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LM3075MTC Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM3075MTC Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 18 page LM3075 High Efficiency, Synchronous Current Mode Buck Controller General Description The LM3075 is a current mode control, synchronous buck controller IC. Use of synchronous rectification and pulse- skipping operation at light load achieves high efficiency over a wide load range. Fixed frequency operation can be ob- tained by disabling the pulse-skipping mode. Current mode control assures excellent line and load regulation and a wide loop bandwidth for fast response to load transients. Current mode control can be achieved by either sensing across the high side NFET or a sense resistor. The switching frequency can be selected as either 200 kHz or 300 kHz from an internal clock. The LM3075 is available with an adjustable output in a TSSOP-20 package. Features n Input voltage range of 4.5V-36V n Current Mode Control n Skip mode operation available n Cycle by cycle current limit n 1.24V ±2% Reference Applications n Automotive Power Supplies n Distributed Power Systems Typical Application Circuit 20162301 September 2005 © 2005 National Semiconductor Corporation DS201623 www.national.com |
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