Datasheet

LT3685
6
3685fb
TEMPERATURE (°C)
V
C
VOLTAGE (V)
1.50
2.00
2.50
3685 G19
1.00
0.50
0
CURRENT LIMIT CLAMP
SWITCHING THRESHOLD
–50 25–25 0 50 75 100 150125
LOAD CURRENT (A)
1
INPUT VOLTAGE (V)
3.0
3.5
1000
0
3685 G17
2.5
2.0
10 100 1000
5.0
4.5
4.0
V
OUT
= 3.3V
L = 4.7μH
f = 800kHz
1 1000
0
10 100 1000
LOAD CURRENT (A)
INPUT VOLTAGE (V)
5.0
5.5
3685 G18
4.5
4.0
6.5
6.0
V
OUT
= 5V
L = 4.7μH
f = 800kHz
TEMPERATURE (°C)
THRESHOLD VOLTAGE (%)
85
90
95
3685 G20
80
75
–50 25–25 0 50 75 100 150125
3685 G21
I
L
0.5A/DIV
V
SW
5V/DIV
V
OUT
10mV/DIV
V
IN
= 12V; FRONT PAGE APPLICATION
I
LOAD
= 110mA
1μs/DIV
3685 G22
I
L
1A/DIV
V
SW
5V/DIV
V
OUT
10mV/DIV
V
IN
= 12V; FRONT PAGE APPLICATION
I
LOAD
= 1A
1μs/DIV
Minimum Input Voltage
Minimum Input Voltage
V
C
Voltages
Power Good Threshold
Switching Waveforms;
Discontinuous Operation
Switching Waveforms;
Continuous Operation
T
A
= 25°C unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS