LMZ14203HTZE/NOPB – TEXAS INSTRUMENTS

The Texas Instruments LMZ14203HTZE/NOPB is a 3A synchronous step-down converter housed in a compact, thermally enhanced 16-pin HTSSOP (PW) package. Specifically designed for high-efficiency point-of-load applications, it operates from a 4.5V to 18V input voltage range, delivering a precisely regulated output voltage adjustable from 0.8V to 5.5V. Its internal synchronous rectification significantly reduces power loss, achieving efficiencies exceeding 95% at typical operating points. The device incorporates a 150kHz switching frequency, enabling the use of smaller, less costly output capacitors._x000D_
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Key features include adjustable output voltage via external resistors, soft-start functionality to minimize inrush current, and overcurrent/short-circuit protection. The LMZ14203HTZE/NOPB’s “NOPB” designation indicates lead-free, halogen-free packaging, meeting RoHS compliance. Its high efficiency and small footprint make it ideal for space-constrained designs in applications such as portable devices, industrial controls, and automotive electronics requiring regulated low-voltage power rails from higher input voltages. The internal compensation simplifies design, minimizing external component count and reducing overall board space. Its robust protection features ensure reliable operation even under fault conditions.