Supercapacitor Chargers

Analog Devices offers a portfolio of linear, switching, and switched capacitor ICs designed to charge supercapacitors (also known as ultracapacitors). These devices offer input or output current limiting, automatic cell balancing, and a range of protection features that make them uniquely suited to supercap charging. Due to the number of advantages supercapacitors have, such as lower effective series resistance (ESR) and enhanced durability in the face of repeated charging, they are an increasingly important alternative to batteries in applications where the importance of power delivery trumps that of total energy storage.
Product Selection Table

Supercapacitor Chargers

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Vout MaximumTopologyCommentsFeaturesPrice (1000+)
($ US)
1LT8228 6 100 40 100V Boost, Buck Bidirectional Synchronous 100V Buck/Boost Controller with Reverse Supply, Reverse Current and Fault Protection 100% Duty Cycle, Bidirectional, Constant Current Constant Voltage, External Synchronization, Input Current Limit, Input Current Monitor, Output Current Limit, Output Current Monitor, Output Short Circuit Protection, Overtemperature Protection, Overvoltage Protection, PLL, Resistor Set Frequency, Reverse Current Protection, Reverse Input Protection, SOA Sharing, Soft Start, Spread Spectrum $6.60 (LT8228EFE#PBF)
2LT8708-1 2.8 80 15- Buck-Boost 80V Synchronous 4-Switch Buck-Boost DC/DC Controller with Flexible Bidirectional Capability Input Current Monitor, Input Current Regulation, Output Current Monitor, Output Current Regulation, PolyPhase, Resistor Set Frequency $6.60 (LT8708EUHG-1#PBF)
3LT8708 2.8 80 15- Buck-Boost 80V Synchronous 4-Switch Buck-Boost DC/DC Controller with Flexible Bidirectional Capability Input Current Monitor, Input Current Regulation, Output Current Monitor, Output Current Regulation, PolyPhase, Resistor Set Frequency $6.60 (LT8708EUHG#PBF)
4LTC4041 2.9 5.5 2.5 5.4V Boost, Buck 2.5A Supercapacitor Backup Power Manager Automatic Cell Balancing, Backup Controller $2.90 (LTC4041EUFD#PBF)
5LTC3351 4.5 35 10 20V Buck Hot Swappable Supercapacitor Charger, Backup Controller and System Monitor Backup Controller, Cell Monitor, Hot Swap $5.25 (LTC3351EUFF#PBF)
6LTM8064 6 58 6 36V Buck 58VIN, 6A CVCC Step-Down µModule Regulator External Synchronization, Output Current Regulation, Resistor Set Frequency $16.50 (LTM8064EY#PBF)
7LTC3643 3 17 2 40V Boost Charger, Buck Backup LTC3643 - 2A Bidirectional Power Backup Supply High Vout for Electrolytic Capacitor Charging, PowerPath, Programmable Charge Current $4.45 (LTC3643EUDD#PBF)
8LTC3110 1.71 5.5 2 5.5V Buck-Boost 2A Bidirectional Buck-Boost DC/DC Regulator and Charger/Balancer Backup Controller, Burst Mode, Input Current Limit $4.45 (LTC3110EUF#PBF)
9LT3761 4.5 60 10 100V Boost, Buck, Buck-Boost, LED Driver, Sepic LT3761 Offers Open LED Status Pin, LT3761-1 Offers Frequency Synchronization Open LED Protection, Rail-to-Rail Current Sense, Resistor Set Frequency $3.20 (LT3761EMSE#PBF)
10LTC3350 4.5 35 10 Up to 35V Boost, Buck High Current Supercapacitor Backup Controller and System Monitor Active Charge Balancing, Input Current Limit, Output Current Limit, Voltage/Current/ESR/Capacitance Monitors $3.95 (LTC3350EUHF#PBF)
11LTC3128 1.73 5.5 3 5.5V Buck-Boost 3A Monolithic Buck-Boost Supercapacitor Charger and Balancer with Accurate Input Current Limit Active Charge Balancing, Burst Mode, Output Current Limit, Output Disconnect, Power Good $3.95 (LTC3128EUFD#PBF)
12LTC3355 3 20 1 5V Buck 20V 1A Buck DC/DC with Integrated SCAP Charger and Backup Regulator Output Current Limit $3.25 (LTC3355EUF#PBF)
13LT3796 6 100 10 100V Boost, Buck, Buck-Boost, LED Driver, Sepic 100V Constant-Current and Constant-Voltage Controller with Dual Current Sense External Synchronization, Output Current Regulation, Resistor Set Frequency, True Color PWM Dimming $3.45 (LT3796EFE#PBF)
14LTM8026 6 36 5 24V Buck 36Vin, 5A, CVCC Step-Down uModule Regulator External Synchronization, Output Current Regulation, Resistor Set Frequency $12.58 (LTM8026EV#PBF)
15LTM8052A 6 36 5 24V Buck 36Vin, 5A, 2-Quadrant CVCC Buck uModule, No Output OVP External Synchronization, Output Current Regulation, Resistor Set Frequency $13.17 (LTM8052AEV#PBF)
16LTM8052 6 36 5 24V Buck 36Vin, 5A, 2-Quadrant CVCC Buck uModule, 125% Output OVP External Synchronization, Output Current Regulation, Resistor Set Frequency $13.17 (LTM8052EV#PBF)
17LTC3226 2.5 5.5 315m 5.3V Charge Pump 2-Cell Supercapacitor Charger with Backup PowerPath Controller Automatic Cell Balancing, PowerPath $2.67 (LTC3226EUD#PBF)
18LTC3625-1 2.7 5.5 1 4.5V, 4V Boost, Buck 1A High Efficiency 2-Cell Supercapacitor Charger with Automatic Cell Balancing Automatic Cell Balancing, Programmable Charge Current $3.00 (LTC3625EDE-1#PBF)
19LTC3625 2.7 5.5 1 4.8V, 5.3V Boost, Buck 1A High Efficiency 2-Cell Supercapacitor Charger with Automatic Cell Balancing Automatic Cell Balancing, Programmable Charge Current $3.00 (LTC3625EDE#PBF)
20LTC4425 2.7 5.5 3 5.5V Linear Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor Output Current Limit $2.25 (LTC4425EDD#PBF)
21LTC3619 2.5 5.5 800m Vin Buck 400mA/800mA Synchronous Step-Down 100% Duty Cycle, Burst Mode, Input Current Limit, Power Good $2.25 (LTC3619EDD#PBF)
22LTC3606B 2.5 5.5 800m Vin Buck 800mA Synchronous Step-Down DC/DC with Average Input Current Limit 100% Duty Cycle, Input Current Limit, Power Good $2.10 (LTC3606BEDD#PBF)
23LTC3619B 2.5 5.5 800m Vin Buck 400mA/800mA Synchronous Step-Down 100% Duty Cycle, Input Current Limit, Power Good $2.25 (LTC3619BEDD#PBF)
24LTC3127 1.8 5.5 1 5.25V Buck-Boost 1A Buck-Boost DC/DC Converter with Programmable Input Current Limit Burst Mode, Input Current Limit, Output Disconnect $2.95 (LTC3127EDD#PBF)
25LTC3125 1.6 5.5 1 5.25V Boost 1.2A Synchronous Step-Up DC/DC Converter with Input Current Limit Burst Mode, Input Current Limit, Output Disconnect $2.25 (LTC3125EDCB#TRPBF)
26LTC3225-1 3 5.5 150m 4.5V, 4V Charge Pump 150mA Supercapacitor Charger, Selectable 2V or 2.25V Per Cell Automatic Cell Balancing, Programmable Charge Current $2.00 (LTC3225EDDB-1#TRPBF)
27LTC3225 3 5.5 150m 4.8V, 5.3V Charge Pump 150mA Supercapacitor Charger, Selectable 2.4V or 2.65V Per Cell Automatic Cell Balancing, Programmable Charge Current $2.00 (LTC3225EDDB#TRPBF)