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 obtained 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.
The LM3075 is a current mode control, synchronous buck controller IC designed for high efficiency over a wide load range. It utilizes synchronous rectification and pulse-skipping operation to maintain performance. The device allows for fixed frequency operation by disabling the pulse-skipping mode and supports switching frequencies of 200 kHz or 300 kHz via an internal clock.
| Input voltage range | 4.5V-36V |
|---|---|
| Switching frequency | 200 kHz or 300 kHz |
| Package type | TSSOP-20 |
| Thermal shutdown temperature | 160 °C |
| Ordering number | LM3075MTC |
The LM3075 is suitable for Automotive Power Supplies and Distributed Power Systems.
The switching frequency is selected as either 200 kHz or 300 kHz from an internal clock.
The maximum duty cycle is 95.5% to 98% depending on the feedback voltage.