Table 8-2. Recommended Ceramic Input Capacitors

Vendor(1)

Dielectric

Part Number

Case Size

Capacitance (µF)(2)

Rated Voltage (V)

TDK

X7R

C3216X7R1H106K160AC

1206

10

50

Murata

X7S

GCM32EC71H106KA03K

1210

10

50

AVX

X7R

12105C106MAT2A

1210

10

50

Murata

X7R

GRM32ER71H106KA12L

1210

10

50

(1)

Consult capacitor suppliers regarding availability, material composition, RoHS and lead-free status, and manufacturing process

requirements for any capacitors identified in this table. See the Third-Party Products Disclaimer.

(2)

Nameplate capacitance values (the effective values are lower based on the applied DC voltage and temperature).

As discussed in Section 10, an electrolytic bulk capacitance (68 µF to 100 µF) provides low-frequency filtering

and parallel damping to mitigate the effects of input parasitic inductance resonating with the low-ESR, high-Q

ceramic input capacitors.

8.3.4 Output Capacitors

Table 8-1 lists the TLVM13660 minimum amount of required output capacitance. The effects of DC bias and

temperature variation must be considered when using ceramic capacitance. For ceramic capacitors in particular,

the package size, voltage rating, and dielectric material contribute to differences between the standard rated

value and the actual effective value of the capacitance.

type, or a combination of the two. See Table 8-3 for a preferred list of output capacitors by vendor.

Table 8-3. Recommended Ceramic Output Capacitors

Vendor(1)

Dielectric

Part Number

Case Size

Capacitance (µF)(2)

Voltage (V)

Murata

X7R

GRM31CZ71C226ME15L

1206

22

16

TDK

X7R

C3225X7R1C226M250AC

1210

22

16

Murata

X7R

GRM32ER71C226KEA8K

1210

22

16

TDK

X6S

C3216X6S1E226M160AC

1206

22

25

AVX

X7R

12103C226KAT4A

1210

22

25

Murata

X7R

GRM32ER71E226ME15L

1210

22

25

AVX

X7R

1210ZC476MAT2A

1210

47

10

Murata

X7R

GRM32ER71A476ME15L

1210

47

10

Murata

X6S

GRM32EC81C476ME15L

1210

47

16

TDK

X6S

C3216X6S0G107M160AC

1206

100

4

Murata

X6T

GRM31CD80J107MEA8L

1206

100

6.3

Murata

X7S

GRM32EC70J107ME15L

1210

100

6.3

(1)

Consult capacitor suppliers regarding availability, material composition, RoHS and lead-free status, and manufacturing process

requirements for any capacitors identified in the table. See the Third-Party Products Disclaimer.

(2)

Nameplate capacitance values (the effective values are lower based on the applied DC voltage and temperature)

8.3.5 Switching Frequency (RT)

(5)

Refer to Table 8-1 or use the simplified expression in Equation 6 to find a switching frequency that sets an

inductor ripple current of 25% to 40% of the 6-A module current rating at nominal input voltage:

(6)

TLVM13660

SLVSGJ6 – APRIL 2022

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