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RT8082 Datasheet(PDF) 2 Page - Richtek Technology Corporation |
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RT8082 Datasheet(HTML) 2 Page - Richtek Technology Corporation |
2 / 14 page RT8082 2 DS8082-00 November 2012 www.richtek.com © Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Functional Pin Description Pin No. Pin Name Pin Function 1, 12 LX Internal Power MOSFET Switches Output. Connect these pins to the inductor together. 2, 11 VIN Power Input. Decouple this pin to GND with two 10 μF capacitors. 3, 10, 13 (Exposed Pad) PGND Power Ground. The exposed pad must be soldered to a large PCB and connected to ground for maximum power dissipation. 4 AGND Analog Ground. Provides the return path for control circuit and internal reference. 5 BIAS Analog Power Input. Decouple this pin to AGND with a minimum 0.1 μF ceramic capacitor. 6 FB Feedback Input. This pin is used to set the desired output voltage via an external resistive divider. The feedback reference voltage is 1V typically. 7 NC No Internal Connection. 8 EN Enable Control Input. Floating this pin or connecting this pin to logic high will enable the device and pulling this pin to logic low will disable the device. 9 PGOOD Power Good Indicator. This pin is an open drain logic output that is pulled to ground when the output voltage is within ±7% of regulation point. Pin Configurations (TOP VIEW) WDFN-12E 3x3 LX VIN BIAS AGND LX VIN PGND EN PGOOD PGND FB NC 11 10 9 1 2 3 4 5 12 67 8 13 |
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