Datasheet

LT3692A
42
3692afc
For more information www.linear.com/3692A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com/3692A
 LINEAR TECHNOLOGY CORPORATION 2011
LT 0313 REV C • PRINTED IN USA
relaTeD parTs
Typical applicaTion
FMEA Fault Tolerant 3.3V/2A and 5V/2A Dual Converter
BST1
SW1
V
OUT1
CMPI1
CMPO1
SS1
ILIM1
V
C1
RT/SYNC
DIV
FB1
IND1
SW2
V
OUT2
CMPI2
CMPO2
SS2
ILIM2ILIM2
SS2
V
C2
CLKOUT
T
J
FB2
IND2
0.22µF
4.7µF
4.7µF
47µF
4.22k
33pF 820pF 33pF
10nF
806Ω
806Ω
100µF
PG2
13.0k12.7k
10nF 680pF 22nF
3692a TA10
15.4k
CLOCKOUT
500kHz
49.9k
V
IN1
6V TO 36V
(60V TRANSIENT)
V
OUT1
5V
2A
500kHz
PG1
6.8µH
BST2
SHDN1SHDN2 SHDN2
V
IN1
LT3692A
GND
V
IN2
0.22µF
2.49k
100k
249k249k
V
OUT2
3.3V
2A
500kHz
5.6µH
PART NUMBER DESCRIPTION COMMENTS
LT3692 36V with Transient Protection to 60V, Dual 3.5A, 2.5MHz, High Efficiency
Step-Down DC/DC Converter
V
IN
= 3V to 36V, Transients to 60V, V
OUT(MIN)
= 0.8V,
I
Q
= 4mA, I
SD
<10µA, 5mm × 5mm QFN-32
LT3507 36V, Triple 2.4A, 1.4A and 1.4A (I
OUT
), 2.5MHz, High Efficiency
Step-Down DC/DC Converter with LDO Controller
V
IN
= 4V to 36V, V
OUT(MIN)
= 0.8V, I
Q
= 7mA, I
SD
= 1µA,
5mm × 7mm QFN-38
LT3508 36V with T
ransient 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,
4mm × 4mm QFN-24, TSSOP-16E
LT3680 36V
, 3A, 2.4MHz 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-10, MSOP-10E
LT3693 36V
, 3A, 2.4MHz High Efficiency Step-Down DC/DC Converter V
IN
= 3.6V to 36V, V
OUT(MIN)
= 0.8V, I
Q
= 1.3mA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E
LT3480 36V with T
ransient 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, Transients to 60V, V
OUT(MIN)
= 0.78V,
I
Q
= 70µA, I
SD
< 1µA, 3mm × 3mm DFN-10, MSOP-10E
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, Transients to 80V, V
OUT(MIN)
= 0.79V,
I
Q
= 75µA, I
SD
< 1µA, 3mm × 4mm DFN-16, MSOP-16E
LT3971 38V, 1.2A (I
OUT
), 2MHz, High Efficiency Step-Down DC/DC Converter
with Only 2.8µA of Quiescent Current
V
IN
= 4.2V to 38V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E
LT3991 55V
, 1.2A (I
OUT
), 2MHz, High Efficiency Step-Down DC/DC Converter
with Only 2.8µA of Quiescent Current
V
IN
= 4.2V to 55V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E