SC120(2009) Просмотр технического описания (PDF) - Semtech Corporation

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SC120
(Rev.:2009)

Low Voltage Synchronous Boost Converter

Semtech Corporation 

SC120

Pin Descriptions

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 input and damping switch connection.

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 4.0V.

Output voltage supply pin — requires an external 10μF bypass capacitor (while under V bias) for normal

OUT

operation.

CONFIDENTIAL Thermal Pad is for heat sinking purposes — connect to ground using multiple vias — not connected internally.

PRELIMINARY

11

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