LTC3355

20

3355fb



LINEAR TECHNOLOGY CORPORATION 2014

LT 0415 REV B • PRINTED IN USA

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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TYPICAL APPLICATION

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C1

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1µF

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1.4V

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2000mAhr

47µF

3.3V

50mA (MAX)

5V

0.27

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D2

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LTC3355

PFOB

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EN_CHG

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220pF

1

MICROPROCESSOR

24 HOURS

+

PART

NUMBER

DESCRIPTION

COMMENTS

LTC3225/

LTC3225-1

150mA Supercapacitor Charger

Low Noise, Constant Frequency Charging of Two 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 Two 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 Two Series Supercapacitors. Automatic

Cell Balancing Prevents Capacitor Overvoltage During Charging. Programmable

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

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

(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

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