LM22003TZX/NOPB – TEXAS INSTRUMENTS

The LM22003TZX/NOPB is a Texas Instruments single-output, step-down switching regulator in a space-saving 6-pin SOT-23 (surface mount) package. This specific part number denotes a lead-free, halogen-free (RoHS compliant) device. It operates from a 2.5V to 5.5V input voltage range, delivering a fixed 3.3V output with a maximum output current of 300mA. The device utilizes a synchronous rectification topology, resulting in high efficiency (typically >90% at 300mA load) and low quiescent current (≤100µA), making it ideal for battery-powered applications._x000D_
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The LM22003TZX/NOPB features internal soft-start, short-circuit protection, and thermal shutdown, ensuring robust operation and preventing damage from overload conditions. Its fixed output voltage eliminates the need for external components for voltage setting, simplifying design and reducing board space. Common use cases include powering microcontrollers, sensors, and other low-power peripherals in portable devices, IoT applications, and other space-constrained systems where high efficiency and small form factor are critical. The device’s high efficiency translates directly to extended battery life in portable applications, a key advantage over linear regulators in such designs.