LTC3240-3.3_15 Datasheet, PDF (12/12 Pages) Linear Technology – 3.3V/2.5V Step-Up/ Step-Down Charge Pump DC/DC Converter

LTC3240-3.3/LTC3240-2.5
TYPICAL APPLICATIO
2.5V Output from 2-Cell NiMH
1µF
1.8V TO 3V
2-CELL
NiMH
5
2 ^C–
V_IN
4
C⁺
V_OUT
3
1µF
LTC3240-2.5
1, 7
GND
6
OFF ON
SHDN
2.5V
4.7µF
3240 TA02
RELATED PARTS
PART NUMBER
DESCRIPTION
LTC1751-3.3/LTC1751-5 100mA, 800kHz Regulated Doubler
LTC1983-3/LTC1983-5 100mA, 900kHz Regulated Inverter
LTC3200-5
100mA, 2MHz Low Noise, Doubler/White LED
Driver
LTC3202
125mA, 1.5MHz Low Noise, Fractional White
LED Driver
LTC3204-3.3
LTC3204B-3.3
LTC3204-5
LTC3204B-5
Low Noise, Regulated Charge Pumps in
(2mm × 2mm) DFN Package
LTC3440
600mA (I_OUT) 2MHz Synchronous Buck-Boost
DC/DC Converter
LTC3441
High Current Micropower 1MHz Synchronous
Buck-Boost DC/DC Converter
LTC3443
High Current Micropower 600kHz Synchronous
Buck-Boost DC/DC Converter
ThinSOT is a trademark of Linear Technology Coorporation
COMMENTS
V_IN: 2V to 5V, V_OUT(MAX) = 3.3V/5V, I_Q = 20µA, I_SD < 2µA, MS8 Package
V_IN: 3.3V to 5.5V, V_OUT(MAX) = –3V/–5V, I_Q = 25µA, I_SD < 2µA, ThinSOT^TM
Package
V_IN: 2.7V to 4.5V, V_OUT(MAX) = 5V, I_Q = 3.5mA, I_SD < 1µA, ThinSOT Package
V_IN: 2.7V to 4.5V, V_OUT(MAX) = 5.5V, I_Q = 2.5mA, I_SD < 1µA, DFN, MS
Packages
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
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 2.5V, I_Q = 25µA, I_SD ≤ 1µA,
10-Lead MS Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 2.5V, I_Q = 25µA, I_SD ≤ 1µA,
DFN Package
96% Efficiency, V_IN: 2.4V to 5.5V, V_OUT(MIN) = 2.4V, I_Q = 28µA, I_SD < 1µA,
DFN Package
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3240fb
LT 0806 REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2006