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LTC3546
6
3546fc
For more information www.linear.com/3546
OUT2 Burst Mode Operation
OUT2 Pulse-Skipping Mode
Operation
OUT2 Forced Continuous Mode
Operation
OUT1 Efficiency vs Load Current
OUT1 Efficiency vs Load Current
OUT2 Efficiency vs Load Current
OUT2 Efficiency vs Load Current
OUT1 Efficiency vs V
IN
OUT1 Efficiency vs V
IN
1µs/DIV
V
OUT
20mV/DIV
I
LOAD
SW1D CONNECTED TO SW1
V
IN
= 3.6V
V
OUT
= 2.5V
I
= 300mA
1µs/DIV
V
OUT
20mV/DIV
I
LOAD
SW1D CONNECTED TO SW1
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 200mA
1µs/DIV
V
OUT
20mV/DIV
I
LOAD
SW1D CONNECTED TO SW1
V
IN
= 3.6V
V
OUT
= 1.8V
I
= 100mA
I
LOAD
(A)
0.001
EFFICIENCY (%)
95
90
85
80
75
70
65
60
0.1
3546 G14
10
0.01 1
SW1D CONNECTED TO SW1
V
IN
= 3.6V
V
OUT
= 1.8V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
I
LOAD
(A)
0.001
EFFICIENCY (%)
95
90
85
80
75
70
60
65
0.1
3546 G15
1
0.01
SW1D CONNECTED TO SW2
V
IN
= 3.6V
V
OUT
= 1.8V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
I
LOAD
(A)
0.001
EFFICIENCY (%)
100
95
90
85
80
75
70
65
60
0.1
3546 G16
10
0.01 1
SW1D CONNECTED TO SW2
V
IN
= 3.6V
V
OUT
= 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
I
LOAD
(A)
0.001
EFFICIENCY (%)
100
95
90
85
80
75
70
65
60
0.1
3546 G17
10
0.01 1
SW1D CONNECTED TO SW1
V
IN
= 3.6V
V
OUT
= 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
V
IN
(V)
EFFICIENCY (%)
100
82
98
94
90
86
96
92
88
84
80
4.25 4.753.75
3546 G18
5.253.252.75
2.25
400mA
2A
SW1D CONNECTED TO SW1
V
OUT
= 1.8V
3546 G19
200mA
1A
100
82
98
94
90
86
96
92
88
84
80
4.25 4.753.75 5.253.252.75
2.25
SW1D CONNECTED TO SW2
V
OUT
= 1.8V
V
IN
(V)
EFFICIENCY (%)
Typical perForMance characTerisTics