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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN25800 500 mA, Low-I , Low-Noise, LDO Regulator Q GND April 2015 FAN25800 500 mA, Low-I , Low-Noise, LDO Regulator Q Features Description V : 2.3 V to 5.5 V IN The FAN25800 is a linear low-dropout regulator with a high PSRR (85 dB at 100 Hz) and low output noise V = 2.7 V, 3.3 V (I Max. = 500 mA) OUT OUT (typically 8 V over a 10 Hz to 100 kHz bandwidth). RMS V = 2.8 V (I Max. = 250 mA) The LDO can provide up to 500 mA of output current. OUT OUT Output Noise Density at 250 mA and The enable control pin can be used to shut down the 10 kHz = 19 nV/Hz (Integrated 8 Vrms) device and disconnect the output load from the input. During shutdown, the supply current drops below 1 A. Low I of 17 A in Regulation and Low-I Dropout Q Q Mode with Optimized Dropout Transitions The FAN25800 is designed to be stable with space- saving ceramic capacitors as small as 0201 case size. <70 mV Dropout Voltage at 250 mA Load The FAN25800 is available in a 4-bump, 0.35 mm pitch, Controlled Soft-Start to Reduce Inrush Current WLCSP package. Thermal Shutdown Protection (TSD) Input Under-Voltage Lockout (UVLO) VIN Short-Circuit Protection (SCP) 1.5F FAN25800 VOUT Stable with Two 1.5 F, 0201 Ceramic Capacitors at VOUT 1.5F 1.5F 4-Ball WLCSP, 0.65 mm x 0.65 mm, 0.35 mm EN Pitch, Plated Solder, 330 m Maximum Thickness Applications Figure 1. Typical Application WiFi Modules PDA Handsets Smart Phones, Tablets, Portable Devices Ordering Information Operating Packing (1) Part Number V I Package OUT OUT MAX Temperature Method FAN25800AUC33X 3.3 V 500 mA 4-Bump, WLCSP, 0.65 x FAN25800AUC28X 2.8 V 250 mA -40C to 85C Tape & Reel 0.65 mm, 0.35 mm Pitch FAN25800AUCF27X 2.7 V 500 mA Note: 1. For other trim options, please contact a Fairchild representative. 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN25800 Rev. 1.5