LMZ14201EXTTZ/NOPB

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DC-DC converters are electrical devices used to convert one DC voltage to another DC voltage. The LMZ14201EXTTZ/NOPB is an integrated, non-isolated step-down DC-DC converter. It features a wide input voltage range of 4.5V to 38V, and provides a 5V output with a maximum load current of 3A. Its design allows for synchronous rectification and an integrated 300mΩ RDSon output switch, which minimizes losses during conversion, thus maximizing efficiency. The device is ideal for applications such as single cell to multi-cell Li-Ion battery conversions, USB and other wide input voltage source applications.

Features:

• Maximum input voltage of up to 38V
• High efficiency up to 94%
• Low output noise of 790mV
• Integrated 300mΩ RDSon output switch
• 5V output
• Error flag pin
• Thermal shutdown timer
• Soft start and enable pins

Application Fields:

The LMZ14201EXTTZ/NOPB is suitable for use in a variety of applications, including low voltage mobile devices, computers, digital cameras, battery powered systems, and point-of-load (POL) converter modules. Its wide input voltage range and high efficiency make it an ideal choice for applications that require small form factor DC-DC conversion. The device works well in scenarios where space is at a premium and efficiency is required.

Working Principle:

The LMZ14201EXTTZ/NOPB uses a synchronous rectification topology and an integrated 300mΩ RDSon output switch, to minimize losses during regulation. The device\'s soft start and enable pins also reduce turn on and turn off time while minimizing outrush current and keeping inrush currents within allowable limits. The feedback loop in the device is designed to maintain a constant 5V output voltage. The device contains slew rate compensators that provide robust loop stability and low output voltage noise. The thermal shutdown timer on the device protects the device from over-temperature situations and maintains device reliability.

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