SC121 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC121' PDF : 23 Pages View PDF
SC121
Pin Descriptions
MLPD Pin #
1
2
3
4
5
6
T
Pin Name
LX
GND
IN
EN
FB
OUT
Thermal
Pad
Pin Function
Switching node — connect an inductor from the input supply to this pin.
Signal and power ground.
Battery or supply input — requires an external 10μF bypass capacitor (capacitance evaluated while under
V bias) for normal operation.
IN
Enable digital control input — active high.
Feedback input — connect to GND for preset 3.3V output. A voltage divider is connected from OUT to GND
to adjust output from 1.8V to 5.0V.
Output voltage pin — requires an external 10μF bypass capacitor (capacitance evaluated while under V
OUT
bias) for normal operation.
Thermal Pad is for heat sinking purposes — connect to ground plane using multiple vias — not connected
internally.
14
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