LTC3411 Linear Technology, LTC3411 Datasheet - Page 5

• Manufacturer Part Number: LTC3411
• Description: 1.25A/ 4MHz/ Synchronous Step-Down DC/DC Converter
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
–0.1
–0.2
–0.3
–0.4
–0.5
–10
0.4
0.3
0.2
0.1
–2
–4
–6
–8
10
8
6
4
2
0
0
–50
1
Frequency Variation
vs Temperature
Load Regulation
PULSE SKIP
CONTINUOUS
FORCED
–25
10
LOAD CURRENT (mA)
0
TEMPERATURE ( C)
Burst Mode
OPERATION
25
100
50
75
1000
W
V
V
IN
OUT
= 3.3V
100
= 2.5V
3411 G07
3411 G10
U
10000
125
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
100
90
95
85
0
0
2
Line Regulation
Efficiency vs Frequency
V
T
OUT
A
= 25 C
= 1.8V
1
3
I
FREQUENCY (MHz)
OUT
= 1.25A
V
IN
2
4
(V)
I
OUT
V
V
I
T
OUT
A
= 400mA
IN
OUT
3
= 25 C
5
= 3.3V
= 500mA
= 2.5V
3411 G11
3411 G08
4
6
–10
120
115
110
105
100
–2
–4
–6
–8
10
95
90
8
6
4
2
0
2.5
2
Frequency vs V
R
V
I
T
T
OUT
DS(ON)
A
A
OUT
= 25 C
= 25 C
= 1.25A
3
= 1.8V
MAIN SWITCH
vs V
3
3.5
IN
SYNCHRONOUS SWITCH
4
V
V
IN
LTC3411
IN
IN
4
(V)
(V)
4.5
5
5
sn3411 3411fs
5.5
3411 G09
3411 G12
5
6
6