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RT4503GQW Datasheet(PDF) 2 Page - Richtek Technology Corporation |
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RT4503GQW Datasheet(HTML) 2 Page - Richtek Technology Corporation |
2 / 13 page 2 RT4503/A www.richtek.com DS4503/A-03 June 2015 © Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Functional Pin Description Pin No. Pin Name Pin Function 1 FB Feedback Voltage Input. Place a resistor between this pin and GND to set the current. COMP (RT4503) Connect an External Capacitor to this Pin. 2 NC (RT4503A) No Internal Connection. 3, 7 (Exposed Pad) GND Ground. The exposed pad must be soldered to a large PCB and connected to GND for maximum thermal dissipation. 4 LX Switch Node. Connect the pin to the switch side of the inductor. 5 EN Enable Control Input and Pulse Dimming Input. 6 VIN Supply Voltage Input. WDFN-6L 2x2 (TOP VIEW) FB NC VIN EN LX GND 5 4 1 2 3 6 7 Pin Configurations RT4503 WDFN-6L 2x2 RT4503A FB COMP VIN EN LX GND 5 4 1 2 3 6 7 Marking Information 1TW 1T : Product Code W : Date Code RT4503GQW 2R : Product Code W : Date Code RT4503AGQW 2RW |
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