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3 V TO 6 V INPUT, 1.5 A OUTPUT SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT)

Hiệu quả ở 1,5-Một nguồn đầu ra liên tục hoặc chìm hiện tại 0,9-V 3.3-V Điện áp ra điều chỉnh với độ chính xác 1% bù cho bên ngoài thiết kế linh hoạt đáp ứng nhanh thoáng rộng PWM tần số: cố định 350 kHz, 550 kHz hoặc 280 kHz đến 700 điều chỉnh kHz tải Giới hạn bảo vệ bởi hiện tại cao điểm và Shutdown nhiệt tích hợp giải pháp Giảm Khu vực Ban và tổng chi phí | Texas Instruments www.ti.com TPS54110 SLVS500A - DECEMBER 2003 Typical Size 6 3 mm X 6 4 mm 3-V TO 6-V INPUT 1.5-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs SWIFT FEATURES DESCRIPTION Integrated MOSFET Switches for High Efficiency at 1.5-A Continuous Output Source or Sink Current 0.9-V to 3.3-V Adjustable Output Voltage With 1 Accuracy Externally Compensated for Design Flexibility Fast Transient Response Wide PWM Frequency Fixed 350 kHz 550 kHz or Adjustable 280 kHz to 700 kHz Load Protected by Peak Current Limit and Thermal Shutdown Integrated Solution Reduces Board Area and Total Cost APPLICATIONS Low-Voltage High-Density Systems With Power Distributed at 5 V or 3.3 V Point of Load Regulation for High Performance DSPs FPGAs ASICs and As members of the SWIFT family of dc dc regulators the TPS54110 low-input-voltage high-output-current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true high-performance voltage error amplifier that provides high performance under transient conditions an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V an internally and externally set slow-start circuit to limit in-rush currents and a power-good output useful for processor logic reset fault signaling and supply sequencing. The TPS54110 device is available in a thermally enhanced 20-pin TSSOP PWP PowerPAD package which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles. Microprocessors Broadband Networking and Optical Communications Infrastructure Portable Computing Notebook PCs EFFICIENCY vs 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