Datasheet

LTC3532
16
3532fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
LT 0308 REV C • PRINTED IN USA
PART NUMBER DESCRIPTION COMMENTS
LTC3440 600mA I
OUT
, 2MHz, Synchronous Buck-
Boost DC/DC Converter
V
IN
: 2.5V to 5.5V, V
OUT(RANGE)
: 2.5V to 5.5V, I
Q
= 25μA, I
SD
= <1μA, MS10/DFN Package
LTC3441 1.2A I
OUT
, 1MHz, Synchronous Buck-
Boost DC/DC Converter
V
IN
: 2.4V to 5.5V, V
OUT(RANGE)
: 2.4V to 5.25V, I
Q
= 25μA, I
SD
= <1μA, DFN Package
LTC3442 1.2A I
OUT
, 2MHz, Synchronous Buck-
Boost DC/DC Converter
V
IN
: 2.4V to 5.5V, V
OUT(RANGE)
: 2.4V to 5.25V, I
Q
= 35μA, I
SD
= <1μA, DFN Package
LTC3443 1.2A I
OUT
, 600kHz, Synchronous Buck-
Boost DC/DC Converter
V
IN
: 2.4V to 5.5V, V
OUT(RANGE)
: 2.4V to 5.25V, I
Q
= 28μA, I
SD
= <1μA, MS10 Package
LTC3444 500mA I
OUT
, 1.5MHz, Synchronous
Buck-Boost DC/DC Converter Optimized
for WCDMA
V
IN
: 2.7V to 5.5V, V
OUT(RANGE)
: 0.5V to 5.25V, I
SD
= <1μA, 3 × 3 DFN Package
LTC3531/
LTC3531-3.3/
LTC3531-3
200mA I
OUT
, Synchronous Buck-Boost
DC/DC Converters in SOT-23
V
IN
: 1.8V to 5.5V, V
OUT(RANGE)
: 2V to 5.25V, I
Q
= 16μA, I
SD
= <1μA, SOT-23 and 3 × 3 DFN
Packages
RELATED PARTS
SW1
SW1
V
IN
SHDN/SS
BURST
R
T
SW2
SW2
V
OUT
FB
FB
V
C
V
C
GND
LTC3532
3532 TA04
R4
28.7k
R3
200k
C1
4.7μF
R
T
BURST
L1
2.2μH
V
OUT
3.3V
300mA
C3
10μF
C4
68pF
R9
1k
R1
340k
R6
12.1k
C2
220pF
R2
200k
V
IN
2.5V TO 4.2V
C5
0.01μF
L1: COILCRAFT LPO6610-222M
Low Profi le Li-Ion to 3.3V at 300mA Converter with Automatic Burst Mode Operation
TYPICAL APPLICATIO
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