lt3980 Linear Technology Corporation, lt3980 Datasheet - Page 21

• Manufacturer Part Number: lt3980
• Description: 58v, 2a, 2.4mhz Step-down Switching Regulator With 85?a Quiescent Current
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
15V TO 58V
TRANSIENT
3.5V TO 32V
TO 80V
V
V
IN
IN
10μF
4.7μF
12k
2.49k
1nF
680pF
ON OFF
ON OFF
60.4k
97.6k
1.8V Step-Down Converter
12V Step-Down Converter
f = 600kHz
f = 400kHz
RUN/SS
V
RT
PG
SYNC
RUN/SS
V
RT
PG
C
SYNC
C
V
V
IN
IN
LT3980
GND
LT3980
GND
BD
BOOST
BD
BOOST
SW
DA
FB
SW
DA
FB
50k
0.47μF
D
0.47μF
D
100k
715k
127k
15μH
3.3μH
L
L
22pF
3980 TA06
3980 TA08
22μF
V
12V
2A
100μF
V
1.8V
2A
OUT
OUT
LT3980
21
3980f