Fairchild Semiconductor FAN2356AMPX
The FAN2356A is a highly efficient synchronous buck regulator. The regulator is capable of operating with an input range from 4.5 V to 24 V and supporting up to 6 A continuous load currents. The FAN2356 utilizes Fairchild’s constant on-time control architecture to provide excellent transient response and to maintain a relatively constant switching frequency.FEATURES
● VIN Range: 4.5 V to 24 V● High Efficiency: Over to 96% Peak
● Continuous Output Current: 6 A
● PFM Mode for Light-Load Efficiency
● Excellent Line and Load Transient Response
● Precision Reference: ±1% Over Temperature
● Output Voltage Range: 0.6 to 5.5 V
● Programmable Frequency: 200 kHz to 1.5 MHz
● Programmable Soft-Start
● Low Shutdown Current
● Adjustable Sourcing Current Limit
● Internal Boot Diode
● Thermal Shutdown
● Halogen and Lead Free, RoHS Compliant
APPLICATIONS
● Mainstream Notebooks● Servers and Desktop Computers
● Game Consoles
● Telecommunications
● Storage
● Base Stations
DESCRIPTION
This device utilizes Pulse Frequency Modulation (PFM) mode to maximize light-load efficiency by reducing switching frequency when the inductor is operating in discontinuous conduction mode at light loads, while clamping the minimum frequency above the audible range with ultrasonic mode. Switching frequency and over-current protection can be programmed to provide a flexible solution for various applications.