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36-V, 5-A uModule regulator protects input supplies from overcurrent conditions

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By eeNews Europe

In contrast, common regulators must current share, a feature where each input supply contributes equally to the load, which is restricted by the least powerful input rail. Applications for the LTM8026 include point of load regulation in systems with 24 V and 12 V supplies such as VXI bus, for automotive, medical and industrial end-markets.

Like other Linear Technology µModule regulators, the LTM8026 includes the DC/DC controller, power switches, power inductor, compensation and a modest amount of input and output capacitance in a surface mount package. The current limit is adjustable by applying a voltage or resistor divider and can be automatically decreased with rising junction or ambient temperature using a thermistor to prevent the LTM8026 or load from overheating.

The LTM8026 operates from an input voltage between 6 V to 36 V and regulates an output voltage between 1.2 V to 24 V set by a single resistor. In a 12 V to 3.3 V output application, the LTM8026 achieves an operating efficiency of 89% at 2A. For noise-sensitive applications, the µModule regulator can be synchronized to an external clock frequency in the range of 100 kHz to 1 MHz. Additional features include externally adjustable soft start, adjustable switching frequency and thermal shutdownn.

The LTM8026 is packaged in a thermally efficient 11.25 mm x 15 mm x 2.82 mm LGA package. Two temperature grades, E and I for the -40°C to +125°C temperature range, are available for immediate delivery from stock.

www.linear.com/product/LTM8026


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