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FAN48623 2500 mA Synchronous TinyBoost Regulator with Bypass Mode FAN48623 2500 mA, Synchronous TinyBoost Regulator with Bypass Mode Features Description Maximum Continuous Load Current: 2500 mA The FAN48623 allows systems to take advantage of new at VIN of 2.5 V Boosting VOUT to 3.3 V battery chemistries that can supply significant energy when the battery voltage is lower than the required voltage for Maximum Pulse Load Current of 3.5 A for GSM PAs (1 Slot) and PMIC support simultaneously, V =3.1 V, system power ICs. By combining built-in power transistors, IN synchronous rectification, and low supply current, this IC VOUT=3.4 V provides a compact solution for systems using advanced Li- Up to 97% Efficient Ion battery chemistries. 4 External Components: 2520 case 0.47 H Inductor The FAN48623 is a boost regulator designed to provide a and 0603 Case Size Input and Output Capacitors minimum output voltage from a single-cell Li-Ion battery, Input Voltage Range: 2.5 V to 5.5 V even when the battery voltage is below system minimum. The output voltage regulation is guaranteed up to a Fixed Output Voltage Options: 3.0 V to 5.0 V maximum load current of 2500 mA. The regulator transitions True Bypass Operation w hen V > Target V IN OUT smoothly between Bypass and normal Boost Mode. The Integrated Synchronous Rectifier device can be forced into Bypass Mode to reduce quiescent current. True Load Disconnect The FAN48623 is available in a 16-bump, 0.4 mm pitch, Forced Bypass Mode Wafer-Level Chip-Scale Package (WLCSP). V Control to Optimize Target V SEL OUT Short-Circuit Protection (SCP) VIN VOUT + C IN Battery Low Operating Quiescent Current C OUT SYSTEM 10F 2x22F LOAD 16-Bump, 1.81 mm x 1.81 mm, 0.4 mm Pitch, WLCSP 0.47H SW PGND FAN48623 Applications VSEL AGND Boost for Low -Voltage Li-ion Batteries, Brow nout EN Prevention, System PMIC LDOs Supplies, and PG BYP 2G/3G/4G RF PA Supplies Smart Phones, Tablets, Portable Devices Figure 1. Typical Application Ordering Information Output Operating Device ( ) Part Number Voltage 1 Package Packing Temperature Marking V / V SEL0 SEL1 FAN48623UC315X 3.150 / 3.330 JK FAN48623UC32JX 3.20 / 3.413 JD FAN48623UC33X 3.300 / 3.489 JE 16-Ball, 4x4 Array, 0.4 mm Pitch, 250 m Ball, Tape & FAN48623UC35X 3.5 / 3.7 -40C to 85C JF Wafer-Level Chip-Scale Package (WLCSP) Reel FAN48623UC36FX 3.64/ 3.709 JG FAN48623UC50X 5.000 / 5.286 JL FAN48623UC50GX 5.000 / 5.190 JM Note: 1. Other output voltages are available on request. Please contact a ON Semiconductor Semiconductor representative. 2013 Semiconductor Components Industries, LLC Publication Order Number: October-2017,Rev . 2 FAN48623/D L1