Datasheet

4
LT1680
I
12VIN
Supply Current
vs Temperature Gate Transition Time vs C
GATE
12V
IN
SUPPLY VOLTAGE (V)
10
I
12VIN
SUPPLY CURRENT (mA )
1514
1680 G02
11
12
13
40
35
30
25
20
15
C
G
= 10nF
C
G
= 4.7nF
C
G
= 3.3nF
C
G
= 1nF
f
O
= 150kHz
T
A
= 25°C
I
12VIN
Supply Current
vs 12V
IN
Supply Voltage
5V
REF
Short-Circuit Current
vs Temperature
TEMPERATURE (°C)
–50
5V
REF
SHORT-CIRCUIT CURRENT (mA)
60
55
50
45
40
35
30
25 75
1680 G04
–25 0
50 100 125
5V
REF
= 0V
I
12VIN
Shutdown Current
vs Temperature
TEMPERATURE (°C)
–50
I
12VIN
SHUTDOWN CURRENT (µA)
190
180
170
160
150
140
130
25 75
1680 G05
–25 0
50 100 125
V
REF
Voltage
vs Temperature
TEMPERATURE (°C)
–50
V
REF
VOLTAGE (V)
1.252
1.251
1.250
1.249
1.248
1.247
1.246
25 75
1680 G06
–25 0
50 100 125
5V
REF
Voltage
vs Temperature
Error Amplifier Voltage Gain
vs Temperature
Error Amplifier Transconductance
vs Temperature
TEMPERATURE (°C)
–50
5V
REF
VOLTAGE (V)
5.01
5.00
4.99
4.98
25 75
1680 G07
–25 0
50 100 125
TEMPERATURE (°C)
–50
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
25 75
1680 G08
–25 0
50 100 125
ERROR AMPLIFIER VOLTAGE GAIN (kV/V)
TEMPERATURE (°C)
–50
ERROR AMPLIFIER TRANSCONDUCTANCE (m )
2.6
2.4
2.2
2.0
1.8
1.6
1.4
25 75
1680 G09
–25 0
50 100 125
Ω
TEMPERATURE (°C)
–50
I
12VIN
SUPPLY CURRENT (mA)
100
1680 G01
050
19
18
17
16
15
14
13
12
11
–25 25 75 125
C
GATE
(pF)
0
30
GATE TRANSITION TIME (ns)
50
70
90
110
t
f
t
r
130
150
T
A
= 25°C
2500 5000 7500 10000
1680 G03
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TYPICAL PERFOR A CE CHARACTERISTICS
UW