zxre060a Diodes, Inc., zxre060a Datasheet - Page 8

• Manufacturer Part Number: zxre060a
• Description: 0.6v Adjustable Precision Shunt Regulator
• Manufacturer: Diodes, Inc.

APPLICATIONS INFORMATION
The following show some typical application examples for the ZXRE060. It is recommended to include the
compensation capacitor C2 to guarantee stability. C2 may range in value from 0.1µF to 10µF depending on the
application and the environment.
Both C1 and C2 should be as close to the ZXRE060 as possible and connected to it with the shortest possible
track. In the case of and, it means the opto-coupler will have to be carefully positioned to enable this.
Design guides
ZXRE060
Document Rev. 1
1. Determine I
2. Determine I
3. Determine I
4. Determine R3 from
5. Although unlikely to be a problem, ensure that I
Figure 5 0.6V series LDO regulator
I
is a maximum of 1µA. Nevertheless, it is necessary to determine an I
device operates within its linear range at all times. I
KA(min)
Figure 3 0.6V shunt regulator
limitation as in conventional references. There is only an output leakage current which
OUT
B
R3
V
V
OUT
OUT
from
from
and choose a suitable transistor taking power dissipation into consideration.
=
=
V
V
I
REF
REF
B
I
R
R
=
3
3
≥
(
=
h
I
I
FE
V
OUT
B
(min)
IN
+
(max)
I
−
KA
+
(
V
(min)
) 1
I
OUT
R
3
. The design of the ZXRE060 effectively means there is no
+
V
R
BE
3
)
www.diodes.com
=
.
V
IN
8 of 10
−
I
R
V
3
OUT
R3
≤ 15 mA.
Figure 6 1.0V series LDO regulator
KA(min)
Figure 4 1.0V shunt regulator
≥ 10µA should be adequate for this.
V
V
OUT
OUT
Diodes Incorporated
=
=
V
V
A Product Line of
REF
REF
KA(min)
⎛
⎜
⎝
⎛
⎜
⎝
1
1
+
+
R
R
R
R
to ensure that the
2
2
1
1
⎞
⎟
⎠
⎞
⎟
⎠
© Diodes Incorporated
March 2009
ZXRE060