Datasheet

LT3514
5
3514fa
For more information www.linear.com/LT3514
Efficiency, Channel 4, f = 1MHz
Load Regulation Channels 1 and 4
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, unless otherwise noted.
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
1
3514 G04
20
0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
100
90
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 5V
LOAD CURRENT (A)
0
PERCENT ERROR (%)
–3.0
–2.0
1
3514 G09
–4.0
–5.0
0.2
0.1 0.3
0.5
0.4
0.6
0.7
0.9
0.8
0
–0.5
–1.0
–3.5
–2.5
–4.5
–1.5
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 5V
V
IN
= 12V
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
2
3514 G05
20
0
0.4
0.2 0.6
1
0.8
1.2
1.4
1.8
1.6
80
30
50
10
70
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 1.8V
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
2
3514 G06
20
0
0.4
0.2 0.6
1
0.8
1.2
1.4
1.8
1.6
90
30
50
10
70
80
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 2.5V
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
2
3514 G07
20
0
0.4
0.2 0.6
1
0.8
1.2
1.4
1.8
1.6
90
30
50
10
70
80
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 3.3V
LOAD CURRENT (A)
0
EFFICIENCY (%)
40
60
2
3514 G08
20
0
0.4
0.2 0.6
1
0.8
1.2
1.4
1.8
1.6
100
90
30
50
10
70
80
V
IN
= 6V
V
IN
= 12V
V
IN
= 24V
V
IN
= 36V
V
OUT
= 5V
Efficiency, Channel 3, f = 1MHz Efficiency, Channel 3, f = 1MHz
Efficiency, Channel 3, f = 1MHz
Efficiency, Channel 3, f = 1MHz
EN/UVLO Threshold
EN/UVLO Pin Current
V
EN/UVLO
(V)
0
I
EN/UVLO
(µA)
0.8
1.2
2.0
3514 G12
0
0.4
0.2 0.6
1.0
0.8 1.2
1.6
1.4
1.8
2.0
1.8
1.6
0.4
0.6
0.2
1.0
1.4
25°C
–45°C
150°C
TEMPERATURE (°C)
–50
THRESHOLD (V)
1.30
1.40
125
3514 G11
1.20
0
–25 25
75
50
100
1.60
1.55
1.50
1.25
1.35
1.45
FALLING
RISING
LOAD CURRENT (A)
0
PERCENT ERROR (%)
–0.5
2
3514 G10
–2.0
–2.5
0.5
1
1.5
0.5
0.0
–1.5
–1.0
V
IN
= 12V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 5V
Load Regulation Channel 3