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TPS54372PWPRG4 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS54372PWPRG4 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 17 page 6,4 mm X 6,6 mm Typical Size www.ti.com FEATURES DESCRIPTION APPLICATIONS VIN PH BOOT PGND VSENSE VTTQ AGND VBIAS Input TPS54372 COMP Compensation Network REFIN VDDQ t − Time − 25 ms/div TRANSIENT RESPONSE VI = 5 V, VO = 1.25 V 0 A to 2.25 A SIMPLIFIED SCHEMATIC TPS54372 SLVS430D – JUNE 2002 – REVISED FEBRUARY 2005 3-A OUTPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs (SWIFT™) • Tracks Externally Applied Reference Voltage As a member of the SWIFT™ family of dc/dc regu- lators, the TPS54372 low-input voltage, high-output • 60-m Ω MOSFET Switches for High Efficiency current, synchronous-buck PWM converter integrates at 3-A Continuous Output Source or Sink all required active components. Included on the Current substrate with the listed features are a true, high • 6% to 90% VI Output Tracking Range performance, voltage error amplifier that enables • Wide PWM Frequency: Fixed 350 kHz or maximum performance under transient conditions Adjustable 280 kHz to 700 kHz and flexibility in choosing the output filter L and C components; an undervoltage-lockout circuit to pre- • Load Protected by Peak Current Limit and vent start-up until the input voltage reaches 3 V; an Thermal Shutdown internally and externally set slow-start circuit to limit • Integrated Solution Reduces Board Area and in-rush currents; and a status output to indicate valid Total Cost operating conditions. The TPS54372 is available in a thermally enhanced 20-pin TSSOP (PWP) PowerPAD™ package, which • DDR Memory Termination Voltage eliminates bulky heatsinks. TI provides evaluation • Active Termination of GTL and SSTL modules and the SWIFT™ designer software tool to High-Speed Logic Families aid in quickly achieving high-performance power supply designs to meet aggressive equipment devel- • DAC Controlled, High-Current Output Stage opment cycles. • Precision Point-of-Load Power Supply SIMPLIFIED SCHEMATIC 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. SWIFT, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2005, 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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