SP4446EK(2003) 查看數據表（PDF） - Signal Processing Technologies
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产品描述 (功能)
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SP4446EK
(Rev.:2003)
(Rev.:2003)
Signal Processing Technologies
SP4446EK Datasheet PDF : 10 Pages
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PERFORMANCE CHARACTERISTICS: Continued
Refer to the typical application circuit, TAMB = 25°C, unless otherwise specified.
250
1.25
1.24
200
1.23
150
1.22
100
1.21
1.20
50
1.19
0
1
2
3
4
5
6
7
8
Input Voltage (V)
1.18
-40
-15
10
35
60
85
Temperature (C)
Figure 13. IPK Current Limit vs. VIN
Figure 14. Feedback Voltage vs. Temperature
60
50
VIN
40
30
20
10
0
-40
-15
10
35
60
85
Temperature (C)
Figure 15. Switch Saturation Voltage VCESAT vs.
Temperature (ISW=50mA)
VOUT
IIN (100mA/DIV)
Figure 16. Startup Waveform (VIN=3.3V, VOUT=20V,
IOUT=2mA)
VSW
IL (0.1A/DIV)
IOUT (5mA/DIV)
VOUT (AC)
VOUT (AC)
VSW
Figure 17. Typical Switching Waveforms (VIN=3.3V,
VOUT=20V, IOUT=5mA)
Figure 18. Load Step Transient (VIN=3.3V, VOUT=20V,
1O=100µA∼5mA)
Rev. 7/14/03
SP4446 High Output Voltage Boost Regualtor, LCD Bias Regulator
© Copyright 2003 Sipex Corporation
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