4

8 -

Rev.1.2

http://www.elm-tech.com

■Marking

■Application notes

PWM Control

ELM612DA is DC/DC converter which consists pulse-width modulation (PWM) system. In converters of

ELM612DA, the pulse width varies according toe the load current, within the range from 0 to 100%. The ripple

voltage produced by switching can easily be removed through the filter since switching frequency remains con-

stant; ELM612DA is capable of providing low-ripple power within broad ranges of input voltage and load cur-

rent.

■Test circuits

VIN

SW

FB

EN

VC

L=47�H

Cc=

0.1�F

ELM612DA

R1

R2

GND

RL

Cout=

330�F

Vin

Cin=

330�F

C1

D

Vout

C2

1

5, 6

7, 8

3

2

4

SOP-8

Mark

Content

a to s

Assembly lot No.:

0 to 9 and A to Z repeated

(I,O,X excepted)