LP8733 datasheet(63/85 Pages) TI

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LP8733-Q1

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SNVSB64 – SEPTEMBER 2018

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Table 11. Recommended LDO Input Capacitors (X7R Dielectric)

MANUFACTURER

PART NUMBER

VALUE

CASE SIZE

DIMENSIONS L × W × H

(mm)

VOLTAGE RATING

Murata

GCM188R70J225KE22

2.2 µF (10%)

0603

1.6 × 0.8 × 0.8

6.3 V

Murata

GCM21BR71C475KA73

4.7 µF (10%)

0805

2 × 1.25 × 1.25

16 V

8.2.1.5 LDO Output Capacitor Selection

The output capacitors COUT_LDO0 and COUT_LDO1 are shown in the Typical Applications. A ceramic output

capacitor of minimum 1.0 μF is required. Place the output capacitor as close to the VOUT_LDOx pin and AGND

pin of the device as possible. Use X7R type of capacitors, not Y5V or F. DC bias characteristics of capacitors

must be considered, 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 12.

The output capacitance must be smaller than the input capacitance in order to ensure the stability of the LDO.

With a 1-μF output capacitor it is recommended to use at least 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 13 for recommended

components from for VANA input supply filtering.

Table 12. 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 13. 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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