Datasheet

LTC3619B
17
3619bfb
applicaTions inForMaTion
Figure 4b. Efficiency vs Output Current
Figure 4c. Transient Response
OUTPUT CURRENT (A)
EFFICIENCY (%)
POWER LOSS (W) POWER LOSS (W)
100
90
80
70
60
50
40
30
20
10
0
10
1
0.1
0.01
0.001
10
1
0.1
0.01
0.001
0.0001 0.1 10.010.001
V
OUT
= 1.8V
OUTPUT CURRENT (A)
EFFICIENCY (%)
3619B F04b
100
90
80
70
60
50
40
30
20
10
0
0.0001 0.1 10.010.001
V
OUT
= 3.4V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
20µs/DIV
V
IN
= 5V, V
OUT
= 1.8V
I
LOAD
= 40mA TO 400mA
C
L
= 10µF
V
OUT
100mV/DIV
AC-COUPLED
I
LOAD
500mA/DIV
I
L
500mA/DIV
1ms/DIV
V
IN
= 5V, 500mA COMPLIANT
R
LIM
= 116kΩ, C
LIM
= 2200pF
I
LOAD
= 0A TO 2A, C
OUT
= 4.4mF, V
OUT
= 3.4V
I
LIM
= 475mA, CHANNEL 1 NOT LOADED
3619B F04c
V
IN
1V/DIV
AC-COUPLED
V
OUT
200mV/DIV
I
IN
500mA/DIV
I
OUT
500mA/DIV