Datasheet
Table Of Contents

LT3686
28
3686fc
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 0511 REV C • PRINTED IN USA
PART NUMBER DESCRIPTION COMMENTS
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,
16-Pin 3mm 3mm QFN Package
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, 12-Pin 3mm 3mm
DFN Package
LT3970 40V, 350mA (I
OUT
), 2.2MHz, High Efficiency Step-Down
DC/DC Converter with Only 2.5µA of Quiescent Current
V
IN
: 4.2V to 40V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA, I
SD
<1µA, 10-Pin
3mm 3mm DFN, 10-Pin MSOP Packages
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, 10-Pin
3mm 3mm DFN, 10-Pin MSOP Packages
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, 10-Pin
3mm 3mm DFN, 10-Pin MSOP Packages
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, 10-Pin
3mm 3mm DFN, 10-Pin MSOP Packages
LT3684 34V with Transient Protection to 36V, 2A (I
OUT
), 2.8MHz,
High Efficiency Step-Down DC/DC Converter
V
IN
: 3.6V to 34V, V
OUT(MIN)
= 1.26V, I
Q
= 850µA, I
SD
<1µA, 10-Pin
3mm 3mm DFN, 10-Pin MSOP Packages
LT3508 36V with Transient Protection to 40V, Dual 1.4A (I
OUT
),
3MHz, High Efficiency Step-Down DC/DC Converter
V
IN
: 3.7V to 37V, V
OUT(MIN)
= 0.8V, I
Q
= 4.6mA, I
SD
= 1µA, 24-Pin
4mm 4mm QFN, 16-Pin TSSOP Packages
LT3505 36V with Transient Protection to 40V, 1.4A (I
OUT
), 3MHz,
High Efficiency Step-Down DC/DC Converter
V
IN
: 3.6V to 34V, V
OUT(MIN)
= 0.78V, I
Q
= 2mA, I
SD
= 2µA, 8-Pin
3mm 3mm DFN, 8-Pin MSOP Packages
LT3500 36V, 40V
MAX
, 2A, 2.5MHz, High Efficiency Step-Down DC/
DC Converter and LDO Controller
V
IN
: 3.6V to 36V, V
OUT(MIN)
= 0.8V, I
Q
= 2.5mA, I
SD
<10µA, 10-Pin
3mm 3mm DFN Package
LT3507 36V, 2.5MHz Triple (2.4A + 1.5A +1.5A (I
OUT
)) with LDO
Controller High Efficiency Step-Down DC/DC Converter
V
IN
: 4V to 36V, V
OUT(MIN)
= 0.8V, I
Q
= 7mA, I
SD
= 1µA, 38-Pin 5mm 7mm
QFN Package
LT3437 60V, 400mA (I
OUT
), MicroPower Step-Down DC/DC
Converter with Burst Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.25V, I
Q
= 100µA, I
SD
<1µA, 10-Pin
3mm 3mm DFN, 16-Pin TSSOP Packages
LT1976/LT1977 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)
= 1.2V, I
Q
= 100µA, I
SD
<1µA, 16-Pin TSSOP
Package
LT3434/LT3435 60V, 2.4A (I
OUT
), 200/500kHz, High Efficiency
Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MIN)
= 1.2V, I
Q
= 100µA, I
SD
<1µA, 16-Pin TSSOP
Package
LT1936 36V, 1.4A (I
OUT
), 500kHz, High Efficiency Step-Down
DC/DC Converter
V
IN
: 3.6V to 36V, V
OUT(MIN)
= 1.2V, I
Q
= 1.9mA, I
SD
<1µA, 8-Pin MS Package
LT3493 36V, 1.4A (I
OUT
), 750kHz, High Efficiency Step-Down
DC/DC Converter
V
IN
: 3.6V to 36V, V
OUT(MIN)
= 0.8V, I
Q
= 1.9mA, I
SD
<1µA, 6-Pin
2mm 3mm DFN Package
LT1766 60V, 1.2A (I
OUT
), 200kHz, High Efficiency Step-Down
DC/DC Converter
V
IN
: 5.5V to 60V, V
OUT(MIN)
= 1.2V, I
Q
= 2.5mA, I
SD
= 25µA, 16-Pin TSSOP
Package
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