Linear Technology LT3695 Series, Техническое описание

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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
V
IN
BD
LT3695
RUN/SS
V
C
0.22μF
D1
B140
V
OUT
5V
0.9A, V
IN
> 6.9V
1A, V
IN
> 12V
102k
f = 800kHz
536k
10μH
10μF
3695 TA05
470pF
2.2μF
V
IN
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 Effi ciency MicroPower Step-Down DC/DC
Converter V
IN
: 4V to 40V Transient to 60V, V
OUT(MAX)
= 1.21V, I
Q
= 2μA,
I
SD
< 1μA, 3mm
×
2mm DFN-10, MSOP-10 Packages
LT3689 36V, 60V Transient Protection, 800mA, 2.2MHz High Effi ciency MicroPower
Step-Down DC/DC Converter with POR Reset and Watchdog Timer V
IN
: 3.6V to 36V Transient to 60V, V
OUT(MAX)
= 0.8V,
I
Q
= 75μA, I
SD
< 1μA, 3mm
×
3mm QFN-16 Package
LT3685 36V with Transient Protection to 60V, 2A (I
OUT
), 2.4MHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
: 3.6V to 38V, V
OUT(MAX)
= 0.78V, I
Q
= 70μA, I
SD
< 1μA,
3mm
×
3mm DFN-10, MSOP-10E Packages
LT3684 34V with Transient Protection to 36V, 2A (I
OUT
), 2.8MHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
: 3.6V to 34V, V
OUT(MAX)
= 1.26V, I
Q
= 850μA, I
SD
< 1μA,
3mm
×
3mm DFN-10, MSOP-10E Packages
LT3682 36V, 60V
MAX
, 1A, 2.2MHz High Effi ciency Micropower Step-Down DC/DC
Converter
V
IN
: 3.6V to 36V, V
OUT(MAX)
= 0.8V, I
Q
= 75μA, I
SD
< 1μA,
3mm
×
3mm DFN-12 Package
LT3508 36V with Transient Protection to 40V, Dual 1.4A (I
OUT
), 3MHz, High
Effi ciency Step-Down DC/DC Converter
V
IN
: 3.7V to 36V, V
OUT(MAX)
= 0.8V, I
Q
= 4.6mA, I
SD
= 1μA,
4mm
×
4mm QFN-24, TSSOP-16E Packages
LT3507 36V 2.5MHz, Triple (2.4A + 1.5A + 1.5A (I
OUT
)) with LDO Controller High
Effi ciency Step-Down DC/DC Converter
V
IN
: 4V to 36V, V
OUT(MAX)
= 0.8V, I
Q
= 7mA, I
SD
= 1μA,
5mm
×
7mm QFN-38 Package
LT3505 36V with Transient Protection to 40V, 1.4A (I
OUT
), 3MHz, High Effi ciency
Step-Down DC/DC Converter
V
IN
: 3.6V to 34V, V
OUT(MAX)
= 0.78V, I
Q
= 2mA, I
SD
= 2μA,
3mm
×
3mm DFN-8, MSOP-8E Packages
LT3500 36V, 40V
MAX
, 2A, 2.5MHz High Effi ciency Step-Down DC/DC Converter and
LDO Controller
V
IN
: 3.6V to 36V, V
OUT(MAX)
= 0.8V, I
Q
= 2.5mA, I
SD
< 10μA,
3mm
×
3mm DFN-10 Package
LT3493 36V, 1.4A (I
OUT
), 750kHz High Effi ciency Step-Down DC/DC Converter V
IN
: 3.6V to 36V, V
OUT(MAX)
= 0.8V, I
Q
= 1.9mA, I
SD
< 1μA,
2mm
×
3mm DFN-6 Package
LT3481 34V with Transient Protection to 36V, 2A (I
OUT
), 2.8MHz, High Effi ciency
Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.6V to 34V, V
OUT(MAX)
= 1.26V, I
Q
= 50μA, I
SD
< 1μA,
3mm
×
3mm DFN-10, MSOP-10E Packages
LT3480 36V with Transient Protection to 60V, 2A (I
OUT
), 2.4MHz, High Effi ciency
Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.6V to 38V, V
OUT(MAX)
= 0.78V, I
Q
= 70μA, I
SD
< 1μA,
3mm
×
3mm DFN-10, MSOP-10E Packages
LT3437 60V, 400mA (I
OUT
), MicroPower Step-Down DC/DC Converter with Burst
Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MAX)
= 1.25V, I
Q
= 100μA, I
SD
< 1μA,
3mm
×
3mm DFN-10, TSSOP-16E Package
LT3434/LT3435 60V, 2.4A (I
OUT
), 200kHz/500kHz, High Effi ciency Step-Down DC/DC
Converter with Burst Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MAX)
= 1.2V, I
Q
= 100μA, I
SD
< 1μA,
TSSOP-16E Package
LT1976/LT1977 60V, 1.2A (I
OUT
), 200kHz/500kHz, High Effi ciency Step-Down DC/DC
Converter with Burst Mode Operation
V
IN
: 3.3V to 60V, V
OUT(MAX)
= 1.2V, I
Q
= 100μA, I
SD
< 1μA,
TSSOP-16E Package
LT1936 36V, 1.4A (I
OUT
), 500kHz High Effi ciency Step-Down DC/DC Converter V
IN
: 3.6V to 36V, V
OUT(MAX)
= 1.2V, I
Q
= 1.9mA, I
SD
< 1μA,
MS8E Package
LT1766 60V, 1.2A (I
OUT
), 200kHz, High Effi ciency Step-Down DC/DC Converter V
IN
: 5.5V to 60V, V
OUT(MAX)
= 1.2V, I
Q
= 2.5mA, I
SD
= 25μA,
TSSOP-16/E Package