Datasheet
LTC3418
4
3418fb
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current
vs Input Voltage
INPUT VOLTAGE (V)
2.5
0
QUIESCENT CURRENT (μA)
100
200
300
3
3.5
4 4.5
3418 G05
5
400
500
50
150
250
350
450
5.5
INPUT VOLTAGE (V)
2.25
0
LEAKAGE CURRENT (nA)
0.5
1.5
2.0
2.5
4.25
5.0
4.5
3418 G04
1.0
3.25
2.75
4.75
3.75 5.25
3.0
PFET
NFET
3.5
4.0
Switch Leakage vs Input Voltage
Frequency vs Input Voltage
INPUT VOLTAGE (V)
2.25
900
FREQUENCY (kHz)
920
960
980
1000
4.25
1100
1080
3418 G08
940
3.25
2.75
4.75
3.75 5.25
1020
1040
1060
TEMPERATURE (°C)
–40
900
FREQUENCY (kHz)
920
960
980
1000
1100
1040
0
40
60
3418 G07
940
1060
1080
1020
–20 20
80
100
120
V
IN
= 3.3V
Frequency vs Temperature
Frequency vs R
OSC
R
OSC
(kΩ)
10
0
FREQUENCY (kHz)
500
1500
2000
2500
170
4500
3418 G06
1000
90
50
210
130 250
3000
3500
4000
V
IN
= 3.3V
Effi ciency and Power Loss
vs Load Current
Effi ciency vs Load Current
LOAD CURRENT (A)
0.01
40
EFFICIENCY (%)
50
60
70
80
0.1 1 10
3418 G10
30
20
10
0
90
100
Burst Mode OPERATION
FORCED CONTINUOUS
V
IN
= 3.3V
V
OUT
= 2.5V
Effi ciency vs Load Current
LOAD CURRENT (A)
0.01
40
EFFICIENCY (%)
50
60
70
80
0.1 1 10
3418 G11
30
20
10
0
90
100
3.3V
5V
FORCED CONTINUOUS
V
OUT
= 2.5V
Effi ciency vs Load Current
LOAD CURRENT (A)
0.01
40
EFFICIENCY (%)
50
60
70
80
0.1 1 10
3418 G12
30
20
10
0
90
100
3.3V
5V
Burst Mode OPERATION
V
OUT
= 2.5V
LOAD CURRENT (A)
0.01
60
EFFICIENCY (%)
POWER LOSS (mW)
80
100
0.1 1 10
3418 G09
40
50
70
90
30
20
1000
100000
100
10000
10
1
EFFICIENCY
POWER LOSS
V
IN
= 3.3V
V
OUT
= 2.5V
T
A
= 25°C unless otherwise noted.