CP1032
Chopper Regulators
Fig.9 Load Regulation vs. Output Current
Fig.10 Line Regulation vs. Input Voltage
1.5
1.5
Tj=25˚C
VIN=12V
VO=5V
1
1
0.5
0.5
0
0
Tj=25°C
VO=5V
IO=0.5A
−0.5
−0.5
0
5
10
15
20
25
30
35
40
0
0.5
1
1.5
2
2.5
3
Input voltage VIN (V)
Output current IO (A)
Fig.11 Oscillation Frequency Fluctuation vs.
Junction Temperature
Fig.12 Overcurrent Detecting Level
Fluctuation vs. Junction Temperature
8
6
6
VIN=12V
VO=5V
4
4
2
0
2
0
−2
−4
−2
−4
−6
−6
−8
−25
0
25
50
75
100
125
−25
0
25
50
75
100
125
Junction temperature Tj (°C)
Junction temperature Tj (°C)
Fig.13 On Threshold Voltage vs. Junction
Fig.14 Overcurrent Shutdown Threshold
Temperature
Voltage vs. Junction Temperature
3
6
VIN=12V
VIN=12V
VTHH
2.5
2
5.5
5
4.5
4
VTHL
1.5
1
VTH (ON)
3.5
3
0.5
0
−25
0
25
50
75
100
125
−25
0
25
50
75
100
125
Junction temperature Tj (°C)
Junction temperature Tj (°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
Http: www.ceramate.com.tw
Rev 1.1 Aug.31, 2004
Tel:886-3-3214525
Page 7 of 12
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
