Datasheet

LTC3880/LTC3880-1
109
3880fc
For more information www.linear.com/LTC3880
TYPICAL APPLICATIONS
High Efficiency Dual 500kHz 5V/3.3V Step-Down Converter with Sense Resistors
V
IN
V
DD33
V
DD25
SGND
TG0
0.1µF
4.99k
0.1µF
1µF
1µF
L0, L1: VISHAY IHLP-2525CZ01 2.2µH
M1, M2: VISHAY Si4816BDY
1µF
4700pF
1000pF
1000pF
4700pF
22µF
V
IN
6V TO 24V
10µF
+
530µF
D2
10k
15.8k
V
DD25
M1 M2
V
OUT1
5V
5A
4.99k 4.99k
L1
2.2µH
0.005Ω
L0
2.2µH
0.005Ω
D1
TG1
BG0
SYNC
10k
10k
23.2k
20k
11k
16.2k
20.5k
20k
12.7k
GPIO0
10k
GPIO1
10k
SDA
10k
SCL
10k
ALERT
10k
RUN0
FREQ_CFG
V
OUT0_CFG
V
OUT1_CFG
V
TRIM0_CFG
V
TRIM1_CFG
ASEL
10k
RUN1
WP
10k
100Ω
100Ω
100Ω
100Ω
SHARE_CLK
V
DD33
BG1
PGND
BOOST0 BOOST1
SW0 SW1
INTV
CC
LTC3880
TSNS0 TSNS1
I
THO
I
TH1
I
SENSEO
+
I
SENSE1
+
V
SENSEO
+
V
SENSE1
V
SENSEO
–
I
SENSEO
–
I
SENSE1
–
V
OUT0
3.3V
5A
V
OUT1
1.8V
15A
+
530µF
3880 TA03
220pF 220pF10nF
10nF