lt3980 Linear Technology Corporation, lt3980 Datasheet - Page 19

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

TYPICAL APPLICATIONS
4.3V TO 58V
TRANSIENT
6.5V TO 58V
TRANSIENT
TO 80V
TO 80V
V
V
IN
IN
4.7μF
4.7μF
4.75k
4.75k
2.2nF
1nF
ON OFF
ON OFF
97.6k
97.6k
3.3V Step-Down Converter
5V Step-Down Converter
f = 400kHz
f = 400kHz
RUN/SS
V
RT
PG
SYNC
RUN/SS
V
RT
PG
SYNC
C
C
V
V
IN
IN
LT3980
LT3980
GND
GND
BD
BD
BOOST
BOOST
SW
SW
DA
DA
FB
FB
D
0.47μF
0.47μF
D
100k
100k
316k
536k
6.8μH
8.2μH
L
L
22pF
22pF
3980 TA03
3980 TA02
47μF
V
3.3V
2A
47μF
V
5V
2A
OUT
OUT
LT3980
19
3980f