Components selection

L6932H1.2

8/13

6.3

Component part list

7

Components selection

7.1

Input capacitor

The input capacitor value depends on a lot of factors such as load transient requirements,

input source (battery or DC/DC converter) and its distance from the input cap. Usually a

47µF is enough for any application but a much lower value can be sufficient in many cases.

7.2

Output capacitor

The output capacitor choice depends basically on the load transient requirements.

Tantalum, Special Polymer, POSCAP and aluminum capacitors are good and offer very low

ESR values. Multilayer ceramic caps have the lowest ESR and can be required for

particular applications. Nevertheless in several applications they are ok, the loop stability

issue has to be considered (see loop stability section).

Below a list of some suggested capacitor manufacturers

Table 6. Component par list

Reference

Part number

Description

Manufacturer

C1

GRM32ER6C226KE20B

22Uf, 16V

MURATA

C2

GRM32ER6C226KE20B

22Uf, 16V

MURATA

R1

N.M.

R2

0

Ω

R3

100K

Table 7. Suggested capacitor

Manufacturer

Type

Cap Value (µF)

Rated Voltage (V)

MURATA

CERAMIC

1 to 47

4 to 16

PANASONIC

CERAMIC

1 to 47

4 to 16

TAYO YUDEN

CERAMIC

1 to 47

4 to 16

TDK

CERAMIC

1 to 47

4 to 16

TOKIN

CERAMIC

1 to 47

4 to 16

SANYO

POSCAP

1 to 47

4 to 16

PANASONIC

SP

1 to 47

4 to 16

KEMET

TANTALUM

1 to 47

4 to 16