LT3581 LINER [Linear Technology], LT3581 Datasheet - Page 6

• Manufacturer Part Number: LT3581
• Description: 3.3A Boost/Inverting DC/DC Converter with Fault Protection
• Manufacturer: LINER [Linear Technology]

LT3581
Typical perForMance characTerisTics

1000
900
800
700
600
500
400
300
200
100
32
28
24
20
16
12
30
50
45
40
35
25
20
15
10
8
4
0
0
5
0
0
Gate Current vs SS Voltage
0
0
SHDN Pin Current
CLKOUT Rise Time at 1MHz
0.2
0.25
CLKOUT RISE TIME
CLKOUT CAPACITIVE LOAD (pF)
0.4
50
125°C
0.6
0.50
SHDN VOLTAGE (V)
SS VOLTAGE (V)
100
0.8
0.75
1.0
CLKOUT FALL TIME
–40°C
150
1.2
1.00
1.4
25°C
200
1.6
1.25
1.8 2.0
3581 G13
3581 G16
3581 G10
1.50
250
250
200
150
100
22
16
30
28
26
24
20
18
50
5
4
3
2
1
0
0
–50 –25
0
0
Commanded Current Limit vs
SS Voltage
SHDN Pin Current
V
IN
OVLO
5
0.2
10
0
TEMPERATURE (°C)
0.4
SHDN VOLTAGE (V)
–40°C
SS VOLTAGE (V)
25
15
0.6
50
20
25°C
75
25
0.8
125°C
100
30
1.0
125 150
35
T
3581 G17
3580 G11
3581 G14
A
= 25°C, unless otherwise noted.
1.2
40
2.32
2.20
1.40
1.38
1.36
1.34
1.32
1.30
1.28
1.26
1.24
1.20
2.40
2.38
2.36
2.34
2.30
2.28
2.26
2.24
2.22
1.25
1.00
0.75
0.50
0.25
1.22
0
–50 –25
–50 –25
–50 –25
SHDN Voltage Threshold with
Hysteresis
Internal UVLO
FAULT Input Voltage Threshold
with Hysteresis
SHDN RISING
0
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
25
FAULT FALLING
SHDN FALLING
FAULT RISING
50
50
50
75
75
75
100
100
100
125 150
125 150
125 150
3581 G12
3581 G15
3581 G18
3581f