LT3695 Series
8
3695fa
Maximum V
IN
for Full Frequency
V
C
Voltages
Switching Waveforms,
60V Input Voltage Transient
Switching Waveforms,
Burst Mode Operation
Switching Waveforms,
Transition from Burst Mode
Operation to Full Frequency
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, unless otherwise noted.
LOAD CURRENT(A)
V
IN
(V)
3695 G31
0
30
35
1
20
25
15
10
5
0.1 0.2 0.3 0.4 0.5
0.7
0.9
0.8
0.6
40
T
A
= 85˚C
T
A
= 25˚C
V
OUT
= 5V
L = 4.7μH
f = 2MHz
SYNC = 5V
Switching Waveforms,
Full Frequency Continuous
Operation
TEMPERATURE (°C)
–50
V
C
VOL
TAGE (V)
2.5
1.5
0.5
2.0
1.0
0
0
50
–25
25
100
3695 G32
150
75
125
CURRENT LIMIT CLAMP
SWITCHING THRESHOLD
5ms/DIV
V
SW
10V/DIV
V
OUT
5V/DIV
V
IN
20V/DIV
V
IN
= 12V, FRONT PAGE APPLICATION
I
LOAD
= 500mA
3695 G33
5μs/DIV
V
SW
5V/DIV
V
OUT
20mV/DIV
I
L
0.2A/DIV
V
IN
= 12V, FRONT PAGE APPLICATION
I
LOAD
= 5mA
3695 G34
1μs/DIV
V
SW
5V/DIV
V
OUT
20mV/DIV
I
L
0.2A/DIV
3695 G35
V
IN
= 12V, FRONT PAGE APPLICATION
I
LOAD
= 55mA
1μs/DIV
V
SW
5V/DIV
V
OUT
20mV/DIV
I
L
0.5A/DIV
3695 G36
V
IN
= 12V, FRONT PAGE APPLICATION
I
LOAD
= 500mA
Maximum V
IN
for Full Frequency
Maximum V
IN
for Full Frequency
LOAD CURRENT(A)
0
V
IN
(V)
30
35
1
3695 G29
20
25
15
10
5
0.1 0.2 0.3 0.4 0.5
0.7
0.9
0.8
0.6
40
T
A
= 85˚C
V
OUT
= 3.3V
L = 10μH
f = 800kHz
SYNC = 3.3V
T
A
= 25˚C
LOAD CURRENT(A)
V
IN
(V)
3695 G30
0
30
35
1
20
25
15
10
5
0.1 0.2 0.3 0.4 0.5
0.7
0.9
0.8
0.6
40
T
A
= 85˚C
V
OUT
= 5V
L = 10μH
f = 800kHz
SYNC = 5V
T
A
= 25˚C
LOAD CURRENT (mA)
1
INPUT VOL
TAGE (V)
5.5
5.0
6.0
1000
3695 G28
4.5
4
10
100
6.5
V
OUT
= 5V
L = 10μH
f = 800kHz
Minimum Input Voltage
