TPS54292 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54292 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 35 page ![]() 1 2 3 4 16 15 14 13 PVDD2 BOOT2 SW2 PGND2 PVDD1 BOOT1 SW1 PGND1 TPS54290 5 6 7 12 11 10 BP GND FB2 EN1 EN2 FB1 V OUT1 V IN UDG-09130 GND 8 9 COMP1 COMP2 V OUT2 TPS54290, TPS54291, TPS54292 www.ti.com SLUS973 – OCTOBER 2009 1.5-A/2.5-A Dual, Fully-Synchronous Buck Converter With Integrated MOSFET Check for Samples :TPS54290 TPS54291 TPS54292 1 FEATURES APPLICATIONS • Set Top Box 2 • 4.5 V to 18 V Input Range • Digital TV • Output Voltage Range 0.8 V to DMAX × VIN • Power for DSP • Fully Integrated Dual Buck, 1.5 A/2.5 A • Consumer Electronics • Three Fixed Switching Frequency Versions: – TPS54290 – 300 kHz DESCRIPTION – TPS54291 – 600 kHz TPS54290/1/2 is a dual output fully synchronous buck – TPS54292 – 1.2 MHz converter capable of supporting applications with a • Integrated UVLO minimal number of external components. It operates from a 4.5 V to 18 V input supply voltage, and • 0.8 VREF With 1% Accuracy (0°C to 85°C) supports output voltages as low as 0.8 V and as high • Internal Soft-Start as 90% of the input voltage. – TPS54290 – 5.2 ms Both high-side and low-side MOSFETs are integrated – TPS54291 – 2.6 ms to provide fully synchronous conversion with higher – TPS54292 – 1.3 ms efficiency. Channel1 can provide up to 1.5 A of continuous current, meanwhile, Channel2 supports • Dual PWM Outputs 180° Out-of-Phase up to 2.5 A. • Dedicated Enable for Each Channel Current mode control simplifies the compensation. • Current Mode Control for Simplified The external compensation adds flexibility for the Compensation user to choose different type of output capacitors. • External Compensation 180° out-of-phase operation reduces the ripple • Pulse-by-Pulse Overcurrent Protection, current through the input capacitor, providing the 2.2 A/3.8 A Overcurrent Limit benefit of reducing input capacitance, alleviating EMI • Integrated Bootstrap Switch and increasing capacitor life. • Thermal Shutdown Protection at 145°C • 16-Pin PowerPAD™ HTSSOP Package 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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