FAN5355

FAN5355 — 1.1 A / 1 A / 0.8 A, 3 MHz Digitally Programmable Regulator May 2016 FAN5355 1.1 A / 1 A / 0.8 A, 3 MHz Digitally Programmable Regulator Features  93% Efficiency at 3 MHz  800 mA, 1 A, or 1.1 A Output Current  I2C™-Compatible Interface up to 3.4 Mbps  6-bit VOUT Programmable from 0.75 V to 1.975 V  2.7 V to 5.5 V Input Voltage Range  3 MHz Fixed-Frequency Operation  Excellent Load and Line Transient Response  Small Size, 1 μH Inductor Solution  ±2% PWM DC Voltage Accuracy  35 ns Minimum On-Time  High-Efficiency, Low-Ripple, Light-Load PFM  Smooth Transition between PWM and PFM  37 μA Operating PFM Quiescent Current  Pin-Selectable or I2C™ Programmable Output Voltage  On-the-Fly External Clock Synchronization  10-lead MLP (3 x 3 mm) or 12-bump CSP Packages Applications  Cell Phones, Smart Phones  3G, WiFi®, WiMAX™, and WiBro® Data Cards  Netbooks®, Ultra-Mobile PCs  SmartReflex™-Compliant Power Supply  Split Supply DSPs and μP Solutions OMAP™, XSCALE™  Mobile Graphic Processors (NVIDIA®, ATI)  LPDDR2 and Memory Modules Description The FAN5355 device is a high-frequency, ultra-fast transient response, synchronous step-down DC-DC converter optimized for low-power applications using small, low-cost inductors and capacitors. The FAN5355 supports up to 800 mA, 1 A, or 1.1 A load current. The device is ideal for mobile phones and similar portable applications powered by a single-cell Lithium-Ion battery. With an output-voltage range adjustable vi...