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