Datasheet

LTC3414
4
3414fb
LOAD CURRENT (A)
EFFICIENCY (%)
100
95
90
85
80
75
70
65
60
55
50
0.001 0.1 1 10
3414 G10
0.01
LOAD CURRENT (A)
EFFICIENCY (%)
100
90
80
70
60
50
40
30
20
10
0
0.001 0.1 1 100.01
3414 G11
INPUT VOLTAGE (V)
2.5
EFFICIENCY (%)
3.0
3.5
4.0 4.5
3414 G13
5.0
98
96
94
92
90
88
86
84
82
80
78
5.5
LOAD CURRENT (A)
ΔV
OUT
/V
OUT
(%)
3414 G15
0
–0.05
–0.10
–0.15
–0.20
–0.25
–0.30
0
1.0
2.0
2.5
0.5 1.5
3.0
3.5
4.0
FREQUENCY (kHz)
EFFICIENCY (%)
3414 G14
100
95
90
85
80
75
70
300
1300
2300
2800
800 1800
3300
3800
3414 G16 3414 G17
V
IN
= 3.3V
V
IN
= 5V
V
IN
= 3.3V
V
IN
= 5V
I
OUT
= 1A
I
OUT
= 4A
L = 0.47μH
L = 0.2μH
L = 1μH
V
IN
= 3.3V, V
OUT
= 2.5V
LOAD = 250mA
OUTPUT
VOLTAGE
20mV/DIV
INDUCTOR
CURRENT
500mA/DIV
V
IN
= 3.3V, V
OUT
= 2.5V
LOAD STEP = 0A TO 4A
OUTPUT
VOLTAGE
100mV/DIV
INDUCTOR
CURRENT
2A/DIV
LOAD CURRENT (A)
EFFICIENCY (%)
100
95
90
85
80
75
70
65
60
55
50
0.001 0.1 1 10
3414 G12
0.01
Burst Mode OPERATION
FORCED
CONTINUOUS
10μs/DIV 20μs/DIV
V
IN
= 3.3V
V
OUT
= 2.5V
V
OUT
= 2.5V
T
A
= 25°C
V
OUT
= 2.5V
T
A
= 25°C
V
IN
= 3.3V
V
OUT
= 2.5V
T
A
= 25°C
V
IN
= 3.3V
V
OUT
= 2.5V
T
A
= 25°C
T
A
= 25°C
T
A
= 25°C
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Efficiency vs Load Current, Burst
Mode Operation
Efficiency vs Input Voltage Efficiency vs Frequency
Efficiency vs Load Current,
Forced Continuous
Load Regulation
Burst Mode Operation
Load Step Transient Forced
Continuous
Efficiency vs Load Current