LTC3526-2/LTC3526B-2
16
35262b2fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
l
FAX: (408) 434-0507
l
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2006
LT 0910 REV C • PRINTED IN USA
3.3V Converter with Output OR’d with 5V USB Input
SW
V
IN
1.78M
2.2µH
1M
1µF
MBR120ESFT
4.7µF
35262b2fA07a
LTC3526-2
SHDN
V
OUT
FB
V
BATT
1.8V TO 3.2V
5V USB
V
OUT
3.3V/5V
USB
OFF ON
GND
LDO
DC/DC
typicAl ApplicAtion
relAteD pArts
PART NUMBER DESCRIPTION COMMENTS
LTC3526/LTC3526B
LTC3526L/LTC3526LB
LTC3526L-2/LTC3526LB-2
500mA,
1MHz/2.2MHz, Synchronous Step-Up DC/DC
Converters
with Output Disconnect
94% Efficiency V
IN
: 0.85V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 9µA,
I
SD
< 1µA, 2mm × 2mm DFN-6 Package
LTC3525L-3 400mA
Micropower Synchronous Step-Up DC/DC
Converter with Output Disconnect
93% Efficiency V
IN
: 0.88V to 4.5V, V
OUT
= 3V, I
Q
= 7µA,
I
SD
< 1µA, SC-70 Package
LTC3525-3
LTC3525-3.3
LTC3525-5
400mA
Micropower Synchronous Step-Up DC/DC
Converter with Output Disconnect
95% Efficiency V
IN
: 1V to 4.5V, V
OUT(MAX)
= 3.3V or 5V, I
Q
= 7µA,
I
SD
< 1µA, SC-70 Package
LTC3427
500mA I
SW
, 1.2MHZ, Synchronous Step-Up DC/DC
Converter with Output Disconnect
93% Efficiency V
IN
: 1.8V to 4.5V, V
OUT(MAX)
= 5V,
2mm × 2mm DFN Package
LTC3400/LTC3400B 600mA
I
SW
, 1.2MHz, Synchronous Step-Up
DC/DC Converters
92% Efficiency V
IN
: 1V to 5V, V
OUT(MAX)
= 5V, I
Q
= 19µA/300µA,
I
SD
< 1µA, ThinSOT™ Package
LTC3527/LTC3527-1 Dual 600mA/400mA
I
SW
, 1.2MHz/2.2MHz Synchronous
Step-Up DC/DC Converters
94% Efficiency V
IN
: 0.7V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 12µA,
I
SD
< 1µA, 3mm × 3mm QFN-16 Package
