Linear Technology LT8611, Manual

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LT8611
8
8611fa
For more information www.linear.com/LT8611
TYPICAL PERFORMANCE CHARACTERISTICS
Start-Up Dropout Performance
V
ISP
-V
ISN
Sense Voltage
IMON Voltage
V
ISP
-V
ISN
Sense Voltage
IMON Voltage
Start-Up Dropout Performance Transient Response
ICTRL Voltage
IMON Voltage
I
L
1A/DIV
V
OUT
200mV/DIV
50µs/DIV
50mA TO 1A TRANSIENT
12V
IN
, 5V
OUT
C
OUT
= 47µF
8611 G37
V
IN
2V/DIV
V
OUT
2V/DIV
100ms/DIV
2.5Ω LOAD
(2A IN REGULATION)
8611 G38
V
IN
V
OUT
V
IN
2V/DIV
V
OUT
2V/DIV
100ms/DIV
20Ω LOAD
(250mA IN REGULATION)
8611 G39
V
IN
V
OUT
ICTRL VOLTAGE (mV)
0
0
MAX V
ISP
-V
ISN
VOLTAGE (mV)
10
20
30
40
50
60
500 1000 1500 2000
8611 G40
TEMPERATURE (°C)
–50
MAX V
ISP
-V
ISN
VOLTAGE (mV)
51
52
53
150
8611 G41
50
49
48
46
0 50 100 –25 25 75 125
47
55
54
V
ISP
= 0V
V
ISP
= 3V
ISP-ISN COMMON MODE (V)
0
45
MAX V
ISP
-V
ISN
VOLTAGE (mV)
46
48
49
50
55
52
1 2 2.5 3
8611 G42
47
53
54
51
0.5 1.5 3.5
V
ISP
-V
ISN
(mV)
0
0
V
IMON
(mV)
200
400
600
800
1000
1200
10 20 30 40
8611 G43
50
V
SYNC
= 3.3V
V
ISP
-V
ISN
(mV)
0
0
V
IMON
(mV)
200
400
600
800
1000
1200
10 20 30 40
8611 G44
50
V
SYNC
= 0V
ISP-ISN COMMON MODE (V)
0
0.90
IMON VOLTAGE (V)
0.95
1.00
1.05
1.10
0.5 1 1.5 2
8611 G45
2.5 3 3.5
V
ISP
-V
ISN
= 50mV