LT3958IUHE#PBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LT3958IUHE#PBF is a high power synchronous DC-DC converter switch regulator integrated circuit (IC) designed for a wide range of applications. This device has an input voltage range from 6v to 80v and can output up to 200w of power. It also features low ripple and noise, and low component count. Additionally, the LT3958IUHE#PBF supports programmable features such as starting up into constant frequency, bursts mode operation and soft-start.

Applications

The LT3958IUHE#PBF is suitable for applications where high power and efficiency is necessary, such as DC/DC converters, switching regulators, power supplies, and motor drive applications. It can be used in a wide range of market segments including automotive, consumer, industrial, lighting, and medical.

Features

The LT3958IUHE#PBF offers a variety of features that make it suitable for numerous applications. It includes high-voltage MOSFETs to reduce component count, fast transient response, and low EMI. It also has a quiescent current of 50uA, making it much more efficient than traditional power converters. It features a wide range of features such as an adjustable operating frequency from 1kHz to 400kHz, adjustable output voltage from 0.8v to 99%, and adjustable dead time for optimal power transfer and efficiency. Additionally, the device has built-in protection features such as an over-temperature protection, over-voltage protection, output current limit and short-circuit protection for increased safety.

Working Principle

The LT3958IUHE#PBF is a synchronous-rectified step-down DC-DC converter switch regulator. Its operation is based on two MOSFETs operating in a synchronous-rectification configuration to regulate voltage. The timing and switching sequence of the two power MOSFETs are controlled by waveforms generated on-chip, based on the programmed output voltage. The waveforms enable the MOSFETs to be driven alternately in order to achieve a stepped output voltage. Once the voltage has been regulated, the current-mode PWM controller provides precise current control. The output voltage is monitored and the PWM is adjusted accordingly, keeping the output in regulation even when changing load conditions.

Conclusion

The LT3958IUHE#PBF is a high power, low noise, low component count synchronous DC-DC converter switch regulator IC. It is suitable for a range of applications where high power and efficiency is necessary such as DC/DC converters, power supplies and motor drive applications. With its adjustable operating frequency and adjustable output voltage, it is able to offer precise regulation with minimal noise and ripple. Additionally, it provides a variety of built-in protection features for increased safety and reliability.

The specific data is subject to PDF, and the above content is for reference