This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 5 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.
Details:
Input voltage: 5.2 V to 50 V (minimum input subject to dropout voltage considerations; see the dropout voltage section for details)
Output voltage: 5 V with 4% accuracy
Maximum output current: 600 mA (see the maximum continuous output current graph below)
Fixed 2.1 MHz switching frequency
High-voltage enable input can put the board into a low-power state where it draws less than 2 μA (typical)
Low quiescent current: < 0.1 mA (see the quiescent current graph below)
Integrated over-temperature and over-current shutoff
Small size: 0.5″ × 0.4″ × 0.1″ (13 mm × 10 mm × 3 mm)
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