Datasheet

LTC3616
5
3616fc
For more information www.linear.com/LTC3616
Typical perForMance characTerisTics
Efficiency vs Input Voltage
Burst Mode Operation
(V
MODE
= 0V)
Efficiency vs Frequency
Burst Mode Operation
(V
MODE
= 0V), I
OUT
= 2A
Line Regulation Burst Mode Operation
Pulse-Skipping Mode Operation
INPUT VOLTAGE (V)
30
EFFICIENCY (%)
40
50
60
70
100
90
2.5 3 43.5 4.5
3616 G04
5 5.5
80
V
OUT
= 1.8V
I
OUT
= 6mA
I
OUT
= 600mA
I
OUT
= 2A
I
OUT
= 6A
INPUT VOLTAGE (V)
2.20
–0.3
V
OUT
ERROR (%)
–0.2
–0.1
0
0.1
0.3
2.75
3.30 3.85 4.40
3616 G07
4.95 5.50
0.2
V
OUT
20mV/DIV
I
L
1A/DIV
20µs/DIV
3616 G08
V
OUT
= 1.8V
I
OUT
= 150mA
V
MODE
= 0V
V
OUT
20mV/DIV
I
L
1A/DIV
20µs/DIV
3616 G09
V
OUT
= 1.8V
I
OUT
= 150mA
V
MODE
= 3.3V
V
IN
= 3.3V, RT/SYNC = SV
IN
unless otherwise noted.
Efficiency vs Load Current
Burst Mode Operation (V
MODE
= 0V)
Efficiency vs Load Current
Burst Mode Operation (V
MODE
= 0V)
Efficiency vs Load Current
Load Regulation
(V
IN
= 3.3V, V
OUT
= 1.8V)
OUTPUT CURRENT (mA)
0
–0.3
V
OUT
ERROR (%)
1.5
0.3
0.7
1.1
1.3
0.9
0.1
0.5
1000
2000 3000 4000
3616 G06
5000 6000
–0.1
FORCED CONTINUOUS MODE
PULSE-SKIPPING MODE
INTERNAL Burst Mode OPERATION
OUTPUT CURRENT (mA)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
1 100 1000 10000
3616 G01
0
10
V
IN
= 2.5V
V
IN
= 3.3V
V
IN
= 5V
V
OUT
= 1.8V
OUTPUT CURRENT (mA)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
1 100 1000 10000
3616 G02
0
10
V
IN
= 2.5V
V
IN
= 3.3V
V
IN
= 5V
V
OUT
= 1.2V
OUTPUT CURRENT (mA)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
1 100 1000 10000
3616 G03
0
10
Burst Mode OPERATION
PULSE-SKIPPING
FORCED CONTINUOUS
V
OUT
= 1.8V, V
IN
= 3.3V
FREQUENCY (MHz)
0.5
82
EFFICIENCY (%)
85
84
83
86
87
88
89
90
95
94
1 1.5 2.52 3 3.5
3616 G05
4 4.5
93
92
91
V
IN
= 3.3V
V
OUT
= 1.8V
150nH
330nH
470nH