LM50CIM3 – TEXAS INSTRUMENTS

The Texas Instruments LM50CIM3 is a monolithic, synchronous step-down converter optimized for high-efficiency, low-noise operation in space-constrained applications. This 3mm x 3mm QFN package houses a complete solution, eliminating the need for external Schottky diodes and compensation components. It operates from a 4.5V to 28V input voltage range, delivering a precisely regulated output voltage adjustable from 0.8V to 5.5V. The device features a programmable switching frequency (up to 1.5MHz) enabling designers to optimize EMI performance and component selection. Internal 2.2µH inductor and 10µF output capacitor contribute to a small solution size._x000D_
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The LM50CIM3 utilizes a current mode architecture with cycle-by-cycle current limiting for robust short-circuit protection. Efficiency exceeds 90% across a wide load range, minimizing power dissipation and extending battery life in portable devices. Its low quiescent current (typically 30µA) further enhances efficiency in light-load conditions. Common applications include powering microprocessors, memory, and other sensitive circuitry in portable equipment, industrial control systems, and automotive electronics where compact size and high efficiency are paramount. Its precise output voltage regulation and low output ripple voltage make it ideal for applications requiring stable power delivery.