ADP1610ARMZ-R7 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADP1610ARMZ-R7

1.2 MHz DC-to-DC Step-Up Switching Converter

Analog Devices 

ADP1610

For very low ESR capacitors, such as ceramic capacitors, the ripple

current due to the capacitance is calculated using the following

equation. Because the capacitor discharges during the on-time

(tON), the charge removed from the capacitor (QC) is the load

current multiplied by the on-time. The output voltage ripple

(ΔVOUT) is

ΔVOUT

= QC

COUT

=

I L × tON

COUT

(8)

where:

COUT is the output capacitance.

IL is the average inductor current.

t ON

=

D

FSW

(9)

and

D = VOUT − VIN

VOUT

(10)

Choose the output capacitor based on the following equation:

COUT

≥

IL

FSW

× (VOUT − VIN )

× VOUT × ΔVOUT

(11)

The following are recommended capacitor manufacturers:

• AVX

• Kyocera

• Murata

• Sanyo

• Taiyo–Yuden

• TDK

Rev. A | Page 12 of 20

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