Solutions Search - Supercapacitor Chargers

LTC3643 5V Backup System with VIN From 5V to 60V

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LTC3643 12V Backup System for Automotive Applications

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LTC3643 Temporary Supply Booster

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LTC3643 40V Synchronous Boost Regulator with Input Disconnect

Nov 4th 2015
The LTC®3643 is a bidirectional synchronous step-up charger and step-down converter which efficiently charges a capacitor array up to 40V from an input supply between 3V to 17V. When the input supply falls below the programmable power-fail threshold, the step-up charger operates in reverse as a synchronous step-down regulator ...

 

LT3761 94% Efficient Boost LED Driver for Automotive Headlamp with 25:1 PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 40W SEPIC LED Driver

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 10W Grounded Anode Inverting LED Driver

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 Boost LED Driver for 30kHz PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 Buck Mode 5A LED Driver for 40kHz PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3761 80W High Voltage Boost LED Driver with 25:1 Internally Generated PWM Dimming

Sep 3rd 2015
The LT®3761 is a DC/DC controller designed to operate as a constant-current source and constant-voltage regulator. It features a programmable internal PWM dimming signal. The LT3761 is ideally suited for driving high current LEDs, but also has features to make it suitable for charging batteries and supercapacitors. The ...

 

LT3796 Boost LED Driver for Twin LEDs with Detection and Protection for Faulty LED

Sep 1st 2015
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LTC3110 3.3V/2A Output from Stack of Supercapacitors Backup/Recharge Application with Active Voltage Balancing

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 1.8V/300mA Output from Single Capacitor Discharged from 2.5V to 1V and with Reserve Available Down to 0.3V

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 500mA USB Charge/Backup Application with Variable Charging Power, PCHRG, Depending on System Load

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 Autonomous Backup and Recharge Application with Input Isolation Switch

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 Lead Acid Battery Backup/Recharge Application

Aug 27th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LTC3110 - 2A Bidirectional Buck-Boost DC/DC Regulator and Charger/Balancer

Jun 17th 2015
The LTC®3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its wide 0.1V to 5.5V capacitor/battery voltage and 1.8V to 5.25V system backup voltage ranges make it well suited to a wide variety of backup applications using supercapacitors or batteries. A proprietary low noise switching ...

 

LT3796 SEPIC Sealed Lead Acid (SLA) Battery Charger

Sep 23rd 2014
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LTM8052 36VIN, 3.3VOUT Step-Down CVCC Converter

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 36VIN, LTM8052 Charges Two 2.5V Series Supercapacitors at 5.6A

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 36VIN, –5VOUT Negative CVCC Converter

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 36VIN, 12VOUT Step-Down CVCC Converter

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LTM8052 Stack Two LTM8052s to Charge and Actively Balance Supercapacitors (or Batteries)

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

Two LTM8052As Used to Regulate Positive or Negative Voltage (and Current) Across a Peltier Device

Sep 23rd 2014
The LTM®8052/LTM8052A is a 36VIN, 5A, 2-quadrant constant-voltage, constant-current (CVCC) step-down μModule® regulator. Included in the package are the switching controller, power switches, inductor and support components. Operating over an input voltage range of 6V to 36V, the LTM8052/LTM8052A supports an output ...

 

LT3796 SEPIC LED Driver with 100:1 Analog Dimming

Aug 25th 2014
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LTC3350 25V to 35V, 6.4A Supercapacitor Charger with 2A Input Current Limit and 28V, 50W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 20V, 5.3A LiFePO4 Battery Charger with 4.6A Input Current Limit and 12V, 48W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 20V, 16A Supercapacitor Charger with 6.4A Input Current Limit and 10V, 60W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 20V, 4A Supercapacitor Charger with 2A Input Current Limit and 5V, 2A Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 35V, 4A Supercapacitor Charger with 2A Input Current Limit and 10V, 1A Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 11V to 15V, 2.3A Zeta-SEPIC High Voltage Capacitor Charger with 2A Input Current Limit and 10V, 25W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 4.8V to 12V, 10A Supercapacitor Charger with 6.4A Input Current Limit and 5V, 30W Backup Mode

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3350 12V PCle Backup Controller

Aug 8th 2014
The LTC®3350 is a backup power controller that can charge and monitor a series stack of one to four supercapacitors. The LTC3350’s synchronous step-down controller drives N‑channel MOSFETs for constant current/constant voltage charging with programmable input current limit. In addition, the step-down converter ...

