FAN48630 — 2.5MHz, 1500mA Synchronous TinyBoost™ Regulator with Bypass Mode
November 2012
FAN48630 — 2.5 MHz, 1500 mA,...
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...