Datasheet

LTC3610
4
3610ff
LOAD CURRENT (A)
0.001
EFFICIENCY (%)
70
80
10
3610 G04
60
50
0.01 0.1 1
100
90
DISCONTINUOUS
MODE
CONTINUOUS
MODE
V
IN
= 12V
V
OUT
= 2.5V
EXTV
CC
= 5V
FIGURE 6 CIRCUIT
INPUT VOLTAGE (V)
5
80
EFFICIENCY (%)
85
90
95
100
10 15 20
3610 G05
25
I
LOAD
= 1A
I
LOAD
= 10A
FCB = 5V
FIGURE 6 CIRCUIT
INPUT VOLTAGE (V)
5
FREQUENCY (kHz)
480
520
25
3610 G06
440
400
10 15 20
640
600
560
I
LOAD
= 10A
FCB = 0V
FIGURE 6 CIRCUIT
I
LOAD
= 0A
LOAD CURRENT (A)
0
ΔV
OUT
(%)
8
3610 G08
–0.80
–0.60
–0.40
–0.20
0.60
0.40
0.20
0
2 4 6
1210
0.80
FIGURE 6 CIRCUIT
LOAD CURRENT (A)
0
I
TH
VOLTAGE (V)
1.0
1.5
3610 G09
0.5
0
3 6 9 12
2.5
2.0
CONTINUOUS
MODE
DISCONTINUOUS
MODE
FIGURE 6 CIRCUIT
LOAD CURRENT (A)
0
0
FREQUENCY (kHz)
50
100
150
200
250
300
350
400
450
500
550
600
650
2 4 6 8
3610 G07
1210
CONTINUOUS MODE
DISCONTINUOUS MODE
typical perForMance characteristics
Transient Response
Transient Response
(Discontinuous Mode) Start-Up
Efficiency
vs Load Current Efficiency vs Input Voltage Frequency vs Input Voltage
Frequency
vs Load Current Load Regulation I
TH
Voltage vs Load Current
LOAD STEP 0A TO 8A
V
IN
= 12V
V
OUT
= 2.5V
FCB = 0V
FIGURE 6 CIRCUIT
3610 G01
40µs/DIV
V
OUT
100mV/DIV
I
L
5A/DIV
I
LOAD
5A/DIV
I
LOAD
= 1A TO 7A
V
IN
= 12V
V
OUT
= 2.5V
FCB = INTV
CC
FIGURE 6 CIRCUIT
3610 G02
40µs/DIV
V
OUT
100mV/DIV
I
L
5A/DIV
I
LOAD
5A/DIV
V
IN
= 12V
V
OUT
= 2.5V
R
LOAD
= 0.5Ω
FIGURE 6 CIRCUIT
3610 G03
40ms/DIV
RUN/SS
2V/DIV
V
OUT
1V/DIV
I
L
5A/DIV