SP6682 Datasheet, PDF (4/12 Pages) Sipex Corporation – High Efficiency Charge Pump Regulator for White LEDs

PERFORMANCE CHARACTERISTICS
Refer to the typical application circuit, T_AMB = 25°C, I_O = 60mA unless otherwise specified.
EN/PWM
V_OUT
5V/DIV
1V/DIV
Figure 1. Output voltage turn-on time
90
80
70
60
50
40
30
20
10
0
2.7
3
3.3
3.6
3.9
4.2
Input Voltage(V)
Figure 2. Power efficiency vs. input voltage
V_IN
V_OUT
50mV/DIV
50mV/DIV
Figure 3. X2 mode voltage ripple when V_IN = 2.7V
0.34
0.33
0.32
0.31
0.3
0.29
0.28
0.27
0.26
2.7
3
3.3
3.6
3.9
4.2
V_IN (V)
Figure 4. Feedback pin voltage vs. input voltage
V_IN
V_OUT
50mV/DIV
50mV/DIV
Figure 5. X1.5 mode voltage ripple when V = 3.3V
IN
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.7
3
3.3
3.6
3.9
4.2
V_IN (V)
Figure 6. Quiescent current vs. input voltage
Date: 5/5/04
SP6682 High Efficiency Charge Pump Regulator for White LEDs
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© Copyright 2004 Sipex Corporation