LTC3414 LINER [Linear Technology], LTC3414 Datasheet - Page 4

• Manufacturer Part Number: LTC3414
• Description: 4A, 4MHz, Monolithic Synchronous Step-Down Regulator
• Manufacturer: LINER [Linear Technology]

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