Datasheet

LTC3618
20
3618fc
For more information www.linear.com/LTC3618
External Compensation, Forced Continuous Operation,
In-Phase Switching, Common PGOOD Output
Typical applicaTions
Load Step Transient V
DDQ
Load Step Transient V
TT
I
L
1A/DIV
V
OUT
200mV/DIV
3618 TA02b
V
IN
= 3.3V
V
OUT
= 1.8V
I
LOAD
= 200mA TO 2A
I
L
1A/DIV
V
OUT
100mV/DIV
3618 TA02c
V
IN
= 3.3V
V
OUT2
= 0.9V
I
LOAD
= –1A TO 1A
(2×) SW1
FB1
LTC3618
3618 TA02a
SGND
RUN1
TRACK/SS1
R
T
178k
ITH1
PHASE
RUN2
PGOOD2
ITH2
PGOOD1
RT
VTTR
MODE/SYNC
V
IN
3.3V
PGOOD
SV
IN
(2×) PV
IN1
(2×) PV
IN2
VDDQIN
0.47µH
47µF
V
DDQ
1.8V/±3A
10pF
R1
845k
R2
422k
R
C2
6.81k
C
C2
680pF
R
C1
15.8k
C
C1
470pF
(2×) SW2
FB2
0.47µH
47µF
V
TT
0.9V/±3A
10pF
10pF
100k
PGND
1µF47µF47µF
0.01µF