LTC3532_15 Datasheet, PDF (14/16 Pages) Linear Technology – Micropower Synchronous Buck-Boost DC/DC Converter

LTC3532
TYPICAL APPLICATIO S
Three Cell to 3.3V at 300mA Buck-Boost Converter
With Automatic Burst Mode Operation and Soft-Start
V_IN
2.7V TO 4.5V
R7
200k
C1
4.7μF
C5 _200k
4.7nF
L1
4.7μH
SW1
SW1
SHDN
V_IN
SHDN/SS _LTC3532
BURST
BURST
R_{T RT}
0.01μF
R4
86.6k
SW2
SW2
V_OUT
FB ^FB
VC ^VC
R6
GND
12.1k
C2
150pF
R1
R9
340k 1k
V_OUT
3.3V
300mA
C4
150pF
C3
22μF
R2
200k
3532 TA02
Li-Ion to 5V Boost Converter with Output Disconnect
V_IN
2.5V TO 4.2V
L1
2.2μH
SW1
SW1
C1
4.7μF
R7
200k
C5
4.7nF
SD
SHDN
V_IN
SHDN/SS _LTC3532
BURST BURST
R_{T RT}
R4
28.7k
D1
DMBRM 110LT3
SW2
SW2
V_OUT
FB ^FB
V_C
V_C
R6
GND
12.1k
C2
220pF
R1
R9
412k 1k
V_OUT
5V
300mA
C4
68pF
C3
10μF
R2
133k
3532 TA03
3532fc
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