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SC173EVB Fiches technique(PDF) 21 Page - Semtech Corporation

No de pièce SC173EVB
Description  3A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
PDF  27 Pages
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Fabricant  SEMTECH [Semtech Corporation]
Site Internet  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC173EVB Fiches technique(HTML) 21 Page - Semtech Corporation

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© 2010 Semtech Corporation
On the bottom layer, the resistor network composed of
R3 and R4 determines the output voltage. C7 is the feed
forward capacitor which helps to stabilize the circuit. R6
in series with C9 is connected to the LX pin (through the
via) to the power ground. C8 is the coupling capacitor
which injects the ramp signal generated on C9 to the FB
pin of the SC173. R7 is the pull up resistor for the PGOOD
pin.
21
SC173



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