Diodes ZXRD060 - Manual (Page 7)

NEW PROD
UC
T
ZXRD060
Document number
Applicatio
The following
capacitor C2 to
formed by C2
Both C1 and C
case of fig 9 an
Fi
Design gui
1. Determin
2. Determin
3. Determin
conventi
necessa
should b
4. Determin
5. Although
r: DS35359 Rev. 4
ons Informa
show some ty
o guarantee st
and R3 should
C2 should be
nd fig10, it mea
OU
V
V
3 R =
Fig.3 0.6V S
OU V
ig.5 0.6V Ser
de
ne I
OUT
and cho
ne I
B
from
(
B I =
ne I
R3
from
3 R I
onal reference
ry to determine
be adequate for
ne R3 from
3 R =
h unlikely to be
0
- 2
ation
ypical applicat
ability. C2 may
be greater tha
as close to the
ans the opto-co
REF
V
UT =
3 R I
OUT V IN V −
Shunt Regula
REF V UT =
ries LDO reg
oose a suitable
) 1 (min) FE h
(max) OUT I
+
(min) KA I B I + ≥
. Th
es. There is only
e an I
KA(min)
to e
r this.
3 R I
B V OUT V ( IN V + −
=
a problem, en
0.6V DUAL
w
tion examples
y range in value
an 1ms multipli
e ZXRD060 as
oupler will have
ator
ulator
e transistor taki
he design of th
y an output lea
ensure that the
) BE
.
sure that I
R3
≤
L ADJUSTA
7 of 12
www.diodes.com
for the ZXRD
e from 0.1µF to
ed by the feed
s possible and
e to be carefull
ng power dissi
e ZXRD060 eff
akage current w
device operat
15 mA.
ABLE PRE
m
A
Dio
D060. It is reco
o 10µF depend
back factor R2
connected to
y positioned to
V
Fig.4 1
Fig.6 1.0
ipation into con
ffectively mean
which is a maxi
es within its lin
CISION SH
A Product Li
odes Incorpo
ommended to
ding on the app
2/(R1 + R2).
it with the sho
o enable this.
⎜
⎝
⎛ +
=
1 REF V OUT V
3 R I
OU V IN V
3 R
−
=
1.0V Shunt R
⎜
⎝
⎛ +
= 1 REF V OUT V
0V Series LD
nsideration.
s there is no I
K
imum of 1µA. N
ear range at al
Z
HUNT REG
© Dio
ine of
orated
include the c
plication. The t
ortest possible
⎟
⎠
⎞
+
2 R
1 R
UT
Regulator
⎟
⎠
⎞
2 R
1 R
DO regulator
KA(min)
limitation
Nevertheless, it
ll times. I
KA(min)
ZXRD060
GULATOR
August 2011
odes Incorporated
ompensation
time constant
track. In the
as in
t is
≥ 10µA