Datasheet

LTC3374
21
3374fa
For more information www.linear.com/LTC3374
applicaTions inForMaTion
Figure 4. Buck Regulators with Sequenced Start-Up Driven from a High Voltage Upstream Buck Converter
LTC3374
EXPOSED PAD
2.2µH
V
IN1
SW1
FB1
V
IN8
SW8
FB8
3374 F04
2.2µH
324k
649k
324k
1M
649k
10µF
1.2V
1A
2.5V
1A
1.8V
1A
1.6V
1A
1.2V
1A
10µF
10µF
10µF 10µF
10µF
10µF
10µF
22µF 22µF
22µF
22µF
2.5V
1A
1.8V
1A
1.6V
1A
22µF
22µF
22µF
22µF
2.2µH
V
IN2
SW2
FB2
V
IN7
SW7
FB7
2.2µH
665k
309k
665k
309k
2.2µH
V
IN3
SW3
FB3
V
IN6
SW6
FB6
2.2µH
590k
475k
590k
475k
2.2µH
V
IN4
SW4
FB4
402k
RT
EN1
EN2
EN3
EN4
EN5
EN6
EN7
EN8
V
IN5
SW5
FB5
V
CC
PGOOD_ALL
TEMP
2.2µH
511k
511k
511k
511k
MICROPROCESSOR
CONTROL
10µF
SYNC
MODE
0.1µF
C
IN
22µF
V
IN
5.5V TO 36V
INTV
CC
34.8k
470pF
100k
100k
MTOP, MBOT: Si7850DP
L1 COILCRAFT SER1360-802KL
C
OUT
: SANYO 10TPE330M
D1: DFLS1100
19.1k
2.2µF
D1
0.1µF
FREQ
ITH
SGND
SGND
LTC3891
V
IN
PGOOD
PLLIN/MODE
I
LIM
INTV
CC
PGND
L1
8µH
R
SENSE
7mΩ
BOOST
SW
BG
SENSE
+
SENSE
–
EXTV
CC
V
FB
TG
MTOP
MBOT
1nF
C
OUT
330µF
5V
6A
TRACK/SS
RUN
V
IN
EN
KILL
INT
PB
TMR GND ON
LTC2955TS8-1
MICROPROCESSOR
CONTROL
MICROPROCESSOR
CONTROL