DC DC Power Converters electronics projects

FAN8060 designed by Fairchild Semiconductor is a 1MHz, 1A integrated synchronous step-down regulator for DC-DC conversion that provides a peak efficiency of over 95 percent. FAN8060 step-down regulator offers a fast transient response time that swiftly responds to current fluctuations when there is a sudden change in load .The FAN8060 also allows a designer to simply adjust the external compensation to optimize the transient response for any condition. The user-selectable current limit provides protection against output overload and short circuit while its external synchronization pin reduces both EMI and crosstalk.

Main features of FAN8060 are : Current Mode Control , Over 96% Efficient , 2.5V to 5.5V Input Voltage Range , Output Voltage as Low as 1.2V , 1.2MHz Operating Frequency , Less than 1µA Shutdown Current , External Synchronization from 500kHz to 2MHz , 100% Duty Cycle , Synchronous Switching FET; no Schottky Diode Required , Overload / Short-Circuit Protection , Thermal Shutdown .
This Buck Regulator can be used in portable devices and other applications like : PDAs , GPS Dvices , MP3 Players , Digital Cameras , Peripheral Ports , DSP Core , USB Devices , Data Cards.

LTC3554 designed by Linear Technology Corporation is a micropower multifunction power management integrated circuit (PMIC) solution for portable Li-Ion Polymer battery-based applications.
The LTC3554 integrates a USB-compatible linear PowerPath™ manager, a stand-alone battery charger, two high efficiency synchronous buck regulators and pushbutton control .
A pin-selectable standby mode reduces battery drain current to just 10uA with all outputs on. The LTC3554 can be used for low power portable device applications like : personal navigation devices (PNDs), media players , handheld medical and industrial devices.

The LTC3554’s PowerPath manager with automatic load prioritization seamlessly manages the transition between multiple input sources to power the load, while delivering up to 400mA battery charge current from a USB port or 5V wall adapter supply. The input current limit is pin-selectable and internally set (no external resistor is required).
Main features of LT C3554 are : Complete Multi-Function PMIC (Linear Power Manager, Li-Ion Polymer Battery Charger, Two Synchronous Buck Regulators, Pushbutton Control ) , Ultra-Low Quiescent Current , POWER MANAGER & BATTERY CHARGER , Charge Current Programmable up to 400mA from USB or 5V Wall Adapter Input , 240mOhm Internal Ideal Diode Provides Low Loss Power Path from Battery to Load .

LT3582, LT3582-5 and LT3582-12 dual channel DC DC converters which deliver both positive and negative outputs required in many biasing applications such as active matrix OLED (organic light-emitting diode) displays as well as CCD (charge coupled device) applications.

The LT3582 offer an I2C interface that can dynamically program output voltages, power sequencing and output voltage ramps as the application requires. Alternatively, these parameters can be set in manufacturing and made permanent via the built in non-volatile OTP (one time programmable) memory. The LT3582’s positive output voltage can be set between 3.2V and 12.775 in 25mV steps, whereas the negative output can be set between -1.2V and -13.95V in 50mV steps. The LT3582-5 and LT3582-12 are preconfigured with ±5V and ±12V outputs respectively, useful in many signal conditioning applications.
The LT3582 ’s input voltage range of 2.55V to 5.5V make them ideal for Li-Ion powered applications with efficiencies as high as 88%. These features, when combined with less than 325uA of quiescent current, the LT3582 series can maximize battery life.
Main features of this dc converter family are : Digitally Reprogrammable (LT3582) Via I2C for ( Output Voltages, Power Sequencing, Output Voltage Ramp Rates ) , Power-Up Defaults Settable with Non-Volatile OTP , I2C Compatible Interface , All Power Switches Integrated , 350mA Current Limit (Boost) , 600mA Current Limit (Inverting) , All Feedback Resistors Integrated