Datasheet

LTC3417
4
3417fd
TYPICAL PERFORMANCE CHARACTERISTICS
OUT1 Burst Mode Operation
OUT1 Pulse Skipping
Mode Operation
OUT1 Forced Continuous
Mode Operation
OUT2 Burst Mode Operation
OUT2 Pulse Skipping
Mode Operation
OUT2 Forced Continuous
Mode Operation
OUT1 Effi ciency vs Load Current OUT2 Effi ciency vs Load Current
OUT1 Effi ciency vs V
IN
(Burst Mode Operation)
3417 G01
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 100mA
REFER TO FIGURE 4
I
L
250mA/DIV
V
OUT
20mV/DIV
2µs/DIV
3417 G02
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 100mA
REFER TO FIGURE 4
I
L
250mA/DIV
V
OUT
20mV/DIV
2µs/DIV
3417 G03
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
= 100mA
REFER TO FIGURE 4
I
L
250mA/DIV
V
OUT
20mV/DIV
2µs/DIV
3417 G04
V
IN
= 3.6V
V
OUT
= 2.5V
I
LOAD
= 60mA
REFER TO FIGURE 4
I
L
250mA/DIV
V
OUT
20mV/DIV
2µs/DIV
3417 G05
V
IN
= 3.6V
V
OUT
= 2.5V
I
LOAD
= 60mA
REFER TO FIGURE 4
I
L
250mA/DIV
V
OUT
20mV/DIV
2µs/DIV
3417 G06
V
IN
= 3.6V
V
OUT
= 2.5V
I
LOAD
= 60mA
REFER TO FIGURE 4
I
L
250mA/DIV
V
OUT
20mV/DIV
2µs/DIV
LOAD CURRENT (A)
70
EFFICIENCY (%)
80
85
95
100
0.001 0.1 1 10
3417 G07
60
0.01
90
75
65
V
IN
= 2.5V
V
OUT
= 1.8V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
REFER TO FIGURE 4
LOAD CURRENT (A)
0.001
80
EFFICIENCY (%)
90
100
0.01 0.1 1
3417 G08
70
75
85
95
65
60
V
IN
= 3.6V
V
OUT
= 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
REFER TO FIGURE 4
V
IN
(V)
2 2.5 3.5 4.5 5.5
EFFICIENCY (%)
90
95
100
3417 G09
85
80
3
45
75
70
V
OUT
= 1.8V
I
LOAD
= 1.4A
I
LOAD
= 460mA
REFER TO FIGURE 4