L99VR02XP datasheet(24/50 Pages) STMICROELECTRONICS

부품명	L99VR02XP

상세설명	Dual automotive linear voltage regulator with configurable output voltage (2x250 mA current capability)

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제조업체	STMICROELECTRONICS [STMicroelectronics]

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Figure 41. Ishort versus Rsh

100

150

200

250

300

350

400

100

200

300

400

500

600

700

800

Rsh[KΩ]

-40 C

25 C

150 C

Open pins (no resistance on the Ishort_LDO1,2 pins), is seen as a max resistance corresponding to the maximum

Ishort current.

4.3

Output voltage selection

The L99VR02XP can provide one out of 8 different output voltages for each of the two outputs. The combination

of three digital input selectors (SELx_LDOy) determines the output voltage according to the following truth table.

Table 16. Truth table

VO_LDO1,2

SEL1_LDOY

SEL2_LDOY

SEL3_LDOY

3.3

2.8

2.5

1.8

1.5

1.2

0.8 (Default)

The SELx_LDOy pins configuration is acquired at the device startup (EN_LDO1,2 from low to high) and once

configuration is acknowledged, it cannot be changed until the next EN_LDO1,2 transition.

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

L99VR02XP

Application information

DS14686 - Rev 1

page 24/50

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