LINEAR TECHNOLOGY DC1238B Evaluation Board, 5V, 500mA Buck Regulator,36V 500mA Step-Down µmodule Regulator
The is a demonstration board featuring LTM8021EV DC to DC µModule regulator. The LTM8021EV is a 36VIN, 500mA step down DC to DC µModule. Included in the IC package are the switching controller, power switches, inductor and all support components. The low profile package 2.82mm enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The output has been preset to 5V by a single resistor within the LTM8021EV"s output voltage range of 0.8V to 5V. An adjustable soft start period may be implemented with the addition of a capacitor at C3. The input voltage range is from 7.5V to 36V for the default operating conditions. The LTM8021EV may need more input voltage to start up than to run in steady state.
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- Switching frequency of 1.1MHz
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- Current mode control
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- Programmable soft start
If there is no output, temporarily disconnect the load to make sure that the load is not set too high.