LINEAR launches multi-phase high efficiency synchronous DC / DC controller LTC3731

LINEAR launches multi-phase high efficiency synchronous DC / DC controller LTC3731H Linear Technology Corporation launched multiphase (up to 95%) Synchronous DC / DC controller LTC3731H, which is guaranteed when the junction temperature is as high as 140oC in a 5mm x 5mm QFN package. This rugged DC / DC controller can be extended from 3 to 12-phase for use in 60A to 240A power supply design. The heat management is simplified by uniformly dispersing heat at each output stage, accurate ± 5% output phase current match simplifies heat management. Applications include large current ASICs and FPGA power supplies, power distributed buses, automotive engine control units and web servers. Be The LTC3731 can be configured as a buck type or boost converter and operate with a full N-channel MOSFET and a range of input voltages from 4.5V to 28V. A powerful built-in gate driver minimizes MOSFET switching losses and allows multiple parallel MOSFETs to be used. The fixed operating frequency can be set to a 250kHz to 600 kHz for each phase, or can be synchronized to an external clock with its phase-locked loop (PLL). The minimum turn-on time of the device is only 110ns, so that the LTC 3731 is ideal for high buck ratio applications. The reference voltage remains ± 2% accuracy within the entire operating range of -40 ° to 140 ° C. The LTC3731H uses Stage SheddingTM energy-saving technology to increase efficiency and extend battery life by eliminating two output stages of gate charging loss and switching losses to increase efficiency during light load. Other features include current mode control, programmable soft start, short circuit and overload protection, and adjustable soft start. The LTC3731H uses 32 lead 5mm x 5mm QFN packages and 36-pin SSOP packages, and starts. Purchased in batches of 1,000 pieces, each price of $ 5.00. Technology area Heilind won the title of "2017 Huaqiang Electronic Network Quality Supplier" Tas5634300W stereo PurePath (TM) HD digital input efficient power level TAS2557 5.7W D-class audio amplifier with H-class boost and speaker detection function Ruckus NetWorks appointed Deng Weidong for the general manager of China China Site Electronic Technology Forum - Power Technology Practice Seminar held in Wuhan

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