TPS60403DBVR – TEXAS INSTRUMENTS

The TPS60403DBVR is a 3.3V, 300mA synchronous step-down converter from Texas Instruments, packaged in a compact 6-pin WCSP (WSON) package. It operates from a wide input voltage range of 1.8V to 5.5V, making it suitable for applications with fluctuating supply voltages. This device features a high-efficiency architecture utilizing a synchronous rectification topology, achieving efficiencies exceeding 90% at typical operating points. The integrated 10µH inductor and 100nF output capacitor minimize the external component count, simplifying PCB layout and reducing solution size. Its low quiescent current of 25µA contributes to extended battery life in portable devices._x000D_
_x000D_
The TPS60403DBVR incorporates features like soft-start, enabling controlled inrush current limiting and enhanced system stability. Overcurrent and thermal protection mechanisms safeguard against faults. Typical applications include powering memory modules, sensors, and other low-power peripherals in portable devices, wearables, and IoT systems where space and efficiency are paramount. Its small footprint and high efficiency make it a superior choice compared to larger, less efficient linear regulators in space-constrained designs requiring regulated 3.3V. The device’s robust protection features ensure reliable operation even in demanding environments.