LM3352-3.3EVAL [Texas Instruments]

The LM3352 is a regulated 200 mA buck-boost switched capacitor DC/DC converter that provides step-up/step-down voltage regulation in battery-powered systems. It combines switched capacitor circuitry, reference, comparator, and shutdown logic in a single 16-pin TSSOP package. The device can provide a regulated voltage between 1.8V and 4V from an input voltage between 2.5V and 5.5V, supplying load current up to 200mA with >80% average efficiency. It features low operating current (400µA typical), low shutdown current (2.5µA typical), and 1MHz switching frequency. The proprietary buck-boost architecture uses two feedback loops for efficient regulation, and the device requires few low-cost external components, enabling very small solution size. It includes over-temperature protection.