Datasheet

LTC3535
16
3535fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2009
LT 0910 REV A • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
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
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
LTC3526/LTC3526B
LTC3526-2
LTC3526B-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
LTC3526L
LTC3526LB
550mA, 1MHz, Synchronous Step-Up DC/DC
Converters with Output Disconnect
94% Efficiency V
IN
: 0.7V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 9µA,
I
SD
< 1µA, 2mm × 2mm DFN-6 Package
LTC3526/LTC3526B 500mA (I
SW
), 1MHz Synchronous Step-Up DC/DC
Converter with Output Disconnect
94% Efficiency V
IN
: 0.8V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 9µA,
I
SD
< 1µA, 2mm × 2mm DFN-6 Package
LTC3527/LTC3527-1 Dual 800mA and 400mA (ISW), 2.2MHz, Synchronous
Step-Up DC/DC Converter with Output Disconnect
94% Efficiency V
IN
: 0.7V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 12µA,
I
SD
< 1µA, 3mm × 3mm QFN-16 Package
LTC3528
LTC3528-2
1A (I
SW
), 1MHz Synchronous Step-Up DC/DC with
Output Disconnect Converter
94% Efficiency V
IN
: 0.7V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 12µA,
I
SD
< 1µA, 2mm × 3mm DFN-8 Package
LTC3537 600mA , 2.2MHz, Synchronous Step-Up DC/DC
Converter with Output Disconnect and 100mA LDO
94% Efficiency V
IN
: 0.7V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 30µA,
I
SD
< 1µA, 3mm × 3mm QFN-16 Package
LTC3539
LTC3539-2
2A (I
SW
), 1/2MHz, Synchronous Step-Up DC/DC
Converter with Output Disconnect
94% Efficiency V
IN
: 0.7V to 5V, V
OUT(MAX)
= 5.25V, I
Q
= 10µA,
I
SD
< 1µA, 2mm × 3mm DFN-8 Package
3535 TA03
4.7µH
COILCRAFT XFL4020-472
COILCRAFT XFL4020-472
SINGLE
AAA CELL
3.3V
V
OUT
10µF
2.2µF
4.7µH
30.1k
1M
1.78M
SW1
V
IN1
LTC3535
V
OUT1
V
OUT2
FB1
FB2
SW2GND GND
SHDN1
V
IN2
SHDN2
+
47µF
1nF
330pF
T1
1:100
COILCRAFT
LPR6235-752SML
TEG
FERROTEC 9500/127/100B
1µF
LTC3108
V
STORE
V
OUT2_EN
2.35V PEAK
V
OUT
V
OUT2
VLDO
PGD
C1
C2
SW
VS1
VS2
V
AUX
GND
2.2µF
C1
1.5mF
1µF
D1A
D1B
BAT54C
••
+
3.3V Converter Operates from a Single Cell or from Harvested Thermal Energy, as Low as 1°C ∆T
TYPICAL APPLICATION