lt3681 Linear Technology Corporation, lt3681 Datasheet - Page 21

• Manufacturer Part Number: lt3681
• Description: 36v, 2a, 2.8mhz Step-down Switching Regulator With Integrated Power Schottky Diode
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
TRANSIENT TO 36V
8.6V TO 22V
4V TO 34V
2.2 F
4.7 F
V
V
IN
IN
D2: MBR0540
L: SUMIDA CDRH8D43-4R7
L: TOKO FDV0620-2R2
470pF
680pF
6.8k
22k
16.9k
84.5k
ON OFF
ON OFF
5V, 2MHz Step-Down Converter
2.5V Step-Down Converter
f = 2MHz
f = 600kHz
RUN/SS
RUN/SS
V
RT
PG
V
RT
PG
C
C
V
V
IN
IN
LT3681
LT3681
GND
GND
BD
BD
BOOST
BOOST
BIAS
BIAS
SW
SW
DC
DA
DC
DA
FB
FB
200k
200k
0.47 F
1 F
D2
590k
196k
4.7 H
2.2 H
L
L
3681 TA04
3681 TA05
47 F
10 F
V
5V
2A
V
2.5V
2A
OUT
OUT
LT3681
21
3681f