SGM3133 Datasheet, PDF (6/13 Pages) SG Micro Corp – Driver with Low Dropout Current Source

SGM3133
4-Channel Charge Pump White LED Driver
with Low Dropout Current Source
TYPICAL PERFORMANCE CHARACTERISTICS
C_IN = C_OUT = C1 = C2 = 1μF, T_A = +25℃, unless otherwise noted.
Efficiency vs. Input Voltage
100
V_DIODE = 3.25V
90
80
70
60
50
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
Input Voltage (V)
Shutdown Current vs. Input Voltage
0.1
0.08
0.06
0.04
0.02
0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Enable Voltage vs. Input Voltage
1.3
1.2
1.1
Rising
1.0
0.9
Falling
0.8
0.7
0.6
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
6