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XRP6670EVB Datasheet(PDF) 4 Page - Exar Corporation |
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XRP6670EVB Datasheet(HTML) 4 Page - Exar Corporation |
4 / 13 page X XR RP P6 66 67 70 0 3 3A A 3 30 00 0k kH Hz z- -2 2..5 5M MH Hz z S Sy yn nc ch hr ro on no ou us s S Stte ep p D Do ow wn n R Re eg gu ulla atto or r © 2013 Exar Corporation 4/13 Rev. 1.0.1 PIN DESCRIPTION Name Pin Number Description SHDN/RT 1 Shutdown and Oscillator resistor input. Connect a resistor to GND from this pin to set the switching frequency. Forcing this pin to VDD shuts down the device. GND 2 Signal ground. All small-signal ground, such as the compensation components and exposed pad should be connected to this, which in turn connects to PGND at one point. SW 3, 4 Power switch output pin. This pin is connected to the inductor. PGND 5 Power Ground Signal. Connect this signal as close as possible to the input and output capacitors CIN and COUT. PVDD 6 Power Input Supply Pin. Decouple this pin to PGND (pin 5) with a capacitor. VDD 7 Signal Input Supply Pin. Decouple this pin to GND (pin 2) with a capacitor. Typically, VDD and PVDD are connected together. PGOOD 8 Power Good Flag. This is an open drain output and is pulled to ground if the output voltage is out of regulation. FB 9 Feedback pin. An external resistor divider connected to FB programs the output voltage. COMP 10 Compensation pin. This is the output of transconductance error amplifier and the input to the current comparator. It is used to compensate the control loop. Connect an RC network form this pin to GND. Exp. Pad Exp. Pad Connect to GND signal (pin 2). ORDERING INFORMATION Part Number Junction Temperature Range Marking Package Packing Quantity Note 1 Note 2 XRP6670EHTR-F -40°C≤TJ≤+125°C 6670 YYWW XXX DFN10 3K/Tape & Reel Halogen Free XRP6670EVB XRP6670 Evaluation Board “YY” = Year – “WW” = Work Week – “X” = Lot Number; when applicable. |
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