FAN48630

FAN48630 — 2.5MHz, 1500mA Synchronous TinyBoost™ Regulator with Bypass Mode November 2012 FAN48630 — 2.5 MHz, 1500 mA, Synchronous TinyBoost™ Regulator with Bypass Mode Features  Few External Components: 0.47 µH Inductor and 0603 Case Size Input and Output Capacitors  Input Voltage Range: 2.35 V to 5.5 V  Fixed Output Voltage Options: 3.0 V to 5.0 V  Maximum Continuous Load Current: 1500 mA at VIN of 2.6 V Boosting VOUT to 3.5 V  Up to 96% Efficient  True Bypass Operation when VIN > Target VOUT  Internal Synchronous Rectifier  Soft-Start with True Load Disconnect  Forced Bypass Mode  VSEL Control to Optimize Target VOUT  Short-Circuit Protection  Low Operating Quiescent Current  16-Bump, 0.4 mm Pitch WLCSP Applications  Boost for Low-Voltage Li-ion Batteries, Brownout Prevention, Boosted Audio, USB OTG, and LTE / 3G RF Power  Cell Phones, Smart Phones, Portable Instruments L1 Description The FAN48630 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 chemistries. The FAN48630 is a boost regulator designed to provide a minimum output voltage (VOUT(MIN)) from a single-cell Li-Ion battery, even when the battery voltage is below system minimum. Output voltage regulation...