Part # FAN2011 datasheet

Part Manufacturer: Fairchild Semiconductor

Fairchild Semiconductor

Part Description: FAN2011.fm


Part Details:

FAN2011/F April 2006 AN2012 1.5A Lo FAN2011/FAN20121.5A Low Voltage Current Mode Synchronous PWM Buck Regulator Features Description 95% Efficiency, Synchronous Operation The FAN2011/FAN2012 is a high-efficiency, low-noise w Adjustable Output Voltage from 0.8V to V synchronous Pulse Width Modulated (PWM) current IN V mode DC-DC converter, designed for low voltage appli- olta 4.5V to 5.5V Input Voltage Range cations. It provides up to 1.5A continuous load current Up to 1.5A Output Current from the 4.5V to 5.5V input. The output voltage is adjust- g Fixed Frequency 1.3 MHz PWM Operation e able over a wide range of 0.8V to VIN by means of an Current Mode Sync 100% Duty Cycle Low Dropout Operation (LDO) external voltage divider. Soft Start The FAN2011 is always on, while the FAN2012 has an Excellent Load Transient Response "Enable Input," and the device can be put in the shut- 3x3mm 6-lead MLP Package down mode, in which the ground current falls below 1µA. Applications A current mode control loop with a fast transientresponse ensures excellent line and load regulation. The Hard Disk Drive fixed 1.3MHz switching frequency enables the user to Set Top Box choose a small, inexpensive external inductor and Point of Load Power capacitor. Filtering is also easily accomplished with very hr small components. Notebook Computers onous PWM Buc Communications Equipment Protection features include input under-voltage lockout,short circuit protection and thermal shutdown. Soft-startlimits in-rush current during start-up conditions. The device is available in a 3x3mm 6-lead MLP package,making it possible to build a 1.5A complete DC-DC con-verter in a tiny space on the PCB. k Regulator Ordering Information Ambient Operating Product Number Output Voltage Package Type Temperature


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FAN2011.pdf Datasheet