厂商：Freescale
类别：16位单片机
厂商：Littelfuse
类别：保险丝座及配件
厂商：Linear
类别：DC/DC控制器
厂商：
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：其它单片机
类别：ATtiny系列单片机
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特点Wide Input Range: 7.4V to 40VTolerates Input Transients to 60V700mA Peak Switch RatingAdaptive Switch Drive Maintains Efficiency at High Load Without Pulse Skipping at Light LoadTrue Current Mode Control200kHz Fixed Operating FrequencySynchronizable to 400kHzLow Supply Current in Shutdown: 30μA Available in 8-Pin SO and PDIP Packages? 典型应用典型应用描述The LT ? 1776 is a wide input range, high efficiency Buck (step-down) switching regulator. The monolithic die includes all oscillator, control and protection circuitry. The part can accept input voltages as high as 60V and contains an output switch rated at 700mA peak current. Current mode control delivers excellent dynamic input supply rejection and short-circuit protection.The LT1776 contains several features to enhance efficiency. The internal control circuitry is normally powered via the V CC pin, thereby minimizing power drawn directly from the V IN supply (see Applications Information). The action of the LT1776 switch circuitry is also load dependent. At medium to high loads, the output switch circuitry maintains fast rise time for good efficiency. At light loads, rise time is deliberately reduced to avoid pulse skipping behavior.The available SO-8 package and 200kHz switching frequency allow for minimal PC board area requirements.?