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TPS54260-Q1 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54260-Q1 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 48 page  0 10 20 30 40 50 60 70 80 100 0 0.5 1.0 1.5 2.0 I - Output Current - A O 2.5 3.0 90 VIN=12V VOUT=3.3V fsw=300kHz PH VIN GND BOOT VSENSE COMP TPS54260-Q1 EN RT /CLK SS /TR PWRGD TPS54260-Q1 www.ti.com SLVSAH8A – DECEMBER 2010 – REVISED APRIL 2011 3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE ™ Check for Samples: TPS54260-Q1 1 FEATURES • 0.8-V Internal Voltage Reference • MSOP10 Package With PowerPAD ™ 2 • Qualified for Automotive Applications • Supported by SwitcherPro ™ Software Tool • 3.5 V to 60 V Input Voltage Range (http://focus.ti.com/docs/toolsw/folders/print/s • 200-m Ω High-Side MOSFET witcherpro.html) • High Efficiency at Light Loads with a Pulse • For SWIFT ™ Documentation, See the TI Skipping Eco-Mode ™ Website at http://www.ti.com/swift • 138 μA Operating Quiescent Current • 1.3 μA Shutdown Current APPLICATIONS • 100kHz to 2.5MHz Switching Frequency • 12-V and 24-V Industrial and Commercial Low • Synchronizes to External Clock Power Systems • Adjustable Slow Start/Sequencing • GSM, GPRS Modules in Fleet Management, • UV and OV Power Good Output E-Meters, and Security Systems • Adjustable UVLO Voltage and Hysteresis DESCRIPTION The TPS54260-Q1 device is a 60 V, 2.5 A, step down regulator with an integrated high side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load, regulated output supply current to 138 μA. Using the enable pin, shutdown supply current is reduced to 1.3 μA, when the enable pin is low. Under voltage lockout is internally set at 2.5V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 94% to 107% of its nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition. The TPS54260-Q1 is available in 10-pin thermally enhanced MSOP Power Pad ™ package. SIMPLIFIED SCHEMATIC EFFICIENCY vs LOAD CURRENT 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, PowerPAD, SwitcherPro, SWIFT are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2010–2011, 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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