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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN48618 2.5 MHz, Fixed-Output Synchronous Tiny Boost Regulator CONFIDENTIAL AND PROPRIETARY DO NOT DISTRIBUTE June 2017 FAN48618 2.5 MHz, Fixed-Output, Synchronous Tiny Boost Regulator Features Description The FAN48618 is a low-power boost regulator designed Input Voltage Range: 2.7 V to 4.8 V to provide a minimum voltage regulated rail from a Output Voltage: 5.25 V standard single-cell Li-Ion battery and advanced battery chemistries. Even below the minimum system battery Internal Synchronous Rectification voltage, the device maintains output voltage regulation. True Load Disconnect The combination of built-in power transistors, synchronous rectification, and low supply current suit the Short-Circuit Protection FAN48618 for battery-powered applications. 9-Bump, 1.215 mm x 1.215 mm, 0.4 mm Pitch, The FAN48618 is available in a 9-bump, 0.4 mm pitch, WLCSP Wafer-Level Chip-Scale Package (WLCSP). Three External Components: 2012 0.47 H Inductor, 0402 4.7 F Input Capacitor, 0603 22 F VIN VOUT Output Capacitor + C IN Battery C OUT L1 4.7 F SYSTEM 22 F Applications LOAD FAN 48618 SW PGND 0. 47 Class-D Audio Amplifier and USB OTG Supply H Boost for Low-Voltage Li-Ion Batteries EN AGND Smart Phones, Tablets, Portable Devices, and Wearables Figure 1. Typical Application Ordering Information Operating Device Part Number V Temperature Package Packing Method OUT Marking Range 9-Bump, 0.4 mm Pitch, Wafer- (1) FAN48618BUC53X 5.25 V -40C to 85C Level Chip-Scale Package Tape and Reel J9 (WLCSP) Note: 1. Tape and reel specifications are available on www.onsemi.com. 2017 Semiconductor Components Industries, LLC. www.fairchildsemi.com FAN48618 Rev. 1.0 www.onsemi.com