LT3491 LINER [Linear Technology], LT3491 Datasheet - Page 3

• Manufacturer Part Number: LT3491
• Manufacturer: LINER [Linear Technology]

Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR A CE CHARACTERISTICS
350
300
250
200
150
100
240
200
160
120
80
40
50
0
0
0
0
Switch Saturation Voltage (V
Sense Voltage (V
vs V
50
CTRL
500
100
SWITCH CURRENT (mA)
100mA/DIV
50mV/DIV
150
10V/DIV
V
CTRL
V
V
1000
CAP
200
SW
I
L
CAP
(mV)
V
FRONT PAGE
APPLICATION CIRCUIT
Switching Waveform
IN
250
– V
= 3.6V
1500
300
LED
W
)
350
CESAT
3491 G04
3491 G01
2000
200ns/DIV
U
400
)
350
300
200
150
100
400
250
30
29
28
27
26
25
50
0
0
Schottky Forward Voltage Drop
0
Open-Circuit Output Clamp
Voltage
3491 G07
200
SCHOTTKY FORWARD DROP (mV)
3
400
V
IN
600
6
(V)
Note 2: The LT3491E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
200mA/DIV
800
5V/DIV
5V/DIV
V
9
V
CTRL
CAP
1000
I
L
(T
3491 G05
Transient Response
V
FRONT PAGE
APPLICATION CIRCUIT
3491 G02
IN
A
= 3.6V
1200
= 25°C unless otherwise specified)
12
1ms/DIV
15
12
6
5
4
3
2
1
0
9
6
3
0
0
0
Shutdown Current (V
Input Current in Output Open
Circuit
3
3
3491 G08
V
V
IN
IN
6
6
(V)
(V)
CTRL
LT3491
9
= 0V)
9
3491 G06
3491 G03
3491fa
3
12
12