L6932

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Adjustable version

Figure 8. Demoboard Layout (Adjustable Version)

COMPONENTS SELECTION

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 47

µF is enough for any application but a

much lower value can be sufficient in many cases.

Output Capacitor

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

Tantalum, Speciality Polimer, 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.

Reference

Part Number

Description

Manufacturer

C1

C34Y5U1E106Z

10uF, 25V

TOKIN

C2

C34Y5U1E106Z

10uF, 25V

TOKIN

R1

5.6K, 1%, 0.25W

Neohm

R2

3.3K, 1%, 0.25W

Neohm

Manufacturer

Type

Cap Value (

µF)

Rated Voltage (V)

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