
CAT37
TYPICAL CHARACTERISTICS
(V IN = 3.6 V, T AMB = 25 ° C, C IN = 4.7 m F, C OUT = 1 m F, L = 6.8 m H, unless otherwise specified.)
90
86
85
80
75
84
82
80
LOAD = 20 mA
LOAD = 15 mA
LOAD = 10 mA
70
3 LEDs at 15 mA
VOUT = 10 V
78
65
76
LOAD = 3 LEDs
VIN = 3.6 V
60
2
3
4
5
6
74
? 50
? 25
0
25
50
75
100
INPUT VOLTAGE (V)
Figure 8. Efficiency vs. Input Voltage
Figure 10. V SW , I L , & V OUT Waveforms
TEMPERATURE ( ° C)
Figure 9. Efficiency vs. Temperature
Figure 11. PWM on SHDN Pin at 1 kHz
Figure 12. Enable Power ? Up Waveforms
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