Texas Instruments LM3478
the LM3478 with the WEBENCH Power Designer 2 Applications • Distributed Power Systems • Battery Chargers • Offline Power Supplies • Telecom Power Supplies • Automotive Power Systems • Wide Supply Voltage Range of 2.97 V to 40 V • 100-kHz to 1-MHz Adjustable Clock Frequency • ±2.5% (Over Temperature) Internal Reference • 10-µA Shutdown Current (Over Temperature) 3 Description The LM3478 is a versatile Low-Side N-Channel MOSFET controller for switching regulators. It is suitable for use in topologies requiring a low side MOSFET, such as boost, flyback, SEPIC, etc. The switching frequency of the LM3478 can be adjusted to any value between 100 kHz and 1 MHz by using a single external resistor.