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TPS51218 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS51218 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 27 page 1 2 3 4 10 9 8 7 VBST DRVH SW V5IN PGOOD TRIP EN VFB TPS51218 5 6 DRVL RF GND V IN V OUT V OUT_GND EN V5IN UDG-09064 TPS51218 www.ti.com SLUS935B – MAY 2009 – REVISED FEBRUARY 2012 HIGH PERFORMANCE, SINGLE SYNCHRONOUS STEP-DOWN CONTROLLER FOR NOTEBOOK POWER SUPPLY Check for Samples: TPS51218 1 FEATURES APPLICATIONS 2 • Wide Input Voltage Range: 3 V to 28 V • Notebook Computers • Output Voltage Range: 0.7 V to 2.6 V • I/O Supplies • Wide Output Load Range: 0 to 20A+ • System Power Supplies • Built-in 0.5% 0.7 V Reference DESCRIPTION • D-CAP ™ Mode with 100-ns Load Step The TPS51218 is a small-sized single buck controller Response with adaptive on-time D-CAP ™ mode. The device is • Adaptive On Time Control Architecture With 4 suitable for low output voltage, high current, PC Selectable Frequency Setting system power rail and similar point-of-load (POL) power supply in digital consumer products. A small • 4700 ppm/ °C RDS(on) Current Sensing package with minimal pin-count saves space on the • Internal 1-ms Voltage Servo Softstart PCB, while a dedicated EN pin and pre-set frequency • Pre-Charged Start-up Capability selections minimize design effort required for new • Built in Output Discharge designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on) current sensing • Power Good Output supports low-loss and high efficiency, over a broad • Integrated Boost Switch load range. The conversion input voltage which is the • Built-in OVP/UVP/OCP high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.7 V to 2.6 V. • Thermal Shutdown (Non-latch) The device requires an external 5-V supply. The • SON-10 (DSC) Package TPS51218 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 © 2009–2012, 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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