LT8390AHUFD#PBF

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The LT8390AHUFD#PBF is a high performance, single-loop DC to DC synchronous switching controller and high-side driver combination ideal for low output voltages, and wide input voltage operation. It is a member of the PMIC – Voltage Regulators – DC DC Switching Controllers category.

The LT8390AHUFD#PBF features current-mode PWM switching control. This helps keep output voltage within a tightly-regulated range, even when input voltage and current are fluctuating. It also incorporates Pulse-by-Pulse Current limit and Output Soft-Start, which helps avoid inrush current at start up. The controller also features an integrated high side MOSFET driver with sink/source capability. This helps minimize the number of components needed in the system design.

The LT8390AHUFD#PBF is designed to work with a low-cost buck topology used to step down input voltages. With its wide 4V to 60V input voltage range, the device is well suited to handle the standard automotive 12-volt or 24-volt inputs and provide a regulated 0.6V to 5.5V output voltage. The 0.65V to 5.5V output provides a wide range of operating voltages to power display and processor cores.

In addition, the device has a Burst Mode operation feature that helps reduce quiescent current consumption for improved power efficiency. The LT8390AHUFD#PBF includes an on-board trim resistor and an adjustable voltage reference, providing flexibility to adjust to the exact needs of the application. The device also offers an on-chip thermal shutdown feature which provides protection in the event of prolonged over-temperature conditions.

The LT8390AHUFD#PBF is designed to reduce total system development time, costs, and complexity. It is available in a 8-pin HTSSOP package with an operating temp range from -40°C to +125°C for automotive and industrial applications. This device is a good solution for applications that require wide input voltage range and precise output voltage regulation.

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