RT8089A データシートの表示（PDF） - Richtek Technology
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RT8089A Datasheet PDF : 15 Pages
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RT8089A
Pin Configurations
(TOP VIEW)
FB 1
VCC 2
VIN 3
GND 4
GND 5
10 EN
9 PGOOD
8 NC
7 SW
11 6 SW
WDFN-10L 3x3
Functional Pin Description
Pin No.
Pin Name
Pin Function
1
FB
Feedback Input. This pin receives the feedback voltage from a resistive
voltage divider connected across the output.
2
VCC
Supply Voltage Input. Decouple this pin to GND with at least 1μF ceramic cap.
3
VIN
Power Input. Decouple this pin to GND with at least 10μF ceramic cap.
4, 5,
11 (Exposed Pad)
GND
Ground. The exposed pad must be soldered to a large PCB and connected to
GND for maximum power dissipation.
6, 7
SW
Switch Node. Connect this pin to the inductor.
8
NC
No Internal Connection.
Power Good Indicator. This pin is an open drain logic output. The PGOOD will
9
PGOOD
be pulled to ground when the output voltage is less than 90% of the target
output voltage.
10
EN
Enable Control Input. Pull high the EN pin to turn on the converter.
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
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2
is a registered trademark of Richtek Technology Corporation.
DS8089A-01 March 2013
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