Datasheet

LT1947
4
1947fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Switch 1 Saturation Voltage
0 0.2 0.4 0.6 0.8 1 1.2 1.4
SWITCH CURRENT (A)
SWITCH 1 SATURATION VOLTAGE (mV)
500
400
300
200
100
0
1947 G06
90°C
–45°C
25°C
0 0.1 0.2 0.3 0.4 0.5 0.6
SWITCH CURRENT (A)
SWITCH 2 SATURATION VOLTAGE (mV)
800
600
400
200
0
1947 G07
90°C
–45°C
25°C
Switch 2 Saturation Voltage
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
SW1 DUTY CYCLE (%)
100
90
80
70
60
50
1947 G08
SW1 Maximum Duty Cycle
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
OSCILLATOR FREQUENCY (MHz)
3.2
3.0
2.8
2.6
2.4
2.2
1947 G09
Oscillator Frequency
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
SW1 CURRENT (A)
1.8
1.6
1.4
1.2
1.0
0.8
1947 G04
SW1 Current Limit
–50 –25 0 25 50 75 100
TEMPERATURE (°C)
SW2 CURRENT (A)
1.0
0.8
0.6
0.4
0.2
0
1947 G05
SW2 Current Limit