 

LTC3225 5V Supercapacitor Back-Up Supply

Aug 7th 2014
The LTC3225/LTC3225-1 are programmable supercapacitor chargers designed to charge two supercapacitors in series to a selectable fixed output voltage (4.8V/5.3V for the LTC3225 and 4V/4.5V for the LTC3225-1) from input supplies as low as 2.8V to 5.5V. Automatic cell balancing prevents overvoltage damage to either supercapacitor. ...

 

LTC3355 Tantalum Capacitor Charger and Ride-Through Backup Supply

Mar 7th 2014
The LTC®3355 is a complete input power interrupt ridethrough DC/DC system. The part charges a supercapacitor while delivering load current to VOUT, and uses energy from the supercapacitor to provide continuous VOUT backup power when VIN power is lost. The LTC3355 contains a nonsynchronous constant frequency current mode ...

 

LTC3355 Supercapacitor Charger and Ride-Through Power Supply

Mar 7th 2014
The LTC®3355 is a complete input power interrupt ridethrough DC/DC system. The part charges a supercapacitor while delivering load current to VOUT, and uses energy from the supercapacitor to provide continuous VOUT backup power when VIN power is lost. The LTC3355 contains a nonsynchronous constant frequency current mode ...

 

LTC3355 NiMH Trickle Charger and Ride-Through Backup Supply

Mar 7th 2014
The LTC®3355 is a complete input power interrupt ridethrough DC/DC system. The part charges a supercapacitor while delivering load current to VOUT, and uses energy from the supercapacitor to provide continuous VOUT backup power when VIN power is lost. The LTC3355 contains a nonsynchronous constant frequency current mode ...

 

Dual Supercapacitor Backup Power Supply, 0.5V to 5V

Jul 30th 2012
The LTC3122 is a synchronous step-up DC/DC converter with true output disconnect and inrush current limiting. The 2.5A current limit along with the ability to program output voltages up to 15V makes the LTC3122 well suited for a variety of demanding applications. Once started, operation will continue with inputs down to 500mV, ...

 

LT3796 28VIN to 28V SuperCap Charger with Input Current Limit and Charge Done Flag

Apr 3rd 2012
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LT3796 Solar Panel Driven SLA Battery Charger with Maximum Power Point Tracking

Apr 3rd 2012
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LT3796 SEPIC Converter with RWIRE Compensation and Output Current Limit

Apr 3rd 2012
The LT®3796/LT3796-1 are DC/DC controllers designed to regulate a constant-current or constant-voltage and are ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Two ground referred voltage FB pins serve as the input for ...

 

LTC3226 Li-Ion Backup Supply

Jul 8th 2011
The LTC3226 is a 2-cell series supercapacitor charger with a backup PowerPath controller. It includes a charge pump supercapacitor charger with programmable output voltage, a low dropout regulator, and a power-fail comparator for switching between normal and backup modes. The constant input current supercapacitor charger is ...

 

LTC4425 3 x AA Alkaline to High Peak Power 3.3V at 2A Using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425 Redundant USB & 3xAA High Peak Power Battery Supplies using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425 USB to High Peak Power 3.3V Supply Using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425 Li-Ion High Peak Power Battery Buffer Using Two Supercapacitors

Mar 3rd 2010
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425/LTC3663 12V Input to 5V Outputs High Peak-Power & Backup Supply using Two Supercapacitors with Input Voltage Monitoring

Jul 20th 2009
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

Power Backup System Using Supercapacitors

Apr 5th 2007
This circuit shows a power holdup system that incorporates a supercapacitor stack with the capacity to provide standby power of 165mW for about 45 seconds in the absence of battery power. An LDO converts the output of the supercapacitor stack to a constant voltage supply during backup mode. ...

