Datasheet

LT3980
20
3980fa
For more information www.linear.com/LT3980
Typical applicaTions
1.8V Step-Down Converter
12V Step-Down Converter
SW
FB
V
C
PG
RT
V
IN
BD
V
IN
15V TO 58V
TRANSIENT
TO 80V
V
OUT
12V
2A
10µF
0.47µF
22µF
50k
f = 600kHz
D
12k
60.4k
L
15µH
GND
1nF
ON OFF
LT3980
3980 TA06
RUN/SS BOOST
SYNC
715k
DA
SW
FB
V
C
PG
RT
V
IN
BD
V
IN
3.5V TO 32V
V
OUT
1.8V
2A
4.7µF
0.47µF
100µF
f = 400kHz
D
2.49k
97.6k
L
3.3µH
127k
GND
680pF
ON OFF
LT3980
3980 TA08
RUN/SS BOOST
SYNC
DA
100k
22pF
5V, 1.2MHz Step-Down Converter
SW
FB
V
C
PG
RT
V
IN
BD
V
IN
8.6V TO 40V
TRANSIENT
TO 80V
V
OUT
5V
2A
4.7µF
0.47µF
22µF
f = 1.2MHz
D
4.75k
24.9k
L
4.7µH
GND
1nF
ON OFF
LT3980
3980 TA05
RUN/SS BOOST
SYNC
536k
DA
100k
22pF