LT3975
TYPICAL APPLICATION
1.2V Step-Down Converter
DFLS160
V
IN
4.3V TO 27V
(42V TRANSIENT)
3.3V
V
IN
OFF ON
EN
PG
BOOST
SW
4.7µH
0.47µF
PDS360
10µF
LT3975
SS
RT
OUT
FB
V
1.2V
2.5A
OUT
SYNC
GND
10nF
100µF
1210
130k
3975 TA08
f = 400kHz
L = IHLP-2525EZ-01
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
= 3.6V to 38V, Transients to 60V, V
LT3480
LT3980
LT3971
LT3991
LT3970
LT3990
36V with Transient Protection to 60V, 2A (I ), 2.4MHz, High
V
= 0.78V,
OUT(MIN)
OUT
IN
Efficiency Step-Down DC/DC Converter with Burst Mode® Operation I = 70µA, I < 1µA, 3mm × 3mm DFN-10, MSOP-10E
Q
SD
58V with Transient Protection to 80V, 2A (I ), 2.4MHz, High
Efficiency Step-Down DC/DC Converter with Burst Mode Operation
V
Q
= 3.6V to 58V, Transients to 80V, V
= 0.79V,
OUT
IN
OUT(MIN)
I = 75µA, I < 1µA, 3mm × 4mm DFN-16, MSOP-16E
SD
38V, 1.2A (I ), 2MHz, High Efficiency Step-Down
V
= 4.2V to 38V, V
= 1.2V, I = 2.8µA, I < 1µA,
OUT(MIN) Q SD
OUT
IN
DC/DC Converter with Only 2.8µA of Quiescent Current
3mm × 3mm DFN-10, MSOP-10E
55V, 1.2A (I ), 2MHz, High Efficiency Step-Down
V
= 4.2V to 55V, V
= 1.2V, I = 2.8µA, I < 1µA,
OUT(MIN) Q SD
OUT
IN
DC/DC Converter with Only 2.8µA of Quiescent Current
3mm × 3mm DFN-10, MSOP-10E
V = 4.2V to 40V, V = 1.2V, I = 2.5µA, I < 0.7µA,
IN
40V, 350mA (I ), 2MHz, High Efficiency Step-Down
OUT
OUT(MIN)
Q
SD
DC/DC Converter with Only 2.5µA of Quiescent Current
2mm × 3mm DFN-10, MSOP-10E
V = 4.2V to 62V, V = 1.2V, I = 2.5µA, I < 0.7µA,
IN
62V, 350mA (I ), 2.2MHz, High Efficiency Step-Down
OUT
OUT(MIN)
Q
SD
DC/DC Converter with Only 2.5µA of Quiescent Current
3mm × 3mm DFN-10, MSOP-16E
3975f
LT 0812 • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
24
●
●
LINEAR TECHNOLOGY CORPORATION 2012
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
Linear [ Linear ]
