Description
The LTC®3625/LTC3625-1 are programmable supercapacitor chargers designed to charge two supercapacitors in series to a fixed output voltage (4.8V/5.3V or 4V/4.5V selectable) from a 2.7V to 5.5V input supply.
Features
- n High Efficiency Step-Up/Step-Down Charging of Two Series Supercapacitors
n Automatic Cell Balancing Prevents Capacitor Overvoltage During Charging
n Programmable Charging Current Up to 500mA (Single Inductor), 1A (Dual Inductor)
n VIN = 2.7V to 5.5V n Selectable 2.4V/2.65V Regulation per Cell (LTC3625) n Selectable 2V/2.25V Regulation per Cell (LTC3625-1) n Low No-Load Quiescent Current: 23µA n IVOUT, IVIN < 1µA in Shutdown n Low Profile 12-lead 3mm × 4mm DFN Package.