Datasheet

LTC3783
5
3783fb
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50
V
REF
(V)
1.15
1.20
1.25
3783 G01
1.10
1.05
1.00
0 50 100
150
V
IN
(V)
0
V
REF
(V)
1.229
1.231
40
3783 G02
1.227
1.225
10
20
30
1.235
1.233
I
REF
(mA)
0
V
REF
(V)
1.231
1.233
1.235
4
3783 G03
1.229
1.227
1.225
1
2
3
5
V
IN
= 12V
V
IN
= 2.5V
TEMPERATURE (°C)
–75
I
Q
(mA)
0.6
0.8
1.0
75
175
3783 G04
0.4
0.2
0
–25 25 125
1.2
1.4
1.6
V
IN
(V)
0
0
I
Q
(mA)
1.1
1.3
1.4
1.5
20
40
50
2.0
1.9
3783 G05
1.2
10 30
1.6
1.7
1.8
FREQUENCY (MHz)
0
0
DYNAMIC I
Q
(mA)
5
10
15
20
30
0.5 1
3783 G06
1.5
25
C
L
= 3300pF
I
Q(TOT)
= 1.3mA + Q
G
• f
V
IN
(V)
0
0.6
RUN THRESHOLDS (V)
0.7
0.9
1.0
1.1
1.6
1.3
10
20
3783 G07
0.8
1.4
1.5
1.2
30
40
RUN HIGH
RUN LOW
TEMPERATURE (°C)
–50
RUN THRESHOLDS (V)
1.32
1.34
1.36
150
3783 G08
1.30
1.28
1.22
0
50
100
1.26
1.24
1.40
1.38
RUN HIGH
RUN LOW
FREQUENCY (kHz)
10
R
T
(kΩ)
100
1 100 1000 10000
3783 G09
1
10
1000
V
REF
vs Temperature V
REF
Line Regulation V
REF
Load Regulation
I
Q
vs Temperature (PWMIN Low) I
Q
vs V
IN
(PWMIN Low) Dynamic I
Q
vs Frequency
RUN Thresholds vs V
IN
RUN Thresholds vs Temperature R
T
vs Frequency
T
A
= 25°C unless otherwise specified