FAN48632 — 2.5 MHz, 2.0 A Pulsed-Load Synchronous TinyBoost™ Regulator with Bypass Mode for GSM PA Supply
April 2014
F...
FAN48632 — 2.5 MHz, 2.0 A Pulsed-Load Synchronous TinyBoost™
Regulator with Bypass Mode for GSM PA Supply
April 2014
FAN48632 2.5 MHz, 2.0 A Pulsed-Load Synchronous TinyBoost™
Regulator with Bypass Mode for GSM PA Supply
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 : 3.3 V, 3.5 V Maximum Continuous Load Current of: 1.5 A
at VIN of 2.6 V
Maximum Pulsed Load current :of 2.0 A for GSM 217 Hz
repetition rate ,boosting VOUT to 3.3 V or 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, Supply GSM RF PA.
Cell Phones, Smart Phones, Tablets
Description
The FAN48632 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 FAN48632 is a boost
regulator designed to provide a minimum output voltage (VOUT(MIN)) from a single-cell Li-Ion battery, ...