RT4805 - Richtek Technology

RT4805 Synchronous Boost Regulator

The RT4805 allows systems to take advantage of new battery chemistries that can supply significant energy when the battery voltage is lower than the required voltage for system power ICs. By combining built-in power transistors, synchronous rectification, and low supply current; this IC provides a compact solution for systems using advanced Li-Ion battery ch.

Features

 4 Few External Components: 0.47H Inductor and 0603 Case Size Input and Output Capacitors
 Input Voltage Range: 1.8V to 5V
 Output Range from 2.85V to 4.4V  VSEL = L 3.2V  VSEL = H 3.4V
 Maximum Continuous Load Current: 2A at VIN > 2.65V Boosting VOUT to 3.35V
 Up to 96% Efficient
 True Bypass Operation when VIN > Target VOUT
 Internal Synchronous Rectifier
 True Load Disconnect when Shut Down
 Forced Bypass Mode
 VSEL Control to Optimize Target VOUT
 Short-Circuit Protection
 I2C Controlled Interface
 Ultra low Operating Quiescent Current
 Small WL-CSP 16B Package Application.