Pin configuration

STEF4S

4/22

DocID025259 Rev 2

2

Pin configuration

Figure 2. Pin configuration (top view)

Table 2. Pin description

Pin n°

Symbol

Note

1, 2, 3

Input supply voltage pin

Voltage clamping and UVLO selection pin (high state 5 V, low state 3.3 V)

5

GND

Ground pin (can be left floating if TAB is connected to GND)

6

SST

Soft-start time selection pin. A capacitor can be connected between this pin and GND to

increase the startup time

7

EN

Enable pin (active high)

8,9,10

Output voltage pin

EXP

GND

Exposed pad is internally connected to GND