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FAN53610AUC29X Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FAN53610AUC29X Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 16 page August 2012 © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN53600 / FAN56310 • Rev. 1.0.0 FAN53600 / FAN53610 3 MHz, 600 mA / 1A Synchronous Buck Regulator Features 600 mA or 1 A Output Current Capability 26 µA Typical Quiescent Current 3 MHz Fixed-Frequency Operation Best-in-Class Load Transient Response Best-in-Class Efficiency 2.3 V to 5.5 V Input Voltage Range 0.8 V to 3.3 V Fixed Output Voltage Low Ripple Light-Load PFM Mode Forced PWM and External Clock Synchronization Internal Soft-Start Input Under-Voltage Lockout (UVLO) Thermal Shutdown and Overload Protection Optional Output Discharge 6-Bump WLCSP, 0.4 mm Pitch Applications 3G, 4G, WiFi®, WiMAX™, and WiBro® Data Cards Tablets DSC, DVC Netbooks®, Ultra-Mobile PCs All trademarks are the property of their respective owners. Description The FAN53600/10 is a 3 MHz step-down switching voltage regulator, available in 600 mA or 1 A options, that delivers a fixed output from an input voltage supply of 2.3 V to 5.5 V. Using a proprietary architecture with synchronous rectification, the FAN53600/10 is capable of delivering a peak efficiency of 92%, while maintaining efficiency over 80% at load currents as low as 1 mA. The regulator operates at a nominal fixed frequency of 3 MHz, which reduces the value of the external components to as low as 1 µH for the output inductor and 4.7 µF for the output capacitor. In addition, the Pulse-Width Modulation (PWM) modulator can be synchronized to an external frequency source. At moderate and light loads, Pulse Frequency Modulation (PFM) is used to operate the device in Power-Save Mode with a typical quiescent current of 26 µA. Even with such a low quiescent current, the part exhibits excellent transient response during large load swings. At higher loads, the system automatically switches to fixed-frequency control, operating at 3 MHz. In Shutdown Mode, the supply current drops below 1 µA, reducing power consumption. For applications that require minimum ripple or fixed frequency, PFM Mode can be disabled using the MODE pin. The FAN53600/10 is available in 6-bump, 0.4 mm pitch, Wafer-Level Chip-Scale Package (WLCSP). Figure 1. Typical Application Ordering Information Part Number Output Voltage (1) Max. Output Current Active Discharge (2) Package Temperature Range Packing FAN53600AUC33X 3.3 V 600 mA Yes WLCSP-6, 0.4 mm Pitch –40 to +85°C Tape and Reel FAN53610AUC29X 2.9 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. |
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