Datasheet

LTC3883/LTC3883-1
109
3883fa
For more information www.linear.com/LTC3883
TYPICAL APPLICATIONS
High Efficiency 3-Phase 425kHz 1.8V Step-Down Converter with Input Current Sense
D1-D3: CENTRAL CMDSH-3TR
L0-L2: VISHAY IHLP-4040DZ-11 0.56µH
M1, M3, M4: INFINEON BSC050NE2LS
M2, M5, M6: INFINEON BSC010NE2LSI
V
IN
GND
0.1µF
1µF
22µF
10µF
0.1µF
1µF
1µF
D3D2
M3
M5
1µF
L1
0.56µH
1.4k
M4
M6
3883 TA08
10nF
10µF
0.22µF 0.22µF
100pF
1.4k
MMBT3906
L2
0.56µH
TG1
BG1
PGND
V
DD25
V
OUT0_CFG
V
OUT1_CFG
V
TRIM0_CFG
V
TRIM1_CFG
ASEL
BOOST1
V
DD33
SYNC
SW1
TG0
BG0
BOOST0
SW0
INTV
CC
LTC3880
SDA
1.4k
SCL
ALERT
GPIO1
SHARE_CLK
RUN1
TSNS0 TSNS1
I
SENSE0
+
I
SENSE1
+
V
SENSE0
+
V
SENSE0
–
I
SENSE0
–
I
SENSE1
–
WP
FREQ_CFG
I
TH0
V
SENSE1
RUN0
I
TH1
GPIO0
V
IN
GND
0.1µF
1µF
10µF
V
IN
6V TO 14V
1µF
5mΩ
5k
100Ω
2200pF
4.99k
22µF
50V
+
D1
M1
M2
V
DD25
1.4k
V
OUT
1.8V
50A
C
OUT1
530µF
10nF
1.0µF
1.0µF
0.22µF
L0
0.56µH
TG
BG
PGND
FREQ_CFG
I
IN_SNS
BOOST
V
IN_SNS
SYNC
WP
SW
INTV
CC
LTC3883
10k
GPIO
10k
PGOOD
24.9k
11.3k
24.9k
11.3k
10k
15.8k
20k
17.8k
20k
17.8k
10k
SDA
10k
PMBus
INTERFACE
SCL
V
OUT_CFG
V
TRIM_CFG
ASEL
I
SENSE
+
I
SENSE
–
V
SENSE
+
V
SENSE
–
V
DD25
V
DD33
TSNS
I
TH
10k
ALERT
10k
RUN
10k
SHARE_CLK
MMBT3906
100Ω
10nF
10nF
10µF
1µF
1.4k
1µF
1.4k
MMBT3906
+
+
C
OUT3
530µF
C
OUT2
530µF
C
OUT1
, C
OUT2
, C
OUT3
: 330μH SANYO 4TPF330ML,
2
×
100µF AVX 12106D107KAT2A
3Ω