Figure 30. Ishort versus Rsh

Open pin (no resistance on the Ishort pin), is seen as a max resistance corresponding to the maximum Ishort

current.

4.3

Output voltage selection

The L99VR01 can provide one out of 8 different output voltages. The combination of three digital input selectors

(SELx) determines the output voltage according to the following truth table.

Table 11. Truth table

VO

SEL1

SEL2

SEL3

5

1

1

1

3.3

1

1

0

2.8

1

0

1

2.5

1

0

0

1.8

0

1

1

1.5

0

1

0

1.2

0

0

1

0.8 (Default)

0

0

0

The SELx pins configuration is acquired at the device start-up (EN transition from low to high) and once

configuration is acknowledged, it cannot be changed until next EN transition.

When all the pins are left not connected, the default configuration will be selected.

L99VR01

Application information

DS13649 - Rev 4

page 17/40