Datasheet

CAT3637
http://onsemi.com
6
TYPICAL PERFORMANCE CHARACTERISTICS
(V
IN
= 3.6 V, I
OUT
= 120 mA (6 LEDs at 20 mA), C
IN
= C
OUT
= C
1
= C
2
= 1 mF, T
AMB
= 25°C unless otherwise specified.)
Figure 8. Switching Frequency vs.
Temperature
Figure 9. Output Resistance vs. Input Voltage
TEMPERATURE (°C) INPUT VOLTAGE (V)
806040200−20−40
0.6
0.7
0.8
0.9
1.0
1.1
1.2
2.02.53.03.54.04.55.05.5
0
2
4
6
8
10
Figure 10. Power Up in 1x Mode Figure 11. Power Up in 1.33x Mode
Figure 12. Power Up in 1.5x Mode Figure 13. Power Up in 2x Mode
SWITCHING FREQUENCY (MHz)
OUTPUT RESISTANCE (W)
1.5x Mode
1.33x, 2x Mode
1x
1.33x
1.5x
2x
V
F
= 3.3 V