Datasheet

LTC3245
18
3245fa
For more information www.linear.com/LTC3245
 LINEAR TECHNOLOGY CORPORATION 2013
LT 0713 REV A • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com/LTC3245
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LTC1751-3.3/
LTC1751-5
100mA, 800kHz Regulated Doubler V
IN
: 2V to 5V, V
OUT(MAX)
= 3.3V/5V, I
Q
= 20μA, I
SD
< 2μA, MS8 Package
LTC1983-3/
LTC1983-5
100mA, 900kHz Regulated Inverter V
IN
: 3.3V to 5.5V, V
OUT(MAX)
= –3V/–5V, I
Q
= 25μA, I
SD
< 2μA, ThinSOT™ Package
LTC3200-5 100mA, 2MHz Low Noise, Doubler/
White LED Driver
V
IN
: 2.7V to 4.5V, V
OUT(MAX)
= 5V, I
Q
= 3.5mA, I
SD
< 1μA, ThinSOT Package
LTC3202 125mA, 1.5MHz Low Noise, Fractional
White LED Driver
V
IN
: 2.7V to 4.5V, V
OUT(MAX)
= 5.5V, I
Q
= 2.5mA, I
SD
< 1μA, DFN, MS Packages
LTC3204-3.3/
LTC3204B-3.3/
LTC3204-5/
LTC3204B-5
Low Noise, Regulated Charge Pumps
in (2mm × 2mm) DFN Package
V
IN
: 1.8V to 4.5V (LTC3204B-3.3), 2.7V to 5.5V (LTC3204B-5), I
Q
= 48μA, B Version without
Burst Mode Operation, 6-Lead (2mm × 2mm) DFN Package
LTC3440 600mA (I
OUT
) 2MHz Synchronous
Buck-Boost DC/DC Converter
95% Efficiency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 2.5V, I
Q
= 25μA, I
SD
≤ 1μA, 10-Lead MS
Package
LTC3441 High Current Micropower 1MHz
Synchronous Buck-Boost DC/DC
Converter
95% Efficiency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 2.5V, I
Q
= 25μA, I
SD
≤ 1μA, DFN Package
LTC3443 High Current Micropower 600kHz
Synchronous Buck-Boost DC/DC
Converter
96% Efficiency, V
IN
: 2.4V to 5.5V, V
OUT(MIN)
= 2.4V, I
Q
= 28μA, I
SD
< 1μA, DFN Package
LTC3240-3.3/
LTC3240-2.5
3.3V/2.5V Step-Up/Step-Down Charge
Pump DC/DC Converter
V
IN
: 1.8V to 5.5V, V
OUT(MAX)
= 3.3V / 2.5V, I
Q
= 65μA, I
SD
< 1μA, (2mm × 2mm) DFN Package
LTC3260 Low Noise Dual Supply Inverting
Charge Pump
V
IN
Range: 4.5V to 32V, I
Q
= 100µA, 100mA Charge Pump, 50mA Positive LDO, 50mA
Negative LDO
LTC3261 High Voltage Low I
Q
Inverting Charge
Pump
V
IN
Range: 4.5V to 32V, I
Q
= 60µA, 100mA Charge Pump
C
+
C
–
V
IN
SEL2
BURST
SEL1
V
OUT
OUTS/ADJ
PGOOD
GND
LTC3245
4 × AA
V
OUT
= 5V
I
VOUT
UP TO 250mA
3245 TA05
1µF
12V TO 24V
1µF
10µF
+
+
+
+
Wide V
IN
5V Supply with Battery Backup