SC202A

10

Pin Descriptions

Pin

Pin Name

Pin Function

1, 2, 3

LX

Switching node sense pin — for test purposes only

4

SNS

Output sense pin — connect to output capacitor for proper sensing of output voltage.

5

CTL3

Control bit 3 — see Table 1, page 2, for decoding. This pin has a weak pull-down resistor (> 1MΩ) in place at

reset that is removed when CTL3 is pulled above the logic high threshold.

6

CTL0

Control bit 0 — see Table 1, page 2, for decoding. This pin has a weak pull-down resistor (> 1MΩ) in place at

reset that is removed when CTL0 is pulled above the logic high threshold.

7

CTL1

Control bit 1 — see Table 1, page 2, for decoding. This pin has a weak pull-down resistor (> 1MΩ) in place at

reset that is removed when CTL1 is pulled above the logic high threshold.

8

CTL2

Control bit 2 — see Table 1, page 2, for decoding. This pin has a weak pull-down resistor (> 1MΩ) in place at

reset that is removed when CTL2 is pulled above the logic high threshold.

9

IN

Input power supply pin — connect a bypass capacitor from this pin to GND.

10

GND

Ground reference and power ground for the SC202A

11, 12, 13

OUT

Regulator output pin — connect a 10µF ceramic capacitor to this pin for proper filtering.