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TPS51211 датащи(PDF) 1 Page - Texas Instruments |
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TPS51211 датащи(HTML) 1 Page - Texas Instruments |
1 / 26 page 1 2 3 4 10 9 8 7 VBST DRVH SW V5IN PGOOD TRIP EN VFB TPS51211 5 6 DRVL TST GND V IN V OUT V OUT_GND EN V5IN UDG-10160 TPS51211 www.ti.com SLUSAA7 – NOVEMBER 2010 HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY 1 FEATURES APPLICATIONS • Notebook Computers 2 • Wide Input Voltage Range: 3 V to 28 V • I/O Supplies • Output Voltage Range: 0.7 V to 2.6 V • System Power Supplies • Wide Output Load Range: 0 to 20A+ • Built-in 0.5% 0.7 V Reference DESCRIPTION • 290-kHz, Adaptive On-Time D-CAP™ MODE The TPS51211 is a small-sized single buck controller Control with adaptive on-time D-CAP™ mode. The device is • 4700 ppm/°C RDS(on) Current Sensing suitable for low output voltage, high current, PC • Internal 1-ms Voltage Servo Soft-start system power rail and similar point-of-load (POL) power supply in digital consumer products. A small • Pre-Charged Start-up Capability package with minimal pin-count saves space on the • Built in Output Discharge PCB, while a dedicated EN pin and pre-set frequency • Power Good Output minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers • Integrated Boost Switch and low-side FET RDS(on) current sensing supports • Built-in OVP/UVP/OCP low-loss and high efficiency, over a broad load range. • Thermal Shutdown (Non-latch) The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the • SON-10 (DSC) Package output voltage ranges from 0.7 V to 2.6 V. The device requires an external 5-V supply. The TPS51211 is available in a 10-pin SON package 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 D-CAP 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. |
Аналогичный номер детали - TPS51211 |
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Аналогичное описание - TPS51211 |
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