LTC3371_15 Datasheet, PDF (21/26 Pages) Linear Technology – 4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset

LTC3371
Typical Applications
Buck Regulators with Sequenced Start-Up Diven from a High Voltage Upstream Buck Converter
V_IN
5.5V TO 36V
MICROPROCESSOR
CONTROL
1M
C_IN
22µF
INTV_CC
100k
LTC2955TS8-1
V_IN
EN
KILL
INT
PB
TMR GND ON
470pF
34.8k
0.1µF
V_IN
INTV_CC
PGOOD
PGND
PLLIN/MODE
I_LIM
TG
LTC3891
RUN
BOOST
FREQ
SW
BG
ITH
SENSE⁺
TRACK/SS
SGND
SGND
SENSE^–
EXTV_CC
V_FB
2.2µF
D1
0.1µF
MTOP
L1
8µH
R_SENSE
7mΩ
MBOT
1nF
C_OUT: SANYO 10TPE330M
D1: DFLS1100
L1 COILCRAFT SER1360-802KL
MTOP, MBOT: Si7850DP
5V
C_OUT
6A
330µF
100k
19.1k
47µF
V_INH
V_INA
V_INB
V_INC
V_INF
V_ING
22µF
1.2V
4A
2.2µH
100µF _232k
SWH
SWA
SWB
SWC
SWF
SWG
2.2µH
806k
1.8V
2A
47µF
FB1
FB4
464k
649k
V_IND
V_INE
10µF
10µF
2.5V
1A
2.2µH
SWD LTC3371 SWE
2.2µH
22µF _665k
511k
22µF
FB2
FB3
309k
162k
MICROPROCESSOR
CONTROL
EN1
V_CC
EN2
EN3
EN4
RST1
PLL/MODE
RST2
V_CC
C1
C2
RST3
RST4
C3
WDO
WDI
TEMP
RT
CT
402k
EXPOSED PAD
1M
10µF
MICROPROCESSOR
CONTROL
3.3V
1A
3371 TA03
For more information www.linear.com/LTC3371
3371fa
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