LTC3355
20
3355fb
For more information www.linear.com/LTC3355
LINEAR TECHNOLOGY CORPORATION 2014
LT 0415 REV B • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC3355
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TYPICAL APPLICATION
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C1
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V
INS
V
IN
C
CAP
1µF
C
VIN
*
10µF
C
IN
10µF
1.4V
NiMH
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OUT
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INM5
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SW1
L1
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15
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OUT
2
FB
14
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CAP
16
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11
SW2
CFB
19
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9
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3
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CBST
I
BSTPK
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CHG
LTC3355
PFOB
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CPGOOD
EN_CHG
MODE
*OPTIONAL
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PART
NUMBER DESCRIPTION COMMENTS
LTC3225/
LTC3225-1
150mA Supercapacitor Charger Low Noise, Constant Frequency Charging of Tw o Series Supercapacitors. Automatic
Cell Balancing Prevents Capacitor Overvoltage During Charging. Programmable Charge
Current (Up to 150mA). 2mm × 3mm DFN Package
LTC3226 2-Cell Supercapacitor Charger with Backup
PowerPath™ Controller
1×/2× Multimode Charge Pump Supercapacitor Charger Ideal Diode Main PowerPath™
Controller, Internal 2A LDO Back-Up Supply, 16-Lead (3mm × 3mm) QFN
Package
LT3485 Photoflash Capacitor Chargers with Output
Voltage Monitor and Integrated IGBT Drive
Integrated IGBT Driver; Voltage Output Monitor; Uses Small Transformers: 5.8mm
× 5.8mm × 3mm. Operates from Tw o AA Batteries, Single Cell Li-Ion or Any Supply
from 1.8V Up to 10V. No Output Voltage Divider Needed; No External Schottky Diode
Required. Charges Any Size Photoflash Capacitor; 10-Lead (3mm × 3mm) DFN Package
LTC3625/
LTC3625-1
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 Prevents Capacitor Overvoltage During Charging. Programmable
Charging Current Up to 500mA (Single Inductor), 1A (Dual Inductor). V
IN
= 2.7V to
5.5V, Low No-Load Quiescent Current: 23µA. 12-lead 3mm × 4mm DFN Package
LT
®
3750 Capacitor Charger Controller Charges Any Size Capacitor; Easily Adjustable Output Voltage. Drives High Current
NMOS FETs; Primary-Side Sense—No Output Voltage Divider Necessary. Wide Input
Range: 3V to 24V; Drives Gate to V
CC
– 2V. 10-Lead MS Package
LT3751 High Voltage Capacitor Charger Controller with
Regulation
Charges Any Size Capacitor; Low Noise Output in Voltage Regulation Mode. Stable
Operation Under a No-Load Condition; Integrated 2A MOSFET Gate Driver with
Rail-to-Rail Operation for V
CC
≤ 8V. Wide Input V
CC
Voltage Range
(5V to 24V). 20-Pin QFN 4mm × 5mm and 20-Lead TSSOP Packages
LTC4425 Supercapacitor Charger with Current Limited
Ideal Diode
Constant-Current/Constant-Voltage 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, Auto Cell Balancing, 20µA Quiescent Current, Shutdown
Current <2µA. Low
Profile 12-Pin 3mm × 3mm DFN or a 12-Lead MSOP Package
