Datasheet

LTC3411A
4
3411afc
For more information www.linear.com/LTC3411A
Efficiency vs Output Current Efficiency vs Frequency Load Regulation
Line Regulation
Reference Voltage vs
Temperature
Frequency Variation vs
Temperature
OUTPUT CURRENT (mA)
0.1 1 10
0
EFFICIENCY (%)
40
30
100
1000100 10000
3411A G04
20
10
60
50
80
70
90
V
OUT
= 1.8V
Burst Mode
OPERATION
FORCED CONTINUOUS
PULSE
SKIP
FREQUENCY (MHz)
95
94
93
92
91
90
89
88
3411A G05
0 3 5
1 2
4
EFFICIENCY (%)
V
OUT
= 1.8V
I
LOAD
= 400mA
4.7µH
1µH
2.2µH
INPUT VOLTAGE(V)
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
3411A G07
2.5 4.0 5.0 5.5
3.0 3.5
4.5
V
OUT
ERROR (%)
V
OUT
= 1.8V
I
LOAD
= 400mA
TEMPERATURE(°C)
6
4
2
0
–2
–4
–6
3411A G09
–50 25 75 100 125
–25 0
50
FREQUENCY VARIATION (%)
OUTPUT CURRENT(mA)
1.00
0.75
0.50
0.25
0.00
–0.25
–0.50
3411A G06
0 600 1000 1200 1400
200 400
800
V
OUT
ERROR (%)
V
OUT
= 1.8V
FORCED CONTINUOUS
Burst Mode OPERATION
PULSE SKIP
TEMPERATURE(°C)
815
810
805
800
795
790
785
3411A G08
–50 25 75 100 125
–25 0
50
REFERENCE VOLTAGE (mV)
V
IN
= 3.6V
Typical perForMance characTerisTics
Efficiency vs Input Voltage Efficiency vs Output Current Efficiency vs Output Current
T
A
= 25°C, V
IN
= 3.6V, f
O
= 1MHz, unless
otherwise noted.
INPUT VOLTAGE(V)
2.5
100
90
80
70
60
50
40
30
4.0 5.0
3411A G01
3.0 3.5
4.5 5.5
EFFICIENCY (%)
I
OUT
= 100mA
I
OUT
= 1.25A
V
OUT
= 1.8V
I
OUT
= 1mA
I
OUT
= 0.1mA
I
OUT
= 10mA
OUTPUT CURRENT (mA)
0.1 1 10
0
EFFICIENCY (%)
40
30
100
1000100 10000
3411A G02
20
10
60
50
80
70
90
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
OUT
= 1.8V
OUTPUT CURRENT (mA)
0.1 1 10
0
EFFICIENCY (%)
40
30
100
1000100 10000
3411A G03
20
10
60
50
80
70
90
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
OUT
= 1.5V