Typical Performance Characteristics Continued
Quiescent Current vs. Output Current
Dropout Voltage vs. Output Current
900
800
700
600
500
400
300
200
100
0
100
90
80
70
60
50
40
30
20
10
0
125ûC
25ûC
VIN = 14V
25ûC
125ûC
-40ûC
-40ûC
0
100 200 300 400 500 600 700 800
OUTPUT CURRENT (mA)
0
100 200 300 400 500 600 700 800
OUTPUT CURRENT (mA)
Ripple Rejection
Output Capacitor ESR
103
I
= 250mA
OUT
90
80
70
60
50
40
30
20
10
0
102
101
COUT= 10mF, ESR = 1 & 0.1mF,
ESR = 0
C
= 47/68mF
OUT
Stable Region
100
10-1
COUT= 10mF, ESR = 1W
C
= 47mF
OUT
10-2
C
= 68mF
OUT
COUT= 10mF, ESR = 10W
10-3
10-4
100 101 102 103 104 105 106 107 108
FREQUENCY (Hz)
101
102
103
100
Output Current (mA)
Test & Application Circuit
VOUT
VIN
C
*
IN
100nF
C
**
10mF to 100mF
RRST
4.7kW
OUT
CS8129
Delay
RESET
Gnd
Delay
0.1mF
*CIN required if regulator is far from the power source filter.
**COUT required for stability.
4
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
