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4.5 V TO 20 V INPUT, 3 A OUTPUT SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FET (SWIFT)

Hiệu quả ở 3-A Sử dụng liên tục hiện ra bên ngoài hoặc Lowside MOSFET Diode phiên bản đầu ra cố định - 1.2V/1.5V/1.8V/2.5V/3.3V/5.0V nội bộ bù cho phần thấp để đồng hồ đếm ngoài Synchronizer 1805 Trong giai đoạn đồng bộ Tần số PWM Wide - Cố định 250 kHz, 500 kHz hoặc 250 kHz đến 700 kHz điều chỉnh nội bộ chậm bắt đầu tải Giới hạn bảo vệ bởi hiện tại cao điểm và điều chỉnh áp thấp nhiệt Shutdown Khóa 16-Pin gói TSSOP PowerPad . | TPS54352JPS54353 TPS54354 TPS54355 TPS54356JPS54357 SLVS519 - MAY 2004 Texas Instruments www.ti.com 6 4 mm X 5 0 mm 4.5-V TO 20-V INPUT 3-A OUTPUT SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FET SWIFT FEATURES 100 mQ 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current Uses External Lowside MOSFET or Diode Fixed Output Versions -1.2V 1.5V 1.8V 2.5V 3.3V 5.0V Internally Compensated for Low Parts Count Synchronizes to External Clock 180 Out of Phase Synchronization Wide PWM Frequency - Fixed 250 kHz 500 kHz or Adjustable 250 kHz to 700 kHz Internal Slow Start Load Protected by Peak Current Limit and Thermal Shutdown Adjustable Undervoltage Lockout 16-Pin TSSOP PowerPAD Package APPLICATIONS Industrial Commercial Low Power Systems LCD Monitors and TVs Computer Peripherals Point of Load Regulation for High Performance DSPs FPGAs ASICs and Microprocessors SIMPLIFIED SCHEMATIC DESCRIPTION The TPS5435x is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions. The TPS5435x has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches a preset value an internal slow-start circuit to limit in-rush currents and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180 out of phase synchronization. The TPS5435x devices are available in a thermally enhanced 16-pin TSSOP PWP PowerPAD package. 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. EFFICIENCY vs Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Instruments .