Datasheet

4
LTC3704
3704fb
NFB Voltage vs Temp NFB Voltage Line Regulation NFB Pin Current vs Temperature
TEMPERATURE (°C)
–50
NFB VOLTAGE (V)
–1.23
–1.24
150
3704 G01
–1.22
–1.21
0
50
100
–25
25
75
125
–1.25
V
IN
(V)
0
–1.229
NFB VOLTAGE (V)
–1.230
–1.231
5101520
3704 G02
25 30 35
Shutdown Mode I
Q
vs V
IN
Burst Mode I
Q
vs V
IN
V
IN
(V)
0
0
SHUTDOWN MODE I
Q
(μA)
10
20
10 20
30
40
3704 G04
30
Shutdown Mode I
Q
vs Temperature
TEMPERATURE (°C)
–50
0
SHUTDOWN MODE I
Q
(μA)
5
10
15
20
–25 0 25 50
3704 G05
75 100 125 150
V
IN
= 5V
V
IN
(V)
0
0
Burst Mode I
Q
(μA)
100
200
300
400
600
10 20
3704 G06
30 40
500
Burst Mode I
Q
vs Temperature
Gate Drive Rise and Fall Time
vs C
L
Dynamic I
Q
vs Frequency
TEMPERATURE (°C)
–50
0
Burst Mode I
Q
(μA)
200
500
0
50
75
3704 G07
100
400
300
–25 25
100
125
150
FREQUENCY (kHz)
0
0
I
Q
(mA)
2
6
8
10
800
18
3704 G08
4
400 1200
600
200 1000
12
14
16
C
L
= 3300pF
I
Q(TOT)
= 550μA + Qg • f
C
L
(pF)
0
0
TIME (ns)
10
20
30
40
60
2000
4000 6000 8000
3704 G09
10000 12000
50
RISE TIME
FALL TIME
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
–50
NFB CURRENT (μA)
8.0
7.9
7.8
7.7
7.6
7.5
7.4
7.3
7.2
7.1
7.0
–25
250 50 10075
3704 G03
125 150