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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN53600 / FAN53610 3MHz, 600mA / 1A Synchronous Buck Regulator March 2016 FAN53600 / FAN53610 3 MHz, 600 mA / 1A Synchronous Buck Regulator Features Description The FAN53600/10 is a 3 MHz step-down switching voltage 600 mA or 1 A Output Current Capability regulator, available in 600 mA or 1 A options, that delivers a 26 A Typical Quiescent Current fixed output from an input voltage supply of 2.3 V to 5.5 V. Using a proprietary architecture with synchronous 3 MHz Fixed-Frequency Operation rectification, the FAN53600/10 is capable of delivering a Best-in-Class Load Transient Response peak efficiency of 97%. Best-in-Class Efficiency The regulator operates at a nominal fixed frequency of 3 MHz, which reduces the value of the external components 2.3 V to 5.5 V Input Voltage Range to as low as 1 H for the output inductor and 10 F for the Low Ripple Light-Load PFM Mode output capacitor. In addition, the Pulse-Width Modulation (PWM) modulator can be synchronized to an external Forced PWM and External Clock Synchronization frequency source. Internal Soft-Start At moderate and light-loads, Pulse Frequency Modulation Input Under-Voltage Lockout (UVLO) (PFM) is used to operate the device in Power-Save Mode with a typical quiescent current of 26 A. Even with such a Thermal Shutdown and Overload Protection low quiescent current, the part exhibits excellent transient Optional Output Discharge response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, 6-Bump WLCSP, 0.4 mm Pitch operating at 3 MHz. In Shutdown Mode, the supply current drops below 1 A, reducing power consumption. For Applications applications that require minimum ripple or fixed frequency, 3G, 4G, WiFi , WiMAX, and WiBro Data Cards PFM Mode can be disabled using the MODE pin. Tablets The FAN53600/10 is available in 6-bump, 0.4 mm pitch, Wafer-Level Chip-Scale Package (WLCSP). DSC, DVC MODE VIN Netbooks , Ultra-Mobile PCs A1 A2 L 1 SW EN C IN B 1 B2 All trademarks are the property of their respective owners. 2 .2 F FB GND C 1 C 2 C F OUT Figure 1. Typical Application Ordering Information Output Max. Output Active Temperature Part Number Package Packing (1) (2) Voltage Current Discharge Range FAN53600AUC28X 2.8 V 600 mA Yes FAN53610AUC29X 2.9 V 1 A Yes WLCSP-6, Tape and FAN53610AUC30X 3.0 V 1 A Yes 40 to +85C 0.4 mm Pitch Reel FAN53600AUC33X 3.3 V 600 mA Yes FAN53610AUC33X 3.3 V 1 A Yes Notes: 1. Other voltage options available on request. Contact a Fairchild representative. 2. All voltage and output current options are available with or without active discharge. Contact a Fairchild representative. 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN53600 / FAN53610 Rev. 1.4