lt3980 Linear Technology Corporation, lt3980 Datasheet - Page 20

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

LT3980
TYPICAL APPLICATIONS
20
8.6V TO 40V
TRANSIENT
TRANSIENT
4V TO 58V
TO 80V
TO 80V
V
V
IN
IN
4.7μF
4.7μF
8.45k
4.75k
2.2nF
1nF
ON OFF
ON OFF
137k
24.9k
5V, 1.2MHz Step-Down Converter
2.5V Step-Down Converter
f = 300kHz
f = 1.2MHz
RUN/SS
V
RT
PG
SYNC
C
RUN/SS
V
RT
PG
SYNC
C
V
IN
V
IN
LT3980
GND
LT3980
GND
BD
BOOST
BD
BOOST
SW
DA
FB
SW
DA
FB
1μF
D1
0.47μF
D
100k
100k
D2
215k
536k
4.7μH
4.7μH
L
22pF
L
22pF
3980 TA04
3980 TA05
47μF
V
2.5V
2A
OUT
22μF
V
5V
2A
OUT
3980f