Datasheet

LTC3883/LTC3883-1
108
3883fa
For more information www.linear.com/LTC3883
High Efficiency 500kHz 2-Phase 1.8V Step-Down Converter with Sense Resistors
TYPICAL APPLICATIONS
GND
0.1µF
1µF
10µF
V
IN
6V TO 18V
1µF
5mΩ
5k
100Ω
2200pF
1000pF
30Ω
20k
V
DD25
4.99k
22µF
50V
+
D1
M1
M2
C
OUT1
530µF
10nF
C
OUT1
, C
OUT2
: 330μH SANYO 4TPF330ML,
2× 100µF AVX 12106D107KAT2A
D1, D2: CENTRAL CMDSH-3TR
L: VITEC 59PR9875 0.4µH
M1, M3: INFINEON BSC050NE2LS
M2, M4: INFINEON BSC010NE2LSI
1.0µF
1.0µF
0.4µH
0.002Ω
TG
BG
PGND
FREQ_CFG
I
IN_SNS
BOOST
V
IN_SNS
SYNC
SW
INTV
CC
LTC3883
10k
10k
PGOOD
10k
SDA
10k
PMBus
INTERFACE
V
DD33
SCL
V
OUT_CFG
V
TRIM_CFG
ASEL
WP
I
SENSE
+
I
SENSE
–
V
SENSE
+
V
SENSE
–
V
DD25
V
DD33
TSNS
I
TH
10k
ALERT
10k
RUN
10k
SHARE_CLK
MMBT3906
17.8k
24.9k
11.3k
30Ω
V
IN
GND
0.1µF
1µF
10µF
1µF
5mΩ
100Ω
1000pF
30Ω
22µF
50V
+
D2
M3
M4
C
OUT2
530µF
3883 TA07
V
OUT
1.8V
40A
10nF
1.0µF
1.0µF
100pF
0.4µH
0.002Ω
TG
BG
PGND
FREQ_CFG
I
IN_SNS
BOOST
V
IN_SNS
SYNC
SW
INTV
CC
LTC3883
SDA
SCL
V
OUT_CFG
V
TRIM_CFG
ASEL
WP
I
SENSE
+
I
SENSE
–
V
SENSE
+
V
SENSE
–
V
DD25
V
DD33
TSNS
I
TH
ALERT
RUN
SHARE_CLK
MMBT3906
30Ω
100Ω
100Ω
PGOOD
GPIO
PGOOD
GPIO
10nF10nF
10µF
V
IN
10µF
10nF
10nF
3Ω
20k
V
DD25
15k
3Ω