LTC3607
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted.
Efficiency vs Load Current
Burst Mode Operation
Efficiency vs Load Current
Burst Mode Operation
Efficiency vs Load Current
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
V
= 2.5V
V
= 3.3V
V
V
= 8.4V
OUT
OUT
OUT
IN
= 5V
V
V
V
= 5V
= 8.4V
= 12V
V
V
V
= 5V
= 8.4V
= 12V
IN
IN
IN
IN
IN
IN
Burst Mode OPERATION
PULSE SKIP
0.1
1
10
100
1000
0.1
1
10
100
1000
0.1
1
10
100
1000
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
3607 G01
3607 G02
3607 G03
Efficiency vs Input Voltage
Burst Mode Operation
Burst Mode Operation
Pulse-Skipping Mode
100
95
90
85
80
75
70
65
60
55
50
V
= 3.3V
OUT
SW
SW
5V/DIV
5V/DIV
V
V
OUT
50mV/DIV
OUT
50mV/DIV
I
I
L
L
200mA/DIV
200mA/DIV
I
I
I
I
= 1mA
LOAD
LOAD
LOAD
LOAD
= 10mA
= 100mA
= 600mA
3607 G05
3607 G06
2µs/DIV
2µs/DIV
V
V
I
= 8.4V
V
V
I
= 8.4V
IN
OUT
IN
OUT
= 2.5V
= 2.5V
= 100mA
= 20mA
4
6
8
10
12
14
16
LOAD
LOAD
INPUT VOLTAGE (V)
3607 G04
Load Step in Burst Mode
Operation
VOUT Short to GND (Burst Mode
Operation)
Start-Up (Burst Mode Operation)
PGOOD
2V/DIV
RUN
V
OUT
2V/DIV
V
OUT
100mV/DIV
PGOOD
2V/DIV
1V/DIV
V
OUT
2V/DIV
I
L
I
I
L
200mA/DIV
L
0.5A/DIV
1A/DIV
3607 G07
3607 G08
3607 G09
20µs/DIV
200µs/DIV
100µs/DIV
V
V
I
= 8.4V
V
V
I
= 8.4V
V
V
I
= 8.4V
IN
OUT
IN
OUT
IN
OUT
= 2.5V
= 2.5V
= 2.5V
= 0A
= 30mA TO 600mA
= 20mA
LOAD
LOAD
LOAD
3607fb
4
For more information www.linear.com/LTC3607
Linear Systems [ Linear Systems ]
