Datasheet

LTC3606B
5
3606bfb
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
IN
= 5V, unless otherwise noted.
Effi ciency vs Load Current Load Regulation Line Regulation
Start-Up from Shutdown Start-Up from Shutdown
OUTPUT CURRENT (A)
EFFICIENCY (%)
3606B G13
100
90
80
70
60
50
40
30
20
10
0
0.0001 0.1 10.010.001
V
OUT
= 1.2V
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 5V
LOAD CURRENT (mA)
V
OUT
ERROR (%)
3606B G15
3.0
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
0 300 400 500 600 700 800200100
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
IN
(V)
V
OUT
ERROR (%)
3606B G16
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
2.5 3.0 3.5 4.0 4.5 5.0 5.5
V
OUT
= 1.8V
I
LOAD
= 100mA
V
IN
= 5V, V
OUT
= 3.3V
R
LOAD
= 7Ω
C
LOAD
= 4.7µF
3606B G17
RUN
2V/DIV
I
L
250mA/DIV
V
OUT
1V/DIV
200µs/DIV
V
IN
= 5V, V
OUT
= 3.4V
R
L
= NO LOAD, C
L
= 4.4mF
C
LIM
= 2200pF, I
LIM
= 500mA
3606B G18
RUN
2V/DIV
I
IN
500mA/DIV
V
OUT
2V/DIV
R
LIM
1V/DIV
2ms/DIV
Average Input Current Limit
vs Temperature
Load Step Load Step
TEMPERATURE (°C)
–50
–8
I
INLIM
ERROR (%)
–4
–2
–6
0
6
4
2
8
75 10050250–25
3606B G19
125
V
IN
= 5V
I
LIM
= 475mA
V
IN
= 5V, V
OUT
= 3.3V
I
LOAD
= 0A TO 800mA
C
OUT
= 100µF, C
F
= 20pF
20µs/DIV
3606B G20
I
LOAD
1A/DIV
I
L
1A/DIV
V
OUT
200mV/DIV
AC-COUPLED
V
IN
= 5V, V
OUT
= 1.8V
I
LOAD
= 80mA TO 800mA
C
OUT
= 100µF, C
F
= 20pF
20µs/DIV
3606B G21
I
LOAD
1A/DIV
I
L
1A/DIV
V
OUT
200mV/DIV
AC-COUPLED
V
RLIM
vs Input Current
I
IN
(mA)
V
RLIM
(V)
3606B G18b
1.2
1.0
0.8
0.6
0.4
0.2
0
0 100 200 300 400 500 600
I
LIM
= 475mA
R
LIM
= 116k