PQ6CU11X1APQ Datasheet, PDF (3/4 Pages) Sharp Electrionic Components – CMOS Step-up Chopper Regulator

Fig.4 Reference Voltage Fluctuation vs.
Input voltage
1.0
0.5
0
-0.5
-1.0
3
3.2 3.4 3.6 3.8 4 4.2
Input voltage VIN (V)
Fig.6 Efficiency vs. Input Voltage
100
95
2LEDｓ
90
85
3LEDs
80 ^4LEDs
75
70
65
60
3 3.2 3.4 3.6 3.8 4 4.2
Input voltage VIN(V)
Fig.8 On-Resistance vs. Junction
Temperature
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-50
VIN=VCTRL=3.6V
VSW=3.6V
ISW=250mA
-25 0 25 50 75 100 125
Junction temperature Tj (°C)
PQ6CU11X1APQ
Fig.5 Efficiency vs. LED Current
100
95
90
85
80
75
70
65
60
5
10
15
20
LED current IO(mA)
Fig.7 Oscillation Frequency Fluctuation vs.
Junction Temperature
10
VIN=VCTRL=3.6V
3LEDs / 20mA
CIN=2.2μF
5
CO=0.1μF
L=22μH
0
-5
-10
-50 -25
0 25 50 75 100 125
Junction temperature Tj (°C)
Fig.9 ON/OFF-state Voltage for Control vs.
Junction Temperature
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-50
VIN=3.6V
3LEDs / 5mA
CIN=2.2μF
CO=0.1μF
L=22μH
-25 0 25 50 75 100 125
Junction temperature Tj (°C)
Sheet No.: OP06059
3