Pin configuration

STOD03AS

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DocID022614 Rev 2

2

Pin configuration

Figure 3. Pin configuration (top view)

Table 3. Pin description

Pin name

Pin n°

Description

1

Switching node of the step-up converter

PGND

2

Power ground pin

3

Step-up converter output voltage (4.6V)

NC

4

Not internally connected

AGND

5

Signal ground pin. This pin must be connected to the power ground pin

6

Voltage reference output. 1µF bypass capacitor must be connected

between this pin and AGND

7

Negative voltage setting pin

EN

8

shutdown mode

9

Inverting converter output voltage (Default - 4.9V)

10

Switching node of the inverting converter

11

Analogic input supply voltage

12

Power input supply voltage

Exposed

pad

Internally connected to AGND. Exposed pad must be connected to AGND

and PGND in the PCB layout in order to guarantee proper operation of the

device