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MP2225 Datasheet(PDF) 10 Page - Monolithic Power Systems |
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MP2225 Datasheet(HTML) 10 Page - Monolithic Power Systems |
10 / 20 page MP2225 –18V/5A SYNCHRONOUS STEP-DOWN CONVERTER MP2225 Rev. 1.01 www.MonolithicPower.com 10 4/13/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. PIN FUNCTIONS Pin # Name Description 1 AGND Analog Ground. Connect it to GND. 2 IN Supply Voltage. The MP2225 operates from a 4.5V-to-18V input rail. Requires C1 to decouple the input rail. Connect using a wide PCB trace. 3 SW Switch Output. Connect using a wide PCB trace. 4 GND Power Ground. Requires special consideration during PCB layout. Connect to GND with copper traces and vias. 5 BST Bootstrap. Requires a capacitor between SW and BST pins to form a floating supply across the high-side switch driver. 6 EN/SYNC EN high to enable the MP2225. Can apply an external clock to the EN pin to change the switching frequency. 7 VCC Bias Supply. Decouple with a 0.1μF-to-0.22μF capacitor. 8 FB Feedback. Connect to the tap of an external resistor divider from the output to GND to set the output voltage. The frequency fold-back comparator lowers the oscillator frequency when the FB voltage is below 480mV to prevent current-limit run-away during a short-circuit fault condition. |
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Similar Description - MP2225 |
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