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| Step Down DC - DC Converter Power IC MD1423R Feature Block Diagram Frequency adjustable Small footprint Output adjustable Remote On/Off Synchronous Rectification Input Voltage range 8V to 40V Maximum Output Current 3A Built_in MOSFETs for main switch and synchronous rectification Adjustable output from 2.5V to 12V with external resistors Adjustable oscillation frequency from 100kHz to 500kHz with external resistors High Efficiency typ. 96% (at:Vin=8V, Vout=5V, Iout=1A, f=100kHz) Over Current Protection Thermal Shut Down Remote On / Off Standard Connection Diagram Pin Assignment ( LSSOP26) 1 2 3 4 5 6 7 8 9 10 11 12 13 26 25 24 23 22 21 20 19 18 17 16 15 14 *Please consult with us when it is desired to make output adjustable in a range over 5.3V. See the marking specification for the indication on the device 29 MD1423R Absolute Maximum Ratings Item Symbol Unless otherwise specified : Ta=25C Ratings Units Recommended Operating Conditions Item Symbol Recommendation Units Electrical Characteristics Item Symbol Condition Unless otherwise specified : Ta=25C MIN TYP MAX Units 30 |
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