FAN53526UC64X

The FAN53526 is a step−down switching voltage regulator that delivers a digitally programmable output from an input voltage supply of 2.5 V to 5.5 V. The output voltage is programmed through an I²C interface capable of operating up to 3.4 MHz. Using a proprietary architecture with synchronous rectification, the FAN53526 is capable of delivering 3.0 A continuous at over 80% efficiency, maintaining that efficiency at load currents as low as 10 mA. The regulator operates at a nominal fixed frequency of 2.4 MHz, which reduces the value of the external components. Additional output capacitance can be added to improve regulation during load transients without affecting stability.

Applications

• Application, Graphic, and DSP Processors: ARM, Tegra, OMAP, NovaThor, ARMADA, Krait, etc.
• Hard Disk Drives, LPDDR3, LPDDR4
• Tablets, Netbooks, Ultra−Mobile PCs
• Smart Phones
• Gaming Devices

Key features

• Fixed−Frequency Operation: 2.4 GHz
• Best−in−Class Load Transient
• Continuous Output Current Capability: 3.0 A
• 2.5 V to 5.5 V Input Voltage Range
• Digitally Programmable Output Voltage:
• 0.600 V to 1.39375 V in 6.25 mV Steps
• Programmable Slew Rate for Voltage Transitions
• I²C−Compatible Interface Up to 3.4 Mbps
• PFM Mode for High Efficiency in Light-Load
• Quiescent Current in PFM Mode: 50 μA (Typical)
• Input Under−Voltage Lockout (UVLO)
• Thermal Shutdown and Overload Protection
• 15−Bump Wafer−Level Chip Scale Package (WLCSP)