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TPS51113DRCR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS51113DRCR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page 1 FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION CIRCUIT 1 2 3 4 10 9 8 7 PGOOD VOS FB COMP_EN BOOT SW HDRV LDRV_OC TPS51113\TPS51163 5 6 VDD GND 11 R6 C4 R4 R1 R3 C3 D1 VDD C5 V OUT C2 R2 C1 Enable R5 R BIAS R OC L1 V IN Q1 Q2 C6 C7 – + UDG-08105 V OUT TPS51113, TPS51163 www.ti.com........................................................................................................................................................................................................ SLUS864 – MAY 2009 SYNCHRONOUS BUCK CONTROLLER WITH HIGH-CURRENT GATE DRIVER • Flexible Power Rails: 5 V to 12 V The TPS51113 and TPS51163 are cost-optimized, feature rich, single-channel synchronous-buck • Reference: 800 mV ± 0.8% controllers that operates from a single 4.5-V to 13.2-V • Voltage Mode Control supply and can convert an input voltage as low as • Support Pre-biased Startup 1.5 V. • Programmable Overcurrent Protection with The controller implements voltage mode control with Low-Side RDS(on) Current Sensing a fixed 300-kHz (TPS51113) and 600-kHz • Fixed 300-kHz (TPS51113) and 600-kHz (TPS51163) switching frequency. The overcurrent (TPS51163) Switching Frequency (OC) protection employs the low-side RDS(on) current sensing and has user-programmable threshold. The • UV/OV Protections and Power Good Indicator OC threshold is set by the resistor from LDRV_OC • Internal Soft-start pin to GND. The resistor value is read when the • Integrated High-Current Drivers Powered by over-current programming circuit applies 10 µA of VDD current to the LDRV_OC pin during the calibration phase of the start-up sequence. • 10-Pin 3 × 3 SON Package The TPS51113/TPS51163 also supports output pre-biased startup. • Server and Desktop Computer Subsystem The strong gate drivers with low deadtime allow for Power Supplies (MCH, IOCH, PCI, Termination) the utilization of larger MOSFETs to achieve higher • Distributed Power Supplies efficiency. An adaptive anti-cross conduction scheme is used to prevent shoot-through between the power • General DC-DC Converters FETs. 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. 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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