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TPS53127PWR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS53127PWR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 29 page TPS53127 www.ti.com SLVSA93 – MARCH 2010 DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS Check for Samples: TPS53127 1 FEATURES • 700-kHz Switching Frequency 2 • D-CAP2™ Mode Control • Cycle-by-Cycle Over-Current Limiting Control – Fast Transient Response • 30-mV to 300-mV OCP Threshold Voltage – No External Parts Required for Loop • Thermally Compensated OCP by 4000 ppm/°C Compensation at ITRIP – Compatible With Ceramic Output APPLICATIONS Capacitors • Point-of-Load Regulation in Low Power • High Initial Reference Accuracy (±1%) Systems for Wide Range of Applications • Low Output Ripple – Digital TV Power Supply • Wide Input Voltage Range: 4.5 V to 24 V – Networking Home Terminal • Output Voltage Range: 0.76 V to 5.5 V – Digital Set-Top Box (STB) • Low-Side RDS(ON) Loss-Less Current Sensing – DVD Player/Recorder • Adaptive Gate Drivers with Integrated Boost – Gaming Consoles Diode • Adjustable Soft Start • Non-Sinking Pre-Biased Soft Start DESCRIPTION The TPS53127 is a dual, adaptive on-time D-CAP2™ mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment's power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53127 uses the D-CAP2™ Mode topology which provides a very fast transient response with no external component. The TPS53127 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. The part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to 5.5 V. The TPS53127 is available in the 24 pin RGE/PW package, and is specified from –40°C to 85°C ambient temperature range. 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 D-CAP2 is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2010, 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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