ELM612DA 3A 36V PWM step down DC/DC converter
■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
4
2
1
VIN
EN
FB
Vout
5, 6
SW
L=47�H
Cc=
0.1�F
ELM612DA
GND
7, 8
R1
R2
3
VC
Vin
Cin=
330�F
RL
D
Cout=
330�F
C2
C1
■Marking
SOP-8
Mark
Content
ELM
612DA
abc
ELM612DA
Product name
Assembly lot No.:
000 to 999 repeated
abc
Rev.1.1
8 - 4
ELM [ ELM ELECTRONICS ]
