Data Sheet

ADP2360

Rev. 0 | Page 13 of 15

INDUCTOR SELECTION

The value of the selected inductor in the ADP2360 application

affects the efficiency, switching frequency, and output voltage

ripple. Larger value inductors tend to give improved efficiency

although for a given package size, the increased DCR and core

losses eventually dominate. Using a smaller value inductor gives a

higher switching frequency and reduced output voltage ripple, but

may decrease the overall efficiency due to increased switching losses.

that allows the designer to optimize the efficiency for the applica-

tion operating conditions and reduce the required inductor size.

Inductors in the 100 µH to 600 µH range are recommended.

Take care to select a compatible inductor with a sufficient

current rating, saturation current, and low dc resistance. The

current rating of the inductor must be greater than the maximum

OUTPUT CAPACITOR SELECTION

The output capacitor selection affects the output voltage ripple

according to the following equation:

SW

OUT

OUT

OUT

f

C

I

V

×

=

∆

(5)

The ADP2360 is designed for operation with ceramic capacitors,

because these have a small footprint and low equivalent series

resistance (ESR) values, giving the lowest output voltage ripple.

An output capacitance of 10 µF is suggested for most applications.

This value can be increased to reduce output voltage ripple.

DESIGN OPTIMIZATION

level to the maximum and use a high value low dc resistance

inductor (330 µH to 470µH are recommended). These choices

lead to a larger output voltage ripple that may be reduced with a

larger value, low ESR output capacitor.

For designs where the highest switching frequency is desired,

current. Use a 100 µH inductor with low dc resistance.

above double the required maximum output current. Use a

100 µH inductor with low dc resistance and a large value, low

ESR output capacitor.

RECOMMENDED COMPONENTS

The components specified in Table 6 are recommended for opera-

tion across the full input voltage range. All typical performance

characteristic data was measured using these components and

the adjustable voltage option of the ADP2360 with appropriately

chosen feedback resistors to select the required output voltage.

Table 6. Recommended Components

Component

Value

Part Number

Manufacturer

COUT

10 μF, 50 V

GRM32ER71H106KA12L

Murata

L1

100 μH

744043101

Würth

CIN

10 μF, 100 V

C5750X7S2A106M230KB

TDK

CFF

10 pF, 50 V

GRM1885C1H100JA01D

Murata