LT3970 Series
22
3970fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2009
LT 0913 REV C • PRINTED IN USA
relaTeD parTs
PART NUMBER DESCRIPTION COMMENTS
LT3971 38V, 1.2A (I
OUT
), I
Q
= 2.8µA High Efficiency Step-Down DC/DC
Converter
V
IN
= 4.3V to 38V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
MSOP-10E, 3mm × 3mm DFN-10
LT3991
55V, 1.2A (I
OUT
), I
Q
= 2.8µA High Efficiency Step-Down DC/DC
Converter
V
IN
= 4.3V to 55V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
MSOP-10E, 3mm × 3mm DFN-10
LT3689
36V, 60V Transient Protection, 800mA, 2.2MHz High Efficiency
Micropower Step-Down DC/DC Converter with POR Reset and
Watchdog Timer
V
IN
= 3.6V to 36V, Transient to 60V, V
OUT(MIN)
= 0.8V, I
Q
= 75µA,
I
SD
< 1µA, 3mm × 3mm QFN-16
LT3682 36V, 60V
MAX
, 1A, 2.2MHz High Efficiency Micropower Step-Down
DC/DC Converter
V
IN
= 3.6V to 36V, V
OUT(MIN)
= 0.8V, I
Q
= 75µA, I
SD
< 1µA,
3mm × 3mm DFN-12
LT3480
36V with Transient Protection to 60V, 2A (I
OUT
), 2.4MHz, High
Efficiency Step-Down DC/DC Converter with Burst Mode
®
Operation
V
IN
= 3.6V to 38V, V
OUT(MIN)
= 0.78V, I
Q
= 70µA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E
LT3685
36V with Transient Protection to 60V, 2A (I
OUT
), 2.4MHz, High
Efficiency Step-Down DC/DC Converter
V
IN
= 3.6V to 38V, V
OUT(MIN)
= 0.78V, I
Q
= 70µA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E
LT3481
34V with Transient Protection to 36V, 2A (I
OUT
), 2.8MHz, High
Efficiency Step-Down DC/DC Converter with Burst Mode Operation
V
IN
= 3.6V to 34V, V
OUT(MIN)
= 1.26V, I
Q
= 50µA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E
LT1976/L
T1977 60V, 1.2A (I
OUT
), 200/500kHz, High Efficiency Step-Down DC/DC
Converter with Burst Mode Operation
V
IN
= 3.3V to 60V, V
OUT(MIN)
= 1.20V, I
Q
= 100µA, I
SD
< 1µA,
TSSOP-16E