 

LTC4425 High Current USB Battery and Supercapacitors Charger with Power Path Control

Mar 22nd 2007
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425 Embedded Automotive (6V to 36V Input) to 5V/3.3V/1.8V/1.2V Output Peak-Power Controller using Two Supercapacitors

Mar 19th 2007
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425/LTC3533 3.3V at 1.5A from 5V Peak-Power & Back-up Supply using Two Supercapacitors

Mar 15th 2007
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC4425/LTC3606 Complete Energy Utilization Maximizes Run Time of Supercap Ride-Through Application

Oct 31st 2006
This figure shows a complete 3.3V/200mA ride-through application that maximizes the amount of power extracted from the supercap to support the load. The main components of the ride-through application include the LTC4425 complete 2A supercapacitor charger (it clamps the individual cell voltages to ensure that the cells do ...

 

LTC4425/LTC3505 12V to 5V/3.3V High Peak Power Supply using Two Supercapacitors

Aug 28th 2006
The LTC4425 is a constant-current/constant-voltage linear charger designed to charge a 2-cell supercap stack from either a Li-Ion/Polymer battery, a USB port, or a 2.7V to 5.5V current-limited supply. The part operates as an ideal diode with an extremely low 50mΩ on-resistance making it suitable for high peak-power/low ...

 

LTC3128 5.0V to 3.3V Converter with Power Ride-Through

Jan 6th 2005
The LTC®3128 is a highly efficient, buck-boost DC/DC supercapacitor charger. It operates efficiently from input voltages above, below or equal to the output voltage. The LTC3128 incorporates accurate programmable average input current limit, active charge balancing and programmable maximum capacitor voltage. This combination ...

 

12V Power Ride-Through Application Using Six Supercapacitors in Series and Voltage Supervisor

Sep 15th 2004
The LTC3225 is a programmable supercapacitor chargers designed to charge two supercapacitors in series to a selectable output voltage (4.8V/5.3V or 4V/4.5V) from 2.8V to 5.5V input with automatic cell balancing. This example uses six supercapacitors in series charged by three LTC3225’s. Voltage supervision is provided by ...

 

LTC3625 5V Power Ride Through

Jun 5th 2002
In the event of an interruption to the main power supply, the supercapacitors can power the system for up to several seconds. The diode or controller LTC4412 automatically switches the input of the LTM4616 to the supercapacitors if the 5V power is unavailable. The LTC3625/LTC3625-1 are programmable supercapacitor chargers ...

 

5V Power Ride-Through Application Using Two Series Connected 10F, 2.7V Supercapacitors Charged to 4.8V That Can Hold Up 20W for 1.42 seconds

Jun 5th 2002
The LTC3225 is a programmable supercapacitor chargers designed to charge two supercapacitors in series to a selectable output voltage (4.8V/5.3V or 4V/4.5V) from 2.8V to 5.5V input with automatic cell balancing. ...

 

LTC3625 Supercapacitor Energy Storage System for Data Backup

Jun 5th 2002
This circuit shows a supercapacitor-based power backup system using the LTC3625 supercapacitor charger, an automatic power crossover switch using the LTC4412 PowerPath controller and an LTM4616 dual output μModule DC/ DC converter. ...

 

12V Power Ride-Through Application Using Six 10F, 2.7V Supercapacitors in Series with Front End Flyback

Dec 5th 2000
The LTC3225 is a programmable supercapacitor chargers designed to charge two supercapacitors in series to a selectable output voltage (4.8V/5.3V or 4V/4.5V) from 2.8V to 5.5V input with automatic cell balancing. This example uses six 10F, 2.7V supercapacitors in series that charged by three LTC3225’s set to 4.8V with ...

 

LTC3625 12V Power Ride Through Using Six 10F, 2.7V Supercapacitors in Series with Front End Flyback

Dec 5th 2000
Multiple LTC3625's can be stacked in series to store significantly more energy and extend hold up time in ride through or last gasp applications. In this circuit, the three outputs of the LT1737 flyback converter drive three LTC3625's, each of which charges a pair of 100F capacitors. In the event of an interruption to the ...

 

LTC3625/LT1784 Solar Powered Super Capacitor Charger with MPPT

Oct 26th 2000
The input of the LTC3625 can also be driven by many widely available solar cells. In this circuit, MPPT (maximum power point tracking) is implemented by modulating the charge current based on the input voltage of the LTC3625. The LTC3625/LTC3625-1 are programmable supercapacitor chargers designed to charge two supercapacitors ...