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TPS53316 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS53316 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 29 page TPS53316 VIN SW VIN Output All MLCCs UDG-11233 PGD CBST PGD FB COMP VREG3 AGND RF/OC EN PS VBST EN PowerPad 2.9 V to 6 V TPS53316 www.ti.com SLUSAP5 – DECEMBER 2011 High-Efficiency, 5-A Step-Down Regulator with Integrated Switcher Check for Samples: TPS53316 1 FEATURES LOW VOLTAGE APPLICATIONS 2 • 96% Maximum Efficiency • Low-Voltage Applications for 5-V Step-Down Rail • Continuous 5-A Output Current Capability • Low-Voltage Applications for 3.3-V Step-Down • Support all MLCC Output Capacitor Rail • SmoothPWM ™ Auto-Skip Eco-mode™ for Light-Load Efficiency DESCRIPTION • Voltage Mode Control TPS53316 provides a fully integrated 3.3-V or 5-V • Single Rail Input input, synchronous buck converter with 16 total components, in 200 mm2 of PCB area. Due to low • Selectable Frequency RDS(on) and TI proprietary SmoothPWM™ skip mode • Selectable OCP Threshold of operation, it enables 96% peak efficiency and over • Selectable Soft-Start Time 90% efficiency at load as light as 100 mA. It requires • 2.9 V to 6.0 V Input Voltage Range only two 22- µF ceramic output capacitors for a power-dense, 5-A solution. • Adjustable Output Voltage Ranging from 0.6 V up to 0.8 × VIN TPS53316 features 750-kHz, 1.1-MHz and 2-MHz switching frequency selections, pre-bias startup, • Soft-Stop Output Discharge During Disable selectable internal softstart, output soft discharge, • Overcurrent, Overvoltage and Internal VBST switch, power good, EN/Input UVLO, Over-Temperature Protection overcurrent, overvoltage, undervoltage and over • Open-Drain Power Good Indication temperature protections and all ceramic output capacitor support. It supports input voltages from 2.9 • Internal Bootstrap Switch V to 6.0 V and no extra bias voltage is needed. The • Supports Pre-Bias Start-Up Functionality output voltage is adjustable from 0.6 V up to 0.8 × • Small 3 × 3, 16-Pin, QFN Package VIN. • Low RDS(on), 22-mΩ with 3.3-V input and 18-mΩ TPS53316 is available in the 3 mm × 3 mm ,16-pin, with 5-V Input QFN package (Green RoHs compliant and Pb free) and is specified from –40°C to 85°C. TYPICAL APPLICATION CIRCUIT 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 Eco-mode, SmoothPWM are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2011, 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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