The EC3286 is a monolithic synchronous buck regulator. The device integrates two 90mΩ MOSFETs, and provides 3A of continuous load current over a wide input voltage of 4.75V to 32V. Current mode control provides fast transient response and cycle-by-cycle current limit.
An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 1µA.The EC3286 regulates the output voltage in automatic PSM/PWM mode operation, depending on the output current, for high efficiency operation over light to full load current.
This device, available in an SOP-8(Exposed PAD) package, provides a very compact solution with minimal external components.
●3A Output Current
●Wide 4.75V to 32V Operating Input Range
●Integrated 90mΩ Power MOSFET Switches
●Output Adjustable from 0.923V to 30V
●Up to 93% Efficiency
●Pulse Save Mode(PSM)/PWM Mode Operation
●Stable with Low ESR Ceramic Output Capacitors
●Fixed 340KHz Frequency
●Cycle-by-Cycle Over Current Protection
●Input Under Voltage Lockout
●Distributed Power Systems
●FPGA, DSP, ASIC Power Supplies
●Green Electronics/ Appliances
● Notebook Computers
Typical Applications circuit