Datasheet

2007. 9. 7 14/16
KIA7905F/PI~KIA7924F/PI
Revision No : 3
Fig.1 Standard Test Circuit
Notes : (1) To specify an output voltage, substitute voltage value for
"XX"
(2) Required for stability. For value given, capacitor must be solid tantalum. If alumininum electrolitics are used,
at least ten times value shown should be selected. C
I
is required if regulator is located an appreciable distance
from power supply filter.
(3) To improve transient response. If large capacitors are used, a high current diode from input to output
KIA79XX
2
V
1
3
A
V
A
V
IN
C
1
V
O
C
0
I
O
2.2µF
1µF
A
1µF
O
2
V
C
2.2µF
1
KIA79XX
V
3
1
C
V
A
O
I
FILTER
10Hz~100kHz
NOISE
METE
R
KIA79XX
2
1
3
V
O
2.2µF
1
C
1µF
0
C
I
O
OSCILLOSCOPE
30cm
e =1V
f=120Hz
i
p-p
R.R.=20 og
e
o
e
i
(dB)
l
(2) (3)
<
=
V
IN
V
IN
Fig.2 V
NO
Test Circuit
Fig.3 Ripple Rejection Test Circuit