LTC3614 LINER [Linear Technology], LTC3614 Datasheet - Page 5

• Manufacturer Part Number: LTC3614
• Description: 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
500mA/DIV
20mV/DIV
–0.2
–0.3
–0.1
100
0.3
0.2
0.1
90
80
70
60
50
40
30
V
0
OUT
2.20
Effi ciency vs Input Voltage
Burst Mode Operation
(V
Line Regulation
I
L
Forced Continuous Mode Operation
2.5
V
I
V
MODE
OUT
OUT
MODE
2.75
= 100mA
= 1.8V
= 1.5V
= 0V)
3
3.30
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
3.5
3.85
1μs/DIV
4
4.40
4.5
I
I
I
OUT
OUT
OUT
V
OUT
= 6mA
= 600mA
= 2A
4.95
5
= 1.8V
3614 G07
3614 G04
3614 G10
5.50
5.5
100mV/DIV
20mV/DIV
1A/DIV
2A/DIV
I
V
V
LOAD
OUT
OUT
95
94
93
92
91
90
89
88
87
86
85
84
83
82
I
L
0.5
Effi ciency vs Frequency
Burst Mode Operation
(V
Burst Mode Operation
V
I
V
Load Step Transient in
Pulse-Skipping Mode
V
I
V
COMPENSATION FIGURE 1
OUT
LOAD
OUT
MODE
OUT
MODE
MODE
= 150mA
1
= 1.8V
= 1.8V
= 100mA TO 4A
= 0V
= 3.3V
1.5
= 0V), I
FREQUENCY (MHz)
2
100μs/DIV
20μs/DIV
OUT
2.5
= 2A
3
V
V
3.5
IN
OUT
= 3.3V
= 1.8V
150nH
330nH
470nH
V
4
3614 G05
3614 G08
3614 G11
IN
= 3.3V, RT/SYNC = SV
4.5
100mV/DIV
20mV/DIV
1A/DIV
2A/DIV
I
V
V
–0.1
–0.3
LOAD
OUT
1.5
1.3
1.1
0.9
0.7
0.5
0.3
0.1
OUT
I
L
0
Load Regulation
(V
Load Step Transient in
Burst Mode Operation
Pulse-Skipping Mode Operation
V
I
V
V
I
V
COMPENSATION FIGURE 1
OUT
LOAD
OUT
MODE
OUT
MODE
OUT
= 150mA
= 1.8V
= 1.8V
= 100mA TO 4A
= 3.3V
= 0V
= 1.8V)
1000
OUTPUT CURRENT (mA)
FORCED CONTINUOUS MODE
PULSE-SKIPPING MODE
INTERNAL Burst Mode OPERATION
IN
unless otherwise noted.
100μs/DIV
20μs/DIV
2000
LTC3614
3000
3614 G06
3614 G09
3614 G12
5
3614f
4000