FAN8303MX

The FAN8303MX is a monolithic non-synchronous step-down (buck) DC-to-DC Regulator with internal power MOSFETs. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. Current-mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The regulator draws less than 40µA shutdown current. FAN8303 requires a minimum number of readily available standard external components. External compensation, enable and programmable soft-start features allow design optimization and flexibility. Cycle-by-cycle current limit, frequency foldback and thermal shutdown provide protection against shorted outputs.

• Stable with low ESR output ceramic capacitors
• Thermal shutdown with hysteresis
• Cycle-by-cycle overcurrent protection
• Up to 90% efficiency
• 0.22Ω Internal power MOSFET switch
• <lt/>40µA Shutdown current

Applications

Consumer Electronics, Communications & Networking, Power Management