Datasheet

LT3991/LT3991-3.3/LT3991-5
24
3991fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2009
LT 0211 REV A • PRINTED IN USA
relaTeD parTs
PART 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
<1 µA,
3mm × 2mm DFN-10, 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
<1 µA,
3mm × 2mm DFN-10, MSOP-10 Packages
LT3971
38V, 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)
= 1.21V, I
Q
= 2.8µA, I
SD
<1 µA,
3mm × 3mm DFN-10, 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
<1 µA,
3mm × 3mm DFN-12 Package
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
<1 µA, 3mm × 3mm QFN-16 Package
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
<1 µA, 3mm × 3mm DFN-10, 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 60V), V
OUT(MIN)
= 0.78V, I
Q
= 85µA,
I
SD
<1 µA, 3mm × 4mm DFN-16, MSOP-16E Packages