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LTC3605A
18
3605afg
For more information www.linear.com/LTC3605A
Typical applicaTions
12V, 10A 2-Phase Single Output Regulator
CLKIN
RT
24
1
2
3
4
5
6
23
C1
2.2µF
C
IN1
22µF
×2
0.1µF
100pF
V
IN
4V TO 20V
V
OUT
3.3V
10A
0.1µF
0.1µF
C
OUT1
47µF
×2
0.1µF
10pF470pF
22 21
D1
20 19
10Ω
18
17
16
L1 1.5µH
15
14
13
7 8
100k
162k
5.4k
10pF470pF
5.4k
10k
2.21k
9 10 11 12
SGNDPGND
PHMODE
MODE
FB
TRACK/SS
I
TH
PV
IN
PV
IN
SW
SW
SW
SW
CLKOUT SGND
LTC3605A
INTV
CC
BOOST SV
IN
RUN
SV
IN
PGOOD V
ON
PGND SW SW
CLKIN
RT
24
1
2
3
4
5
6
23
C2
2.2µF
C
IN2
22µF
×2
0.1µF
C
OUT2
47µF
22 21
D2
20 19
10Ω
18
17
16
L2 1.5µH
15
14
13
7 8
162k
3605A TA03
9 10 11 12
SGNDPGND
PHMODE
MODE
FB
TRACK/SS
ITH
PV
IN
PV
IN
SW
SW
SW
SW
CLKOUT SGND
LTC3605A
INTV
CC
BOOST SV
IN
RUN
SV
IN
PGOOD V
ON
PGND SW SW
C1, C2: AVX 0805ZD225MAT2A
C
IN1
, C
IN2
: TDK C4532X5RIC226M
C
OUT1
, C
OUT2
: TDK C3216X5ROJ476M
D1, D2: CENTRAL SEMI CMDSH-3
L1, L2: VISHAY IHLP-2525CZER1R5-M01
LOAD CURRENT (A)
0.1
0
EFFICIENCY (%)
20
40
60
80
1 10
3605A TA03b
100
10
30
50
70
90
DCM
CCM
12V, 10A, 2-Phase Efficiency 12V, 10A, 2-Phase Load Step
20µs/DIV
I
L1
2A/DIV
I
L2
2A/DIV
V
OUT
100mV/DIV
AC-COUPLED
3605A TA03c
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