CAT32
TYPICAL CHARACTERISTICS
V
IN
= 3.6V, T
AMB
= 25ºC , C
IN
= 4.7µF, C
OUT
= 1µF, L = 6.8µH, unless otherwise specified.
Switch Resistance vs. Input Voltage
1.0
1.0
Switch Resistance vs. Temperature
SWITCH RESISTANCE [Ω]
SWITCH RESISTANCE [Ω]
0.8
0.6
0.4
0.2
0.0
2
3
4
5
6
0.8
0.6
0.4
0.2
0.0
-50
-25
0
25
50
75
100
125
V
IN
= 3V
INPUT VOLTAGE [V]
TEMPERATURE [ºC]
LED Pin Voltage vs. LED current
300
V
SW
, I
L
, & V
OUT
Signal Waveforms
LED PIN VOLTAGE [mV]
250
200
150
100
50
0
0
8
16
24
32
40
LED CURRENT [mA]
85
80
Efficiency vs. Input Voltage
PWM on
¯¯¯¯¯
pin Waveform
SHDN
EFFICIENCY [%]
75
70
65
60
2
4 LEDs at 15m A
V
OUT
= 13V
3
4
5
6
INPUT VOLTAGE [V]
©
Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-5001 Rev. AD
CATALYST [ CATALYST SEMICONDUCTOR ]
