Industrial

The FAN5353 is a 3MHz fixed-frequency synchronous buck regulator that delivers an adjustable output from an input voltage supply of 2.7V to 5.5V. It has a 3A output current capability, a 2.7V to 5.5V input voltage range, an adjustable output voltage of 0.8V to VIN•0.9, a power good output, internal soft-start, input under-voltage lockout (UVLO), thermal shutdown and overload protection, and a 12-lead 3x3.5mm MLP package.

The FAN5354 is a 3MHz fixed-frequency synchronous buck regulator that delivers an adjustable output from an input voltage supply of 2.7V to 5.5V.

The FAN53540 is a 2.4MHz, 5A TinyBuck™ synchronous buck regulator. It has the following features: 2.4MHz fixed-frequency operation, best-in-class load transient response, 5A output current capability, 2.7V to 5.5V input voltage range, adjustable output voltage: 0.8V to VIN•0.9, PFM mode for high efficiency in light load (Forced PWM Available on MODE Pin), 50µA Typical Quiescent Current in PFM Mode, External Frequency Synchronization, Low Ripple Light-Load PFM Mode with Forced PWM Control, Power Good Output, Internal Soft-Start, Input Under-Voltage Lockout (UVLO), Thermal Shutdown and Overload Protection, No External Compensation Required, 20-Bump WLCSP.

The FAN5355 is a 3MHz digitally programmable regulator that provides 800mA, 1A, or 1.1A output current. The device features an I2C™-compatible interface, output voltage range of 0.75V to 1.975V, input voltage range of 2.7V to 5.5V, 3MHz fixed-frequency operation, excellent load and line transient response, small size, 1µH inductor solution, ±2% PWM DC voltage accuracy, 35ns minimum on-time, high efficiency, low ripple, light-load PFM, smooth transition between PWM and PFM, and 37µA operating PFM quiescent current. The device is available in a 10-lead MLP (3 x 3mm) or 12-bump CSP package and is suitable for applications such as mobile 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 graphics processors (NVIDIA®, ATI), and LPDDR2 and memory modules.

The FAN5358 is a 2MHz, 500mA, SC70 synchronous buck regulator. It operates at a nominal frequency of 2MHz, has a typical quiescent current of 25µA, 500mA output current capability, 2.7V to 5.5V input voltage range, 1.0 to 1.8V fixed output voltages, low ripple, light-load PFM mode, internal soft-start, input under-voltage lockout, thermal shutdown, and overload protection.

The FAN53601 / FAN53611 is a 6MHz, 600mA / 1A synchronous buck regulator that delivers a fixed output from an input voltage supply of 2.3V to 5.5V. It features a 24µA typical quiescent current, 6MHz fixed-frequency operation, best-in-class load transient response, and best-in-class efficiency. Additionally, it offers low ripple light-load PFM mode, forced PWM and external clock synchronization, internal soft-start, input under-voltage lockout (UVLO), thermal shutdown and overload protection, and optional output discharge.

FAN5361 6MHz，600mA / 750mA Synchronous Buck Regulator

The FAN5362 is a 500mA or 750mA, step-down, switching voltage regulator that delivers a fixed output voltage from an input voltage supply of 2.7V to 5.5V. Using a proprietary architecture with synchronous rectification, the FAN5362 is capable of delivering a peak efficiency of 96%, while maintaining efficiency over 90% with load currents as low as 1mA. This regulator transitions seamlessly into and out of 100% duty cycle operation when the supply voltage drops.

The FAN5365 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 FAN5365 supports up to 800mA or 1A load current. The FAN5365 is ideal for mobile phones and similar portable applications powered by a single-cell Lithium-Ion battery. With an output voltage range adjustable via I2C™ interface from 0.75V to 1.975V.

FAN5602 is a universal switched capacitor DC/DC converter capable of step-up or step-down operation from 2.7V to 5.5V input voltage. It features adaptive fractional switching topology, resistance-modulated loop control, and automatic constant-frequency/pulse-skipping mode selection to achieve high efficiency over a wider input/output voltage range and minimize switching noise.

The FAN5665 is a 5V switched capacitor step-up DC/DC converter with an input voltage range from 2.9V to 5.5V. Switch reconfiguration and fractional switching techniques are utilized to achieve high efficiency over the entire input voltage range. The FAN5665 includes built-in under-voltage lockout, short circuit, and thermal protection circuitry. The FAN5665 is available in an 8-bump 0.4mm pitch WLCSP package.

This datasheet details the FAN5902, an 800mA buck converter designed for 3G RFPAs. It features high efficiency, low noise, synchronous, step-down DC-DC converter design, for powering the radio frequency power amplifiers (RFPA) in 3G mobile handsets and other mobile applications. It provides up to 800mA of output current over an input voltage range of 2.7V to 5.5V. The output voltage can be dynamically adjusted from 0.4V up to 3.4V, proportional to an analog input voltage ranging from 0.2V to 1.7V provided by an external DAC. This allows supplying the RFPA with the voltage level that provides optimum Power Added Efficiency (PAE). An integrated bypass FET automatically connects to the output to turn off the converter when the input voltage is above 4.5V. The FAN5902 is available in a compact 12-lead MLP (0.8mm max) and 12-bump WLCSP package.

FAN5903 is a high-efficiency, low-noise, synchronous, step-down, DC-DC converter designed for powering 3G/3.5G/4G RF Power Amplifiers (PAs) in handsets and other mobile applications. It features a 2.7V to 5.5V input voltage range, output voltage range from 0.4V to 3.50V, 60mV typical bypass dropout voltage, 100% duty cycle, 1.34mm x 1.29mm, 9-Bump, 0.4mm-Pitch WLCSP package, 3MHz/6MHz selectable switching frequency, high-efficiency PFM operation, sleep mode, up to 96% synchronous operation efficiency, 10µs output voltage step response, etc.

The FAN5904 is a high-efficiency, low-noise, synchronous, step-down, DC-DC converter optimized for powering Radio Frequency (RF) Power Amplifiers (PAs) in handsets and other mobile applications. It has a wide input voltage range, provides adjustable output voltage, and features a small form factor, integrated bypass FET, and other characteristics.

The FAN8060 is a highly efficient, monolithic, current-mode, step-down synchronous regulator from Fairchild Semiconductor. It can provide 1A continuous current from 2.5V to 5.5V input voltage. The output voltage can be adjusted from 1.2V up to the input voltage with an external voltage divider. External compensation and soft-start allow for design optimization and flexibility. High-frequency operation allows for all-ceramic solutions and small footprints. In addition, a user-selectable current limit provides protection against output overload and short circuit.