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LM10520 データシート(PDF) 1 Page - Texas Instruments |
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LM10520 データシート(HTML) 1 Page - Texas Instruments |
1 / 40 page LM10520 www.ti.com SNVS638 – NOVEMBER 2010 LM10520 Single-Phase Buck Controller for AVS Systems Check for Samples: LM10520 1 FEATURES DESCRIPTION The LM10520 is a single-phase Energy Management 23 • Typical Power Savings with AVS: 20 to 50% Unit (EMU) that actively reduces system-level power • PWI 2.0 Interface consumption by utilizing a continuous, real-time, • 7-Bit AVS Control for One Output (Typical closed-loop Adaptive Voltage Scaling (AVS) scheme. Range of 0.6V to 1.2V) The AVS technology enables optimum energy management delivery to the load in order to maximize • Precision Enable system-level energy savings. • Integrated, Non-Overlapping NFET Drivers The LM10520 operates cooperatively with • Switching Frequency Over 50 kHz to 1MHz PowerWise™ AVS-compatible ASICs, SoCs, and • Switching Frequency Synchronize Range from processors to optimize supply voltages adaptively 250 kHz to 1MHz over process and temperature variations. The device is controlled via the high-speed serial PWI 2.0 open- • Startup into Pre-Biased Output standard interface. It also supports Dynamic Voltage • Power Stage Input from 1V to 14V Scaling (DVS) using frequency-voltage pairs from • Control stage Input from 3V to 6V pre-characterized lookup tables. • Power Good Flag and Shutdown The LM10520 features a fixed-frequency voltage- • Output Over-Voltage and Under-Voltage mode PWM control architecture which is adjustable Detection from 50 kHz to 1MHz with one external resistor. In addition, the LM10520 allows the switching frequency • Low-Side Adjustable Current Sensing to be synchronized to an external clock signal over • Adjustable Soft Start the range of 250 kHz to 1MHz. This wide range of • Tracking and Sequencing with Shutdown and switching frequency gives the power supply designer Soft-Start Pins the flexibility to make better tradeoffs between component size, cost and efficiency. • TSSOP-28 Package Features include the ability to startup with a pre- APPLICATIONS biased load on the output, soft-start, input under- voltage lockout (UVLO) and Power good (based on • AVS-Enabled FPGAs both under-voltage and over-voltage detection). In • AVS-Enabled ASICs addition, the soft-start pin can be used for implementing precise tracking, for the purpose of sequencing with respect to an external rail. 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 PowerWise is a trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. 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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同様の説明 - LM10520 |
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