Datasheet

5
LT1769
1769fa
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
V
CC
(V)
0
∆V
REF
(V)
0.003
0.002
0.001
0
–0.001
–0.002
–0.003
5
10 15 20
1769 G04
25 30
ALL TEMPERATURES
V
REF
Line Regulation I
VA
vs ∆V
OVP
(Voltage Amplifier)
I
VA
(mA)
0
∆V
OVP
(mV)
4
3
2
1
0
0.8
1769 G05
0.20.1 0.3 0.5 0.7 0.9
0.4
0.6
1.0
T
J
= 125°C
T
J
= 25°C
V
C
Pin Characteristics
V
C
(V)
0 0.2 0.6 1.0 1.4 1.8
I
VC
(mA)
–1.20
–1.08
–0.96
–0.84
–0.72
–0.60
–0.48
–0.36
–0.24
–0.12
0
0.12
1.6
1769 G07
0.4
0.8
1.2
2.0
JUNCTION TEMPERATURE (°C)
0
DUTY CYCLE (%)
120
1769 G06
40 80
98
97
96
95
94
93
92
91
90
20 60 100 140
Maximum Duty Cycle
Reference Voltage
vs Temperature
JUNCTION TEMPERATURE
0
REFERENCE VOLTAGE (V)
2.470
2.468
2.466
2.464
2.462
2.460
2.458
25
50 75 100
1769 G09
125 150
V
PROG
(V)
0123
54
I
PROG
(mA)
6
0
–6
1769 G08
T
J
= 125°C
T
J
= 25°C
PROG Pin Characteristics