LM5143QRHARQ1 Texas Instruments - Yeehing Electronics

Automotive, 3.5-V to 65-V low-IQ, dual output, stackable synchronous buck DC-DC controller

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Specifications

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The LM5143A-Q1 is a 65-V DC/DC synchronous buck controller for high-current single or dual outputs. Deriving from a family of wide-VIN range controllers, the device uses an interleaved, stackable, peak current-mode control architecture for easy loop compensation, fast transient response, excellent load and line regulation, and accurate current sharing with paralleled phases for higher output current. A high-side switch minimum on time of 65 ns provides large step-down ratios, enabling the direct conversion from 12-V, 24-V, or 48-V inputs to low-voltage rails for reduced system complexity and cost. The LM5143A-Q1 continues to operate during input voltage dips as low as 3.5 V, at nearly 100% duty cycle if needed.