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