厂商：Freescale
类别：16位单片机
厂商：Panasonic
类别：微动开关
厂商：Murata
类别：片状电感器
厂商：TDK
类别：脉冲变压器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：ATtiny系列单片机
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特点Constant 500kHz Switching FrequencyHigh Power 16-Pin TSSOP Package AvailableUses All Surface Mount ComponentsInductor Size Reduced to 1.8μHSaturating Switch Design: 0.07?Effective Supply Current: 2.5mAShutdown Current: 20μACycle-by-Cycle Current LimitingEasily Synchronizable典型应用典型应用描述The LT?1374 is a 500kHz monolithic buck mode switching regulator. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. Both fixed output voltage and adjustable parts are available.A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch.The LT1374 is available in standard 7-pin DD, TO-220, fused lead SO-8 and 16-pin exposed pad TSSOP packages. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts may be used, including the inductor and capacitors. There is the optional function of shutdown or synchronization. A shutdown signal reduces supply current to 20μA. Synchronization allows an external logic level signal to increase the internal oscillator from 580kHz to 1MHz.Protected by U.S. Patents, Including 6111439, 5668493, 5656965