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Matching Circuits
The Following Circuits match the search criteria selected above.
12V Input to 5V Outputs High Peak-Power & Backup Supply using Two Supercapacitors with Input Voltage Monitoring 12V Power Ride Through Using Six 10F, 2.7V Supercapacitors in Series with Front End Flyback 12V Power Ride-Through Application Using Six Supercapacitors in Series and Voltage Supervisor 12V to 5V/3.3V High Peak Power Supply using Two Supercapacitors 2.65V at 1.2A Output Super Cap Charging Circuit from 7.5V to 36V Input 20A Super Capacitor Charger with 5V Regulated Output from 10V to 36V Input 28V Input to 0V to 28V Output SEPIC SuperCap Charger with Input Current Limit 3 x AA Alkaline to High Peak Power 3.3V at 2A Using Two Supercapacitors 3.3V at 1.5A from 5V Peak-Power & Back-up Supply using Two Supercapacitors 3.3V to 5.5V input (500mA max) charging 4.4mF super cap (3.3V at 800mA) and providing 1.8V at 400mA 36VIN, 5.6A Two 2.5V Series Supercapacitor Charger 5V at 6mA for 9.6s Supercapacitor Backup Supply 5V Backup Supply from Supercap Runs Down to VIN = 2V with 250mA Load 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 Buck-Boost Converter In SuperCap Backup Power Supply Complete Energy Utilization Maximizes Run Time of Supercap Ride-Through Application Dual Battery Load Sharing with Automatic Switchover to a Wall Adapter Dual Super Cap Charging Circuit from 12V with Balance Voltage Charging Control Circuit Embedded Automotive (6V to 36V Input) to 5V/3.3V/1.8V/1.2V Output Peak-Power Controller using Two Supercapacitors High Current USB Battery and Supercapacitors Charger with Power Path Control Last-Gasp 5V Output from 12V to 15V Supply Using a Supercapacitor Lead-Acid Low-Battery Detector with System Shutdown Li-Ion Backup Supply Li-Ion High Peak Power Battery Buffer Using Two Supercapacitors Power Backup System Using Supercapacitors Power Backup Using Supercapacitors and Optional Keep-Alive Cell Redundant USB & 3xAA High Peak Power Battery Supplies using Two Supercapacitors Saturated Standard Cell Amplifier Single Supercap Charger from 3.3V Input to 2.5V Output Single Supercapacitor Charger from 1.8V to 5.5V Input to 5V Output (1000mA Max Input Current) Solar Powered Super Capacitor Charger with MPPT Stacked Supercap Charger from 2.5V to 5V Input to 4.5V Output Stacked Supercapacitor Charger from 1.8V to 5.5V Input to 5V Output (1000mA Max Input Current) SuperCap Backup Power Supercap Charger Plus a 5V at 4A DC/DC Buck Converter from 5.5V to 30V Input Supercap Powered Backup Supply Supercap-Based Power Ride-Through Circuit Maximizes Run Time Using an Energy Scavenging Scheme Supercapacitor Energy Storage System for Data Backup Two Farad, 5V SuperCap charger from a 3.3V input USB to High Peak Power 3.3V Supply Using Two Supercapacitors USB-GSM application with 5V USB input (500mA max) charging a 4.4mF super cap (3.4V at 800mA) and providing 1.8V at 400mA
12V Input to 5V Outputs High Peak-Power & Backup Supply using Two Supercapacitors with Input Voltage Monitoring
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 average power applications. The LTC4425 charges the output capacitors to an externally programmed output voltage in LDO mode at a constant charge current, or to VIN in normal mode with a smart charge current profile to limit the inrush current until the VIN to VOUT differential is less than 250mV. In addition the LTC4425 can be set to clamp the output voltage to 4.9V or 5.4V.
