STOD14

Pin configuration

Doc ID 023562 Rev 1

5/22

2

Pin configuration

Figure 3.

Pin configuration (top view)

Table 3.

Pin description

Symbol

Pin

Description

1

Inverting converter output voltage (negative)

LX2

2

Switching node of the inverting converter

3

Power input supply voltage for inverting converter

4

Power input supply voltage for step-down converter

LX1

5

Switching node of the step-down converter

PGND

6

Power ground pin

7

Step-down converter output voltage (positive)

AGND

8

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

10

Analog input supply voltage

EN

11

Enable control pin. ON = HIGH. When pulled low, puts the device

into shutdown mode

12

Voltage reference output. Connect 1 µF bypass capacitor between

this pin and AGND

EXPOSED PAD

Exposed pad must be connected to AGND and PGND in the PCB

layout in order to guarantee proper operation of the device.

PGND