LTC3532_15 Datasheet, PDF (16/16 Pages) Linear Technology – Micropower Synchronous Buck-Boost DC/DC Converter

LTC3532
TYPICAL APPLICATIO
Low Profile Li-Ion to 3.3V at 300mA Converter with Automatic Burst Mode Operation
V_IN
2.5V TO 4.2V
R3
200k
C1
4.7μF
L1
2.2μH
SW1
SW1
V_IN
BURST
SHDN/SS _LTC3532
BURST
R_T
R_T
C5
0.01μF
R4
28.7k
SW2
SW2
V_OUT
FB
FB
V_C ^VC
GND
R6
12.1k
C2
220pF
R1
R9
340k 1k
V_OUT
3.3V
300mA
C4
68pF
C3
10μF
R2
200k
L1: COILCRAFT LPO6610-222M
3532 TA04
RELATED PARTS
PART NUMBER
LTC3440
LTC3441
LTC3442
LTC3443
LTC3444
LTC3531/
LTC3531-3.3/
LTC3531-3
DESCRIPTION
COMMENTS
600mA I_OUT, 2MHz, Synchronous Buck- V_IN: 2.5V to 5.5V, V_OUT(RANGE): 2.5V to 5.5V, I_Q = 25μA, I_SD = <1μA, MS10/DFN Package
Boost DC/DC Converter
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
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
1.2A I_OUT, 600kHz, Synchronous Buck- V_IN: 2.4V to 5.5V, V_OUT(RANGE): 2.4V to 5.25V, I_Q = 28μA, I_SD = <1μA, MS10 Package
Boost DC/DC Converter
500mA I_OUT, 1.5MHz, Synchronous
V_IN: 2.7V to 5.5V, V_OUT(RANGE): 0.5V to 5.25V, I_SD = <1μA, 3 × 3 DFN Package
Buck-Boost DC/DC Converter Optimized
for WCDMA
200mA I_OUT, Synchronous Buck-Boost 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
DC/DC Converters in SOT-23
Packages
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3532fc
LT 0308 REV C • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2006