SC195

10

Pin Descriptions

Pin

Pin Name

Pin Function

1

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.

2

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.

3

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.

4

OUT

Output voltage sense pin — output voltage regulation point (connection node of inductor and output

capacitor).

5

GND

Ground reference and power ground for the SC195.

6

LX

Switching output — connect an inductor between this pin and the load to filter the pulsed output current.

7

IN

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

8

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.