CP1032
Chopper Regulators
Fig.9 Load Regulation vs. Output Current
1.5
T
j
=25˚C
V
IN
=12V
V
O
=5V
Load regulation R
eg
L (%)
Fig.10 Line Regulation vs. Input Voltage
1.5
Line regulation R
eg
I (%)
1
1
0.5
0.5
0
0
T
j
=25°C
V
O
=5V
I
O
=0.5A
0
5
10
15
20
25
30
35
40
−0.5
0
0.5
1
1.5
2
2.5
3
Output current I
O
(A)
−0.5
Input voltage V
IN
(V)
Fig.11 Oscillation Frequency Fluctuation vs.
Junction Temperature
6
Fig.12 Overcurrent Detecting Level
Fluctuation vs. Junction Temperature
8
Overcurrent detecting level fluctuation (%)
Oscillation frequency fluctuation (%)
V
IN
=12V
V
O
=5V
6
4
2
0
−2
−4
−6
−8
−25
0
25
50
75
100
125
4
2
0
−2
−4
−6
−25
0
25
50
75
100
125
Junction temperature T
j
(°C)
Junction temperature T
j
(°C)
Fig.13 On Threshold Voltage vs. Junction
Temperature
3
Fig.14 Overcurrent Shutdown Threshold
Voltage vs. Junction Temperature
Overcurrent shutdown threshold voltage V
THIL
(V)
6
V
IN
=12V
5.5
5
4.5
4
3.5
3
−25
Threshold voltage V
TH (ON)
, V
THL
, V
THH
(V)
2.5
V
THH
V
IN
=12V
2
V
THL
1.5
1
V
TH (ON)
0.5
0
−25
0
25
50
75
100
125
0
25
50
75
100
125
Junction temperature T
j
(°C)
Junction temperature T
j
(°C)
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page
7
of 12
Rev 1.1 Aug.31, 2004
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
