Datasheet
LT3971/LT3971-3.3/LT3971-5
28
3971fd
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 0712 REV D • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT3970 40V, 350mA, 2.2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 2.5µA
V
IN
: 4.2V to 40V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA,
I
SD
<1µA, 3mm × 2mm DFN-10 and MSOP-10 Packages
LT3990 62V, 350mA, 2.2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 2.5µA
V
IN
: 4.2V to
62V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA,
I
SD
<1µA, 3mm × 2mm DFN-10 and MSOP-10 Packages
LT3991 55V, 1.2A, 2.2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 2.8µA
V
IN
: 4.3V to
38V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA,
I
SD
<1µA, 3mm × 3mm DFN-10 and MSOP-10E Packages
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 Package
LT3689 36V, 60V with Transient Protection 800mA, 2.2MHz, High Efficiency
Micropower Step-Down DC/DC Converter with POR Reset 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
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
36V, Transient to 60V, V
OUT(MIN)
= 0.78V, I
Q
= 70µA,
I
SD
<1µA, 3mm × 3mm DFN-10 and MSOP-10E Packages
LT3980 58V with Transient Protection to 80V, 2A (I
OUT
), 2.4MHz High Efficiency
Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.6V to
58V, Transient to 80V, V
OUT(MIN)
= 0.78V, I
Q
= 85µA,
I
SD
<1µA, MSOP-16E 3mm × 4mm DFN-16 Package and
MSOP-16E Packages