LT3695 Series
30
3695fa
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 1109 REV A PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
5V Step-Down Converter
VIN
BD
LT3695
RUN/SS
VC
0.22μF
D1
B140
VOUT
5V
0.9A, VIN > 6.9V
1A, VIN > 12V
102k
f = 800kHz
536k
10μH
10μF
3695 TA05
470pF
2.2μF
VIN
6.9V TO 36V
TRANSIENT TO 60V
RT
PG
40.2k
16.2k
SYNC
BOOST
ON OFF
SW
DA
FB
GND
PGND
PART NUMBER DESCRIPTION
COMMENTS
LT3970
40V, 350mA, 2MHz High Efciency MicroPower Step-Down DC/DC
Converter
VIN: 4V to 40V Transient to 60V, VOUT(MAX) = 1.21V, IQ = 2μA,
ISD < 1μA, 3mm × 2mm DFN-10, MSOP-10 Packages
LT3689
36V, 60V Transient Protection, 800mA, 2.2MHz High Efciency MicroPower
Step-Down DC/DC Converter with POR Reset and Watchdog Timer
VIN: 3.6V to 36V Transient to 60V, VOUT(MAX) = 0.8V,
IQ = 75μA, ISD < 1μA, 3mm × 3mm QFN-16 Package
LT3685
36V with Transient Protection to 60V, 2A (IOUT), 2.4MHz, High Efciency
Step-Down DC/DC Converter
VIN: 3.6V to 38V, VOUT(MAX) = 0.78V, IQ = 70μA, ISD < 1μA,
3mm
× 3mm DFN-10, MSOP-10E Packages
LT3684
34V with Transient Protection to 36V, 2A (IOUT), 2.8MHz, High Efciency
Step-Down DC/DC Converter
VIN: 3.6V to 34V, VOUT(MAX) = 1.26V, IQ = 850μA, ISD < 1μA,
3mm
× 3mm DFN-10, MSOP-10E Packages
LT3682
36V, 60VMAX, 1A, 2.2MHz High Efciency Micropower Step-Down DC/DC
Converter
VIN: 3.6V to 36V, VOUT(MAX) = 0.8V, IQ = 75μA, ISD < 1μA,
3mm
× 3mm DFN-12 Package
LT3508
36V with Transient Protection to 40V, Dual 1.4A (IOUT), 3MHz, High
Efciency Step-Down DC/DC Converter
VIN: 3.7V to 36V, VOUT(MAX) = 0.8V, IQ = 4.6mA, ISD = 1μA,
4mm
× 4mm QFN-24, TSSOP-16E Packages
LT3507
36V 2.5MHz, Triple (2.4A + 1.5A + 1.5A (IOUT)) with LDO Controller High
Efciency Step-Down DC/DC Converter
VIN: 4V to 36V, VOUT(MAX) = 0.8V, IQ = 7mA, ISD = 1μA,
5mm
× 7mm QFN-38 Package
LT3505
36V with Transient Protection to 40V, 1.4A (IOUT), 3MHz, High Efciency
Step-Down DC/DC Converter
VIN: 3.6V to 34V, VOUT(MAX) = 0.78V, IQ = 2mA, ISD = 2μA,
3mm
× 3mm DFN-8, MSOP-8E Packages
LT3500
36V, 40VMAX, 2A, 2.5MHz High Efciency Step-Down DC/DC Converter and
LDO Controller
VIN: 3.6V to 36V, VOUT(MAX) = 0.8V, IQ = 2.5mA, ISD < 10μA,
3mm
× 3mm DFN-10 Package
LT3493
36V, 1.4A (IOUT), 750kHz High Efciency Step-Down DC/DC Converter
VIN: 3.6V to 36V, VOUT(MAX) = 0.8V, IQ = 1.9mA, ISD < 1μA,
2mm
× 3mm DFN-6 Package
LT3481
34V with Transient Protection to 36V, 2A (IOUT), 2.8MHz, High Efciency
Step-Down DC/DC Converter with Burst Mode Operation
VIN: 3.6V to 34V, VOUT(MAX) = 1.26V, IQ = 50μA, ISD < 1μA,
3mm
× 3mm DFN-10, MSOP-10E Packages
LT3480
36V with Transient Protection to 60V, 2A (IOUT), 2.4MHz, High Efciency
Step-Down DC/DC Converter with Burst Mode Operation
VIN: 3.6V to 38V, VOUT(MAX) = 0.78V, IQ = 70μA, ISD < 1μA,
3mm
× 3mm DFN-10, MSOP-10E Packages
LT3437
60V, 400mA (IOUT), MicroPower Step-Down DC/DC Converter with Burst
Mode Operation
VIN: 3.3V to 60V, VOUT(MAX) = 1.25V, IQ = 100μA, ISD < 1μA,
3mm
× 3mm DFN-10, TSSOP-16E Package
LT3434/LT3435 60V, 2.4A (IOUT), 200kHz/500kHz, High Efciency Step-Down DC/DC
Converter with Burst Mode Operation
VIN: 3.3V to 60V, VOUT(MAX) = 1.2V, IQ = 100μA, ISD < 1μA,
TSSOP-16E Package
LT1976/LT1977 60V, 1.2A (IOUT), 200kHz/500kHz, High Efciency Step-Down DC/DC
Converter with Burst Mode Operation
VIN: 3.3V to 60V, VOUT(MAX) = 1.2V, IQ = 100μA, ISD < 1μA,
TSSOP-16E Package
LT1936
36V, 1.4A (IOUT), 500kHz High Efciency Step-Down DC/DC Converter
VIN: 3.6V to 36V, VOUT(MAX) = 1.2V, IQ = 1.9mA, ISD < 1μA,
MS8E Package
LT1766
60V, 1.2A (IOUT), 200kHz, High Efciency Step-Down DC/DC Converter
VIN: 5.5V to 60V, VOUT(MAX) = 1.2V, IQ = 2.5mA, ISD = 25μA,
TSSOP-16/E Package