April 05 REVISION 02

SHEET 6 OF 16

Technical Reference Note

Ultra Low Profile

AVC 20W Series

Basic Operation and Features

Test Circuit

C1: GRM42-6B106K10×3 parallel (MURATA)

: Electronic Load Device

Model EUL150

RL

: DC Power Supply

Model HP6621A, HP equivalent

Vin

Pin5,6,7 and 8 are connected inside of DC-DC converter.

However, please make sure that they are connected outside in order to prevent

malfunction by noise.

Open ON

Short OFF

RL

Vin

AVCxx

2,3,4

5,6,7,8

9,10,11

12

1

10uF X 3

=

=

R2

R1

C1

DC-DC Converter

10 : 1

100M Hz

Oscilloscope

* Ripple Noise Test

output

Probe

Ground