LP8733-Q1 datasheet(65/86 Pages) TI2

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considered, the minimum effective output capacitance to ensure good performance is 0.4 μF per LDO input at

maximum input voltage including tolerances, ambient temperature range, and aging. See Table 8-5.

Note: the output capcitor requirements excludes any capacitance seen at the point of load and only refers to the

capacitance seen close to the device. Additional capacitance placed near the load can be supported, but the

end applcation system should be evaluated for stability and to ensure the sequencing requirements are met. The

shutdown decay will be longer with higher output capcitance, which can also impact the startup time. Total output

capacitance should be kept below 100 µF.

The output capacitance must be smaller than the input capacitance to ensure the stability of the LDO. With a

1-μF output capacitor, TI recommends using at least a 2.2-μF input capacitor; with a 2.2-μF output capacitor at

least 4.7-μF input capacitance.

The VANA input is used to supply analog and digital circuits in the device. See Table 8-6 for recommended

components from for VANA input supply filtering.

Table 8-5. Recommended LDO Output Capacitors (X7R Dielectric)

MANUFACTURER

PART NUMBER

VALUE

CASE SIZE

DIMENSIONS L × W × H (mm)

VOLTAGE RATING

Murata

GCM188R71C105KA64

1 µF (10%)

0603

1.6 × 0.8 × 0.8

16 V

Murata

GCM188R70J225KE22

2.2 µF (10%)

0603

1.6 × 0.8 × 0.8

6.3 V

Table 8-6. Recommended Supply Filtering Components

MANUFACTURER

PART NUMBER

VALUE

CASE SIZE

DIMENSIONS L × W × H (mm)

VOLTAGE RATING

Murata

GCM155R71C104KA55

100 nF (10%)

0402

1 × 0.5 × 0.5

16 V

Murata

GCM188R71C104KA37

100 nF (10%)

0603

1.6 × 0.8 × 0.8

16 V

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LP8733-Q1

SNVSB64A – JUNE 2019 – REVISED JUNE 2021

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