SP4446_06 Datasheet, PDF (8/10 Pages) Sipex Corporation – High Output Voltage Boost Regulator LCD Bias Regulator

PERFORMANCE CHARACTERISTICS
Refer to the typical application circuit, T_AMB = 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 16. I_PK Current Limit vs. V_IN
Figure 17. Feedback Voltage vs. Temperature
60
50
V_IN
40
30
20
10
0
-40
-15
10
35
60
85
Temperature (C)
Figure 18. Switch Saturation Voltage V_CESAT vs.
Temperature (I_SW=50mA)
V_OUT
I_IN (100mA/DIV)
Figure 19. Startup Waveform (V_IN=3.3V, V_OUT=20V,
I_OUT=2mA)
V_SW
I_L (0.1A/DIV)
I_OUT (5mA/DIV)
V_OUT (AC)
V_OUT (AC)
V_SW
Figure 20. Typical Switching Waveforms (V_IN=3.3V,
V_OUT=20V, I_OUT=5mA)
Figure 21. Load Step Transient (V_IN=3.3V, V_OUT=20V,
1_O=100µA∼5mA)
Date: 1/2/06
SP4446 High Output Voltage Boost Regualtor, LCD Bias Regulator
© Copyright 2006 Sipex Corporation
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