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本文介绍线性技术(LINEAR TECHNOLOGY)公司生产的一组新器件。它们是高效率降压式开关电源调节器,100MHz电流反馈放大器,用于PCMCIA卡的DC/DC变换器及输出电压接近电源电压的零漂移运算放大器。 LTC1148 LTC1148HV-5是一种同步降压式开关稳压电源控制器集成电路,有DIP和SO两种塑封形式。它有自动脉冲串模式(Burst Mode)电路,使输出在轻负载时保持高效率。它驱动外部一对互补MOSFET功率管(频率为250kHz),有固定3.3V、5V及可调输出。
This article describes a new family of devices produced by LINEAR TECHNOLOGY. They are high efficiency buck switching power supply regulators, 100MHz current feedback amplifiers, DC / DC converters for PCMCIA cards, and zero-drift op amps with output voltages close to the supply voltage. LTC1148 The LTC1148HV-5 is a synchronous buck switching power supply controller integrated circuit with DIP and SO in two plastic forms. It has an automatic burst mode circuit that keeps the output high at light loads. It drives an external pair of complementary MOSFET power transistors (at 250kHz) with a fixed 3.3V, 5V and adjustable output.