2.5V–5.5V, 3A Reversible Buck/Boost Regulator for Backup Power Applications

Applications

* Aftermarket Automotive Tracking * Handheld Industrial Equipment * Industrial Sensor and Actuators * Portable Devices/Computers with Removable Battery

* 2.5V to 5.5V System Output Voltage Range

* 0.5V to 5.5V Supercapacitor Voltage Range

* ±1% Threshold Accuracy

* 2.5% Hysteresis between Backup and Charging

* 1A to 3A Peak Inductor Current Limit

* Peak Inductor Current Is Pin-Programmable over 1A to 3A through External Resistor

* 94% Peak Efficiency, Charging or Discharging Mode

* 4µA Quiescent Current in Ready State

* After Supercapacitor Is Charged, Draws only 4µA of Quiescent Current

* Ready and Backup State Outputs

* RDY and BKB Flags Provide Real-Time Status to System

* 3mm x 3mm, 16-Pin TQFN Package