FAN53540 Datasheet - Fairchild Semiconductor

FAN53540 Synchronous Buck Regulator

The FAN53540 is a step-down switching voltage regulator that delivers an adjustable output from an input voltage supply of 2.7 V to 5.5 V. Using a proprietary architecture with synchronous rectification, the FAN53540 is capable of delivering 5 A at over 90% efficiency, while maintaining a very high .

FAN53540 Features

* 2.4 MHz Fixed-Frequency Operation

* Best-in-Class Load Transient Response

* 5 A Output Current Capability

* 2.7 V to 5.5 V Input Voltage Range

* Adjustable Output Voltage: 0.8V to 90% of VIN

* PFM Mode for High Efficiency in Light Load (Forced PWM Available on MODE Pin)

FAN53540-FairchildSemiconductor.pdf