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TPS40074RHLRTIN/a3000avaiMIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
TPS40074RHLRG4TIN/a2888avaiMidrange Input Synchronous Buck Controller With Voltage Feed-Forward 20-VQFN -40 to 85


TPS40074RHLR ,MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARDFEATUREStechniques to provide good line regulation over a• Operation Over 4.5-V to 28-V Input Range ..
TPS40074RHLRG4 ,Midrange Input Synchronous Buck Controller With Voltage Feed-Forward 20-VQFN -40 to 85MAXIMUM RATINGS(1)over operating free-air temperature range unless otherwise notedTPS40074 UNITVDD, ..
TPS40075RHLR ,Wide Input Synchronous Buck Controller with Voltage Feed Forward 20-VQFN -40 to 85SLUS676A–MAY 2006–REVISED SEPTEMBER 2007ORDERING INFORMATIONT PACKAGE PART NUMBERA(1)TPS40075RHLT40 ..
TPS40075RHLRG4 ,Wide Input Synchronous Buck Controller with Voltage Feed Forward 20-VQFN -40 to 85maximum ratings" may cause permanent damage to the device. These are stress ratingsonly, and functi ..
TPS40075RHLRG4 ,Wide Input Synchronous Buck Controller with Voltage Feed Forward 20-VQFN -40 to 85SLUS676A–MAY 2006–REVISED SEPTEMBER 2007RECOMMENDED OPERATING CONDITIIONSMIN NOM MAX UNITV Input vo ..
TPS40075RHLT ,Wide Input Synchronous Buck Controller with Voltage Feed Forward 20-VQFN -40 to 85FEATURESusing second generation Predictive Gate Drive to2• Operation Over 4.5-V to 28-V Input Range ..
TSB42AA4 ,1394 Link Layer Controller With DTCP Content Protection for Consumer Electronics Applications
TSB42AA4 ,1394 Link Layer Controller With DTCP Content Protection for Consumer Electronics Applications
TSB42AA4 ,1394 Link Layer Controller With DTCP Content Protection for Consumer Electronics Applications
TSB42AA9PZT ,High-Performance 1394 Link-Layer Controller for ATAPI/ATA Storage Products
TSB42AB4 ,1394 Link Layer Controller For Consumer Electronics ApplicationsFEATURES • 8K-byte FIFO supports the following datatypes:• DTCP content protection (TSB42AA4 only). ..
TSB42AB4PDT ,IEEE 1394 A CONSUMER ELECTRONICS LINK LAYER CONTROLLERSLLA217–JUNE 2006The ceLynx is also versatile enough to handle asynchronous data and asynchronous s ..


TPS40074RHLR-TPS40074RHLRG4
MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
TPS40074 www.ti.com SLUS617B–APRIL 2005–REVISED OCTOBER 2006 MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD The TPS40074 uses voltage feed-forward control FEATURES techniques to provide good line regulation over a • Operation Over 4.5-V to 28-V Input Range wide input voltage range, and fast response to input • Fixed-Frequency Voltage-Mode Controller line transients. Voltage feed-forward also provides • Integrated Unity Gain Amplifier for Remote nearly constant power stage gain with input variation to ease loop compensation of wide input range Output Sensing designs. The externally programmable short circuit • Predictive Gate Drive™ Generation II for protection provides fault current limiting, as well as Improved Efficiency hiccup mode operation for low power dissipation in • <1% Internal 700-mV Reference the presence of a shorted output. The TPS40074 is packaged in a 20-pin QFN package for better • Input Voltage Feed Forward Control thermal performance at higher voltages and • Prebiased Output Compatible frequencies, as well as reduced footprint. • Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs SIMPLIFIED APPLICATION DIAGRAM • Switching Frequency Programmable to 1 MHz V + V − OUT OUT (at Load) (at Load) • 20-Pin QFN Package • Thermal Shutdown Protection 1 20 • Software Design Tool and EVM Available SA− SA+ TPS40074 SYNC IN APPLICATIONS 2 SAO SYNC 19 PowerGood OUT • Power Modules 3 GND PGD 18 • Networking/Telecom 4 SS LVBP 17 • Industrial • Servers 5 FB RT 16 6 COMP KFF 15 DESCRIPTION 7 PGND ILIM 14 The TPS40074 is a mid voltage, wide input (4.5-V to V IN 28-V), synchronous, step-down controller, offering 8 LDRV VDD 13 design flexibility for a variety of user programmable functions, including; soft start, UVLO, operating 9 DBP HDRV 12 frequency, voltage feed-forward and high-side FET sensed short circuit protection. SW BOOST 10 11 The TPS40074 incorporates MOSFET gate drivers for external N-channel high side and synchronous rectifier (SR) MOSFETs. The gate drive logic incorporates second generation predictive anti-cross conduction circuitry to prevent simultaneous high side and synchronous rectifier conduction, while minimizing to eliminating current flow in the body V − V + OUT OUT diode of the SR FET. The TPS40074 allows for UDG−04075 starting into pre-biased outputs by not allowing the synchronous rectifier FET to turn on until the commanded voltage during soft start is greater than the existing pre-bias voltage. 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. Predictive Gate Drive is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2005–2006, 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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