Datasheet

LTC3880/LTC3880-1
110
3880fc
For more information www.linear.com/LTC3880
TYPICAL APPLICATIONS
High Efficiency 350kHz 2-Phase 1.5V Dual Step-Down Converter with External V
CC
and Sense Resistors
V
IN
V
DD33
V
DD25
SGND
TG0
0.1µF
4.99k
0.1µF
1µF
1µF1µF
4700pF
1000pF
1000pF
22µF
V
IN
6V TO 24V
10µF
+
530µF
D2
M2
M4
V
DD25
M1
5V
CC
M3
V
OUT1
1.5V
40A
2.55k
L1
0.42µH
0.0015Ω
L0
0.42µH
0.0015Ω
D1
TG1
BG0
SYNC
10k
24.9k
7.32k
20k
17.8k
GPIO0
10k
GPIO1
10k
SDA
SCL
10k
ALERT
10k
RUN0
FREQ_CFG
V
OUT0_CFG
V
OUT1_CFG
V
TRIM0_CFG
V
TRIM1_CFG
ASEL
RUN1
WP
10k
100Ω
100Ω
100Ω
100Ω
SHARE_CLK
V
DD33
BG1
PGND
BOOST0 BOOST1
SW0 SW1
EXTV
CC
LTC3880-1
TSNS0 TSNS1
I
THO
I
TH1
I
SENSEO
+
I
SENSE1
+
V
SENSEO
+
V
SENSE1
V
SENSEO
–
I
SENSEO
–
I
SENSE1
–
+
530µF
3880 TA04
220pF10nF
10nF
L0, L1: VITEC 59PR9875 0.42µH
M1, M2: INFINEON BSC050N03LS
M3, M4: INFINEON BSC010NE2LSI