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TPS55340 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS55340 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page 50 55 60 65 70 75 80 85 90 95 100 0 0.4 0.8 1.2 1.6 2 2.4 Output Current (A) VIN = 15 V VIN = 12 V VIN = 5 V VOUT = 24 V fSW = 600 kHz G031 TPS55340 VIN EN SW SW SW FREQ SS COMP SYNC FB PGND PGND PGND VIN VOUT RSL RSH L D CI CO RFREQ CSS RC CC AGND TPS55340 www.ti.com SLVSBD4 – MAY 2012 Integrated 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator Check for Samples: TPS55340 1 FEATURES DESCRIPTION The TPS55340 is a monolithic non-synchronous 2 • Internal 5-A, 40-V Low-Side MOSFET Switch switching regulator with integrated 5-A, 40-V power • 2.9-V to 32-V Input Voltage Range switch. It can be configured in several standard • ±0.7% Reference Voltage switching-regulator topologies, including boost, SEPIC and isolated flyback. The device has a wide • 0.5mA Operating Quiescent Current input voltage range to support applications with input • 2.7µA Shutdown Supply Current voltage from multi-cell batteries or regulated 3.3-V, 5- • Fixed Frequency Current Mode PWM Control V, 12-V, and 24-V power rails. • Frequency Adjustable from 100kHz to 1.2MHz The TPS55340 regulates the output voltage with • Synchronization Capability to External Clock current mode PWM (pulse width modulation) control, and has an internal oscillator. The switching • Adjustable Soft-Start Time frequency of PWM is set by either an external resistor • Pulse-Skipping for Higher Efficiency at Light or by synchronizing to an external clock signal. The Loads user can program the switching frequency from 100 • Cycle-by-Cycle Current Limit, Thermal kHz to 1.2 MHz. Shutdown, and UVLO Protection The device features a programmable soft-start • QFN-16 (3mmx3mm) Package with function to limit inrush current during start-up and has PowerPad™ other built-in protection features including cycle-by- cycle over current limit and thermal shutdown. • Wide –40°C to 150°C Operating TJ Range The TPS55340 is available in a small 3mm x 3mm APPLICATIONS 16-pin QFN package with PowerPad™ for enhanced thermal performance. • 3.3-V, 5-V, 12-V, 24-V Power Conversion • Boost, SEPIC, and Flyback Topologies • Thunderbolt Port, Power Docking for Tablets and Portable PCs • Industrial Power Systems • ADSL Modems TYPICAL APPLICATION (BOOST) √ 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 PowerPad is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 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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