Datasheet

LT1768
4
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
V
REF
VOLTAGE (V)
1768 G01
–50 –25 0 25
50
75
100 125
I
REF
= –1mA
TEMPERATURE (°C)
1.30
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
1.20
VOLTAGE (V)
1768 G02
–50 –25 0 25
50
75
100 125
V
RMIN(V)
V
RMAX(V)
I
RMIN
= –100µA
I
RMAX
= –100µA
TEMPERATURE (°C)
80
76
72
68
64
60
56
52
48
44
40
SHUTDOWN CURRENT (µA)
1768 G03
–50 –25 0 25
50
75
100 125
V
SHDN
= 0V
INPUT VOLTAGE (V)
10
8
6
4
2
0
SUPPLY CURRENT (mA)
1768 G04
05
10
15 20 25
V
RMIN
, V
RMAX
vs Temperature
Supply Current in Shutdown vs
Temperature
Supply Current vs Input Voltage
V
REF
vs Temperature
TEMPERATURE (°C)
7.40
7.30
7.20
7.10
7.00
6.90
6.80
6.70
6.60
6.50
6.40
SUPPLY CURRENT (mA)
1768 G05
–50 –25 0 25
50
75
100 125
INPUT VOLTAGE (V)
100
80
60
40
20
0
SHUTDOWN CURRENT (µA)
1768 G06
05
10
15 20 25
V
SHDN
= 0V
TEMPERATURE (
°C)
2.00
1.80
1.60
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0
SHUTDOWN VOLTAGE (V)
1768 G08
–50 –25 0 25
50
75
100 125
V
SHDN
ON TO OFF
V
SHDN
OFF TO ON
Supply Current vs Temperature
Supply Current in Shutdown vs
Input Voltage
Undervoltage Lockout Threshold
vs Temperature
SHDN Pull-Up Current
vs Input Voltage
Shutdown Threshold Voltage vs
Temperature
TEMPERATURE (°C)
8.20
8.10
8.00
7.90
7.80
7.70
7.60
7.50
7.40
7.30
7.20
UNDERVOLTAGE LOCKOUT (V)
1768 G09
–50 –25 0 25
50
75
100 125
V
UVL
ON TO OFF
V
UVL
OFF TO ON
INPUT VOLTAGE (V)
0
SHDN PULL-UP CURRENT (µA)
10
8
6
4
2
0
20
1768 G07
5
10
15
25
V
SHDN
= 0V