STOD03B

Pin configuration

Doc ID 022613 Rev 1

5/22

2

Pin configuration

Figure 3.

Pin configuration (top view)

Table 3.

Pin description

Pin name

Pin n°

Description

1

Boost converter switching node

PGND

2

Power ground pin

3

Step-up converter output voltage (4.9V)

4

4.6V fixed LDO output

AGND

5

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

6

Voltage reference output. 1µF bypass capacitor must be connected

between this pin and AGND

7

Negative voltage setting pin.

EN

8

Enable control pin. High 1

1.

No pull-up/pull-down resistors are needed.

9

Inverting converter output voltage

10

Inverting converter switching node

11

Analogic input supply voltage

12

Power input supply voltage

Exposed

pad

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

layers in the PCB layout in order to guarantee proper operation of the

device