CS8129
Typical Performance Characteristics Continued
Dropout Voltage vs. Output Current
Quiescent Current vs. Output Current
900
QUIESCENT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0
100
200
300
400
500
600
700
800
0
100
200
300
400
500
600
700
800
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
V
IN
= 14V
25ûC
125ûC
800
DROPOUT VOLTAGE (mV)
700
600
500
400
300
200
100
0
-40ûC
125ûC
25ûC
-40ûC
Ripple Rejection
I
OUT
= 250mA
Output Capacitor ESR
10
3
10
2
10
1
ESR (ohms)
C
OUT
= 47/68mF
Stable Region
90
80
70
REJECTION (dB)
C
OUT
= 10mF, ESR = 1 & 0.1mF,
ESR = 0
60
50
40
30
20
10
0
10
0
10
1
10
2
10
3
10
4
10
5
10
6
10
7
10
8
FREQUENCY (Hz)
C
OUT
= 10mF, ESR = 10W
C
OUT
= 10mF, ESR = 1W
10
0
10
-1
10
-2
10
-3
C
OUT
= 47mF
C
OUT
= 68mF
10
-4
10
0
10
1
10
2
10
3
Output Current (mA)
Test & Application Circuit
V
IN
C
IN
*
100nF
V
OUT
CS8129
Delay
RESET
R
RST
4.7kW
C
OUT
**
10mF to 100mF
Gnd
Delay
0.1mF
*C
IN
required if regulator is far from the power source filter.
**C
OUT
required for stability.
4
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
