LTC3614_15 Datasheet, PDF (27/30 Pages) Linear Technology – 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

LTC3614
Typical Applications
Master and Slave for Coincident Tracking Outputs Using a 1MHz External Clock
V_IN
2.25V TO 5.5V
22µF
×4
1MHz
CLOCK
R_C1
15k
C_C1
470pF
C_C2
10pF
4.7M
10nF
PGOOD
1M
1M
R_F1
24Ω
C_F1
1µF
R5
100k
SV_IN
PV_IN
RUN
TRACK/SS SRLIM/DDR
RT/SYNC
LTC3614
SW
PGOOD
SGND
ITH
PGND
MODE
V_FB
R2
357k
L1
0.68µH
R1
715k
C3
22pF
CHANNEL 1
MASTER
V_OUT1
1.8V
C_{O12 4A}
100µF
R3
464k
R4
464k
22µF
×4
R_C2
15k
C_C3
470pF
C_C4
10pF
PGOOD
R_F2
24Ω
C_F2
1µF
R7
100k
SV_IN
PV_IN
RUN
TRACK/SS SRLIM/DDR
RT/SYNC
LTC3614
SW
PGOOD
SGND
ITH
PGND
MODE
V_FB
L1, L2: VISHAY IHLP-2525CZ-01 680nH
R6
301k
L2
0.68µH
R5
301k
C7
22pF
CHANNEL 2
SLAVE
V_OUT2
1.2V
C_{O22 4A}
100µF
3614 TA03a
500mV/DIV
Coincident Start-Up
V_OUT1
V_OUT2
Coincident Tracking Up/Down
500mV/DIV
V_OUT1
V_OUT2
2ms/DIV
3614 TA03b
200ms/DIV
3614 TA03c
For more information www.linear.com/LTC3614
3614fc
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