LT1071HVCT#PBF

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LT1071HVCT#PBF - PMIC - Voltage Regulators - DC DC Switching Regulators

The LT1071HVCT#PBF is a high voltage, monolithic, synchronous step-down DC/DC converter designed for very low input voltage applications with superior light load efficiency and fast transient response. This DC/DC converter can provide continuous output currents of up to 36A and deliver a regulated output voltage of 2.5V to 36V from input voltages ranging from 6V to 52V.

Features

• High Power Density up to 28 W/in³
• Very Low Input Voltage Capability
• Continuous Output Current up to 36 A
• 0.6V Reference Voltage (Typ)
• High Efficiency: typ 90%
• 3 MHz Fixed Frequency
• Accurate Current Limit Circuitry
• Soft-Start Feature
• Output Short-Circuit Protection
• Internal Power MOSFETs
• Optional CLK mode
• Thermally Enhanced 8-Lead MSOP Package

Applications

• Battery-Powered Equipment
• Telecommunications
• DSP-Based Systems
• Process Control
• Industrial Power System
• Automotive
• Consumer

Working Principle

The LT1071HVCT works by taking DC power from an input source and converting it to the desired output voltage. The unit features synchronous rectification, a feature that improves efficiency by using the rectification process to convert AC current to DC power without the losses of a diode. The synchronous rectification increases the efficiency of the LT1071HVCT by approximately 7%. The LT1071HVCT also features a high switching frequency of 3 MHz, allowing the converter to reach up to 28 W/in³ of power density.

LT1071HVCT utilizes a fixed-frequency current mode architecture, which provides fast transient response and accurate current limit overload protection. In addition, the unit features a wide-duty cycle range to allow for maximum flexibility in system design. The soft-start feature helps reduce input inrush current and reduce voltage ringing, while the output short-circuit protection feature helps reduce thermal stress. The rugged, 8-Lead MSOP package helps to ensure that this unit is robust and reliable for industrial applications.

The LT1071HVCT is a very efficient and versatile DC/DC converter. With a wide operating input range, high efficiency, and output rating of up to 36A, this device is well-suited for a variety of applications. With its current mode control and fast transient response, the LT1071HVCT is an excellent choice for high power applications.

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