LTC7862EFE#PBF

The LTC7862EFE#PBF is a synchronous buck switching regulator step-downcontroller that is a perfect solution for industrial, consumer andserver applications. Designed for maximum efficiency, power density anddesign flexibility, this controller features a selectable frequencymode that can be used to optimize efficiency and thermal performance.The LTC7862EFE#PBF is available in an industry standard 16-leadThermallyEnhanced PowerPADTM package, making it a small form factor andcost-effective solution for advanced power supply architectures.

The LTC7862EFE#PBF is a compact, synchronous step-down switching regulatorcontroller that delivers up to 8A of output current. The device operatesfrom a 4.5V to 28V input, and is programmable to produce one of fouroutput voltages: 0.8V, 1.0V, 1.2V or 1.5V. In addition to the fourselectable output voltages, the output voltage can also be adjustedfrom within ±2% of its programmed voltage level using an externalresistor. The LTC7862EFE#PBF also features a selectable frequency modethat can be set to either 400kHz or 1.2MHz, allowing for maximumflexibility in terms of design and optimization.

Integrated features of the LTC7862EFE#PBF include an adjustable soft-startfunction, a programmable minimum on-time, and an adjustable currentlimit with both hiccup and foldback options. With the adjustable userprogrammable maximum duty cycle, it is possible to select the peakswitch current limit and set the minimum on-time to ensure a stableoperation. Over-temperature and under-voltage lockout help to ensureregulator stability. Additionally, the LTC7862EFE#PBF can be put into ashutdown mode based on the logic level of its EN pin, allowing thesystem to be put into a zero-current standby state.

In order to best utilize the LTC7862EFE#PBF, it is important to considerthe application and set the current limit and minimum on-timeparameters accordingly. It is also recommended to use externalcomponents to optimize the voltage regulation, such as a Schottkydiode, a low loss inductor, and input and output capacitors.Once configured and designed correctly, the LTC7862EFE#PBF can be usedin a variety of applications, including automotive, consumer,industrial and telecom applications requiring a synchronous step-downswitching regulator.