CS5203-3
Block Diagram
V
OUT
V
IN
Output
Current
Limit
Thermal
Shutdown
-
+
Error
Amplifier
Bandgap
Reference
Gnd
Typical Performance Characteristics
1.20
Reference Voltage Deviation (%)
1.15
1.10
Dropout Voltage (V)
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.00 0.30 0.60
0.90 1.20 1.50 1.80 2.10
Output Current (A)
2.40 2.70 3.00
T
CASE
= 25°C
TCASE
+0.3
+0.2
= 0°C
+0.1
0
T
CASE
= 125°C
-0.1
-0.2
-0.3
0
30
60
T
J
(°C)
90
120
Dropout Voltage vs. Output Current
Output Voltage Deviation vs Temperature
0.16
85
75
Output Voltage Deviation (%)
0.12
Ripple Rejection (dB)
65
55
45
35
25
0.08
T
CASE
= 125°C
T
CASE
= 25°C
0.04
T
CASE
= 25°C
I
OUT
= 1A
(V
IN
Ð V
OUT
) = 3V
V
RIPPLE
= 1.0V
PP
T
CASE
= 0°C
0.000
0
1.5
Output Current (A)
3
15
10
1
10
2
10
3
10
4
10
5
10
6
Frequency (Hz)
Load Regulation vs. Output Current
Ripple Rejection vs Frequency
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
