Datasheet

LT3975
22
3975f
TYPICAL APPLICATIONS
5V Step-Down Converter 4V Step-Down Converter with a High Impedance Input Source
12V Step-Down Converter 2.5V Step-Down Converter
5V, 2MHz Step-Down Converter with Power Good 1.8V Step-Down Converter
V
IN
EN BOOSTOFF ON
V
IN
5.7V TO 42V
PG
0.47µF
PDS360
47µF
1210
3975 TA02
10nF
10µF
316k
f = 800kHz
L = IHLP-2020CZ-01
54.9k
V
OUT
5V
2.5A
4.7µH
LT3975
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
V
IN
EN BOOSTOFF ON
V
IN
12.9V TO 42V
PG
0.47µF
PDS360
22µF
1210
×2
3975 TA03
10nF
10µF
110k
f = 800kHz
L = IHLP-3232CZ-01
54.9k
V
OUT
12V
2.5A
10µH
LT3975
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
V
IN
EN
BOOST
OFF ON
V
IN
5.9V TO 18V
(42V TRANSIENTS)
0.47µF
PDS360
22µF
1210
3975 TA04
10nF
4.7µF
316k
150k
f = 2MHz
L = IHLP-2525CZ-01
14.7k
V
OUT
5V
2.5A
PGOOD
2.2µH
LT3975
SS
RT
SW
OUT
PG
FB
SYNC GND
1M
10pF
V
IN
PG BOOST
EN
0.47µF
PDS360
47µF
1210
3975 TA05
47nF
C
BULK
100µF
24V
10µF
432k
f = 800kHz
L = IHLP-2525EZ-01
54.9k
499k
5.49M
V
OUT
4V
2.5A
4.7µH
LT3975
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
+
V
+
–
V
IN
EN
BOOST
OFF ON
V
IN
4.3V TO 42V
PG
0.47µF
PDS360
100µF
1210
3975 TA06
10nF
10µF
909k
f = 400kHz
L = IHLP-2525EZ-01
130k
V
OUT
2.5V
2.5A
6.8µH
DFLS160
LT3975
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
V
IN
EN BOOSTOFF ON
V
IN
4.3V TO 27V
PG
0.47µF
PDS360
100µF
1210
3975 TA07
10nF
10µF
1M
f = 500kHz
L = IHLP-2020CZ-01
97.6k
V
OUT
1.8V
2.5A
3.3µH
DFLS160
LT3975
SS
RT
SW
OUT
FB
SYNC GND
499k
10pF