Datasheet

LTC3350
46
3350fc
For more information www.linear.com/LTC3350
 LINEAR TECHNOLOGY CORPORATION 2014
LT 0815 REV C• PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com/LTC3350
relaTeD parTs
Typical applicaTion
12V PCle Backup Controller
PART NUMBER DESCRIPTION COMMENTS
Power Management
LTC3128 3A Monolithic Buck-Boost Supercapacitor Charger
and Balancer with Accurate Input Current Limit
±2% Accurate Average Input Current Limit Programmable to 3A, Active Charge
Balancing, Charges 1 or 2 Capacitors, V
IN
Range: 1.73V to 5.5V, V
OUT
Range:
1.8V to 5.5V, 20-Lead (4mm × 5mm × 0.75mm) QFN and 24-Lead TSSOP
Packages
LTC3226 2-Cell Supercapacitor Charger with Backup
PowerPath Controller
1x/2x Multimode Charge Pump Supercapacitor Charger, Automatic Cell
Balancing, PowerPath, 2A LDO Backup Supply, Automatic Main/Backup
Switchover, 2.5V to 5.5V, 16-Lead 3mm × 3mm QFN Package
LTC3355 20V, 1A Buck DC/DC with Integrated SCAP Charger
and Backup Regulator
V
IN
: 3V to 20V, V
OUT
: 2.7V to 5V, 1A Main Buck Regulator, 5A Boost Backup
Regulator Powered from Single Supercapacitor, Overvoltage Protection, 20-
Lead 4mm × 4mm QFN Package.
LTC3625 1A High Efficiency 2-Cell Supercapacitor Charger
with Automatic Cell Balancing
High Efficiency Step-Up/Step-Down Charging of Tw o Series Supercapacitors.
Automatic Cell Balancing. Programmable Charging Current to 500mA (Single
Inductor), 1A (Dual Inductor). 12-Lead 3mm × 4mm DFN Package
LTC4110 Battery Backup System Manager Complete Backup Battery Manager for Li-Ion/Polymer, Lead Acid, NiMH/
NiCd Batteries and Supercapacitors. Input Supply Range: 4.5V to 19V,
Programmable Charge Current Up to 3A, 38-Lead 5mm × 7mm QFN Package.
LTC4425 Linear SuperCap Charger with Current-Limited Ideal
Diode and V/I Monitor
Constant-Current/Constant-V
oltage Linear Charger for 2-Cell Series
Supercapacitor Stack. V
IN
: Li-Ion/Polymer Battery, a USB Port, or a 2.7V to
5.5V Current-Limited Supply. 2A Charge Current, Automatic Cell Balancing,
Shutdown Current <2μA. 12-Pin 3mm × 3mm DFN or 12-Lead MSOP Package
V
IN
V
DD
V
IN
11V TO 20V
INFET
MN1
SiS438DN
MN2
BSZ060NE2LS
MN4
SiS438DN
L1
3.3µH
R
SNSC
0.006Ω
R
CAP1
2.7Ω
R
CAP2
2.7Ω
R
CAP3
2.7Ω
R
CAP4
2.7Ω
R
CAPRTN
2.7Ω
MN3
BSZ060NE2LS
R
SNSI
0.016Ω
VOUTM5VOUTSP
LTC3350
VOUTSN OUTFET
OUTFBPFI
C1
0.1µF
C2
1µF
R
PF1
806k
D
B
1N4448HWT
C
B
0.1µF
C3
4.7µF
C4
0.1µF
C
CAP
22µF
×4
R
FBC1
866k
R
FBC2
118k
C
F
0.1µF
C
CP5
0.1µF
CAP1 10F
C
FBO1
120pF
C
OUT2
2.2µF
×2
C
OUT1
47µF
×2
R
FBO1
649k
R
FBO2
162k
R
PF2
100k
R3
10k
R4
100k
C5
1µF
R6
121Ω
R5
71.5k
C
C
10nF
R
T1
100k
R2
10k
R1
10k
VCC2P5
PFO
CAPGD
SMBALERT
SCL
SDA
PFO
CAPGD
SMBALERT
SCL
SDA
V
OUT
6V
25W IN BACKUP
TGATE
SW
ICAP
VCAP
CAP_SLCT0
CAP_SLCT1
VCAPP5
3350 TA09
CFP
CAP4
CAP3
CAP2
CAP1
CFN
GND
PGND
ITST
RT
T
VC
GPI
DRV
CC
INTV
CC
BST
BGATE
+
CAP2 10F
+
CAP3 10F
+
CAP4 10F
+
CAPRTN
CAPFB
CAP1-4: NESSCAP ESHSR-0010C0-002R7
L1: COILCRAFT XAL7030-332ME
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