Datasheet

LT3684
6
3684f
V
C
Voltages
Minimum Input Voltage
Power Good Threshold
Switching Waveforms
(Discontinuous Operation)
Switching Waveforms
(Continuous Operation)
LOAD CURRENT (A)
0.001
INPUT VOLTAGE (V)
5.0
5.5
10
3684 G19
4.5
4.0
0.01
0.1
1
6.5
6.0
V
OUT
= 5V
T
A
= 25°C
L = 4.7µH
f = 800kHz
TEMPERATURE (°C)
–50
THRESHOLD VOLTAGE (V)
1.50
2.00
2.50
25 75 125
3684 G20
1.00
0.50
0
–25 0 50 100
CURRENT LIMIT CLAMP
SWITCHING THRESHOLD
TEMPERATURE (°C)
–50
THRESHOLD VOLTAGE (V)
1.160
1.180
1.200
25 75 125
3684 G21
1.140
1.120
1.100
–25 0 50 100
PG RISING
I
L
0.5A/DIV
V
SW
5V/DIV
V
OUT
10mV/DIV
3684 G22
1µs/DIV
V
IN
= 12V, FRONT PAGE APPLICATION
I
LOAD
= 140mA
I
L
0.5A/DIV
V
RUN/SS
5V/DIV
V
OUT
10mV/DIV
3684 G23
1µs/DIV
V
IN
= 12V, FRONT PAGE APPLICATION
I
LOAD
= 1A
TYPICAL PERFORMANCE CHARACTERISTICS
(T
A
= 25°C unless otherwise noted